RFC 4455 - Definition of Managed Objects for Small Computer System Interface (SCSI) Entities
(Formats: TXT)
Network Working Group M. Hallak-Stamler
Request for Comments: 4455 Sanrad Intelligent Storage
Category: Standards Track M. Bakke
Cisco Systems, Inc.
Y. Lederman
Siliquent Technologies
M. Krueger
Hewlett-Packard
K. McCloghrie
Cisco Systems, Inc.
April 2006
|
Definition of Managed Objects for Small Computer
System Interface (SCSI) Entities
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
This memo defines a portion of the Management Information Base (MIB),
for use with network management protocols in the Internet community.
In particular, it describes managed objects for Small Computer System
Interface (SCSI) entities, independently of the interconnect
subsystem layer.
Table of Contents
1. The Internet-Standard Management Framework ......................3
2. Requirements Notation ...........................................3
3. Overview ........................................................3
3.1. Introduction ...............................................4
3.2. SCSI Terminology ...........................................6
3.2.1. SCSI Application Layer ..............................6
3.2.2. SCSI Device .........................................6
3.2.3. SCSI Port ...........................................6
3.2.4. SCSI Initiator Device ...............................7
3.2.5. SCSI Initiator Port .................................7
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3.2.6. SCSI Target Device ..................................7
3.2.7. SCSI Target Port ....................................7
3.2.8. Logical Units .......................................7
3.2.9. Logical Unit Number .................................7
3.2.10. Interconnect Subsystem .............................7
3.2.11. Device Server ......................................8
3.2.12. Task Manager .......................................8
3.2.13. SCSI Instance ......................................8
3.3. SCSI MIB Module Implementation .............................8
3.4. Bridging and Virtualization ...............................10
3.5. SCSI Command MIB Module ...................................11
4. Structure of the MIB ...........................................11
4.1. The SCSI Device Group .....................................11
4.2. The Initiator Group .......................................11
4.3. The Target Group ..........................................11
4.4. The Discovery Group .......................................12
4.5. The LUN Map Group .........................................12
4.6. The Target Statistic Group ................................12
4.7. The Target High Speed Statistic Group .....................12
4.8. The LUN Map Statistics Group ..............................12
4.9. The LUN Map Statistics High Speed Group ...................13
4.10. The Initiator Statistics Group ...........................13
4.11. The Initiator High Speed Statistic Group .................13
4.12. The Discovery Statistics Group ...........................13
4.13. The Discovery Statistics High Speed Group ................14
4.14. The Device Statistics Group ..............................14
5. Relationships in This MIB ......................................14
6. Relationship to Other MIBs .....................................16
6.1. Host Resource MIB .........................................16
6.2. iSCSI MIB Module ..........................................16
7. Miscellaneous Details ..........................................16
7.1. Names and Identifiers .....................................16
7.2. Logical Unit Number .......................................16
7.3. Notifications .............................................16
7.4. SCSI Domains ..............................................17
7.5. Counters: 32 Bits and 64 Bits .............................17
7.6. Local versus Remote Entities ..............................18
8. Abbreviations ..................................................18
9. Object Definitions .............................................18
10. Object Population Example: SCSI Target and Initiator
Devices on a pSCSI Bus ........................................76
10.1. scsiInstance Table: ......................................77
10.2. scsiDevice Table: ........................................77
10.3. scsiPort Table: ..........................................77
10.4. scsiTransport Table: .....................................77
10.5. scsiIntrDev Table: .......................................78
10.6. scsiInitiatorPort Table: .................................78
10.7. scsiDscTgt Table: ........................................78
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10.8. scsiDscLUN: ..............................................78
10.9. scsiDscLUNIdentifier: ....................................79
10.10. scsiAttTgtPort Table: ...................................79
10.11. scsiTgtDev Table: .......................................79
10.12. scsiTgtPort Table: ......................................80
10.13. scsiLU Table: ...........................................80
10.14. scsiLuId Table: .........................................80
10.15. scsiLunMap Table: .......................................81
10.16. scsiAuthorizedIntr Table: ...............................81
10.17. scsiAttIntrPort Table: ..................................81
11. Security Considerations .......................................81
12. Acknowledgements ..............................................84
13. IANA Considerations ...........................................84
14. References ....................................................84
14.1. Normative References .....................................84
14.2. Informative References ...................................85
1. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
2. Requirements Notation
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
3. Overview
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes a set of managed objects to configure and
monitor Small Computer System Interface entities (SCSI entities),
i.e., SCSI target devices and SCSI initiator devices and SCSI ports.
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SCSI is a client-server protocol in which application clients within
a SCSI initiator device (client) issue service requests to logical
units contained in a SCSI target device(server).
This MIB module is based on documents defined by the ANSI T10
Technical Committee, specifically the SCSI Architecture Model - 2
[SAM2] and SCSI Primary Commands - 2 [SPC2].
The [SAM2] standard is the primary source for the SCSI architecture
discussion in this document and the terminology used in this MIB
module.
3.1. Introduction
In the late 1970s, a firm called Shugart Associates started to have
some considerable success with a peripheral interface definition in
what became the PC marketplace, and this interface was adopted and
extended by an open standards committee to form the Small Computer
Systems Interface (SCSI). SCSI defines an 8-bit-wide multi-drop
"bus" structure, which could interconnect a total of eight
peripherals and computer systems.
It is important to realize that initially SCSI standardized only the
"physical connection", i.e., the connectors, cables, and interface
signals. Thus, even though a peripheral could be connected to
multiple systems, the information that flowed across the interface
was different in each case. This was addressed some five years later
by the definition of a Common Command Set, and with this definition
in place it was possible for the first time to develop a peripheral
with both a common interface and common operating firmware for
connection to multiple systems.
The physical interface of SCSI continued to be developed throughout
the 1980s with the addition of fast (up to 10 megabytes/s) and wide
(16 bits) variants, but the distance supported remained a maximum of
25 meters (from one end of the bus to another), and indeed some of
the faster variants supported much less than that distance. The
command set development continued, with special commands for tapes,
printers, and even processors being added to the original disk-
oriented set. So successful was SCSI in the 1980s that the majority
of the available Operating Systems incorporated support for the SCSI
command set as standard.
However, at the end of the 1980s the distance, speed, and number of
devices supported by SCSI were starting to become significant
impediments to systems design, and although the "information
explosion" had not yet started in earnest, it was already being
anticipated. At the same time, the serial interface technologies
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developed for Local Area Networks such as Ethernet, and the fibre
optics technologies that were first deployed in telecommunications
applications were starting to appear sufficiently rugged and low cost
for use in peripheral interface applications. Thus, a standards
project was begun in 1988 to develop a new serial, fibre-optic
interface to carry the SCSI command sets and other peripheral
protocols. This interface eventually became known as Fibre Channel
(FC), and it is based on an architecture centered around an
abstractly defined "fabric", which may be a switch or a loop
connection. MIB modules for various FC equipments are already in
existence.
In order to support the new interfaces, it was necessary to
completely reorganize the SCSI standards and definitions. The
command sets were separated from the physical interface definitions,
and a SCSI Architectural Model (SAM) was created to define the
interaction between the various standards. It is a key to
understanding SAM to realize that it was first created approximately
10 years AFTER the first SCSI products were shipped!
The most recent development in this saga occurred in 2000 when an
IETF Working Group was formed to address, among other things, a
definition for transporting the SCSI command sets directly over a
TCP/IP infrastructure. This effort is known as iSCSI [RFC3720], and
an iSCSI MIB module is already under development [ISCSI].
Most of the projects are in T10, except Fibre Channel, which is
defined by T11 and IEEE defines 1394.
The SCSI MIB module represents the SCSI protocol layer common to all
SCSI command sets and transports. It does not represent the command
sets and transports themselves. These should appear in other MIB
modules specific to the transport or command set. The following
illustration shows the relationships between the various actual and
possible SCSI-related MIB modules.
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+---------------------------------+
SCSI Command | Higher-level MIBs, specific to |
Sets | command sets, disk, tape, etc. |
+---------------------------------+
SCSI | SCSI MIB |
+-------+---------+-------+-------+
SCSI | iSCSI | FCP | SPI | Other |
Transport | MIB | MIB | MIB | MIBs |
Protocols | | | | |
+-------+---------+-------+-------+
SCSI | TCP | Fibre | Other |
Interconnect | MIB | Channel | Interconnect |
| | MIBs | MIBs |
+-------+---------+---------------+
An iSCSI MIB module [ISCSI] and a Fibre Channel interconnect MIB
module [RFC4044] are currently being developed. No development is
currently planned for standard command-set-specific or device-
specific MIBs.
The TCP-MIB [RFC4022] is already a proposed standard RFC 4022.
3.2. SCSI Terminology
The following sections explain some of the SCSI terminology, which is
used later in defining the MIB module. For the authoritative
definitions of these terms, see SAM-2 [SAM2].
3.2.1. SCSI Application Layer
The protocols and procedures that implement or invoke SCSI commands
and task management functions by using services provided by a SCSI
transport protocol layer.
3.2.2. SCSI Device
A SCSI device is an entity that contains one or more SCSI ports that
are connected to a service delivery subsystem and supports a SCSI
application protocol.
3.2.3. SCSI Port
A SCSI port is a device-resident entity that connects the application
client, device server, or task manager to the service delivery
subsystem through which requests and responses are routed. A SCSI
port is synonymous with port and either a SCSI initiator port or a
SCSI target port.
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3.2.4. SCSI Initiator Device
A SCSI initiator device contains application clients and SCSI
initiator ports that originate device service and task management
requests to be processed by a SCSI target device. When used, this
term refers to SCSI initiator devices or SCSI target/initiator
devices that are using the SCSI target/initiator port as a SCSI
initiator port.
3.2.5. SCSI Initiator Port
A SCSI initiator port acts as the connection between application
clients and the service delivery subsystem through which requests and
responses are routed. In all cases when this term is used, it refers
to an initiator port or a SCSI target/initiator port operating as a
SCSI initiator port.
3.2.6. SCSI Target Device
A SCSI target device contains logical units and SCSI target ports
that receive device service and task management requests for
processing. When used, this term refers to SCSI target devices or
SCSI target/initiator devices that are using the SCSI
target/initiator port as a SCSI target port.
3.2.7. SCSI Target Port
A SCSI target port contains a task router and acts as the connection
between device servers and task managers and the service delivery
subsystem through which requests and responses are routed. When this
term is used, it refers to a SCSI target port or a SCSI
target/initiator port operating as a SCSI target port.
3.2.8. Logical Units
A logical unit is an entity residing in the SCSI target device that
implements a device model and processes SCSI commands sent by an
application client.
3.2.9. Logical Unit Number
A Logical Unit Number or LUN is a 64-bit identifier for a logical
unit.
3.2.10. Interconnect Subsystem
An interconnect subsystem is one or more interconnects that appear as
a single path for the transfer of information between SCSI devices.
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3.2.11. Device Server
A device server is an object within the logical unit that processes
SCSI tasks according to the rules for task management.
3.2.12. Task Manager
A task manager is a server within the SCSI target device that
processes task management functions.
3.2.13. SCSI Instance
A "SCSI instance" is a distinct SCSI entity within a managed system.
Whereas most implementations will have just one SCSI instance, the
MIB module allows for multiple (virtual) instances, such that a large
system can be "partitioned" into multiple, distinct virtual systems.
For example, in a host, it allows multiple vendors' implementations
of the MIB module to co-exist under a single SNMP agent through each
vendor's implementation being a different SCSI instance. It also
allows a single SNMP agent to represent multiple subsystems each of
which has its own SCSI instance.
3.3. SCSI MIB Module Implementation
The SCSI MIB module is a basic building block to use in the various
SCSI management scenarios. This module is intended to be implemented
in every SCSI entity in a managed system. A SCSI entity can be a
SCSI initiator device, SCSI target device or SCSI initiator and
Target device. Since SCSI (storage) networking devices may contain
more than one SCSI entity, it is possible that more than one SCSI
instance will reside in a single device.
In small-scale environments, a single network management station
(NMS) may have SNMP access to both SCSI initiator devices and SCSI
target devices. However, if the SCSI target devices, or virtualized
target devices, are being provided as a service, it is more likely
that the provider of the service owns and manages the SCSI target
devices and that the consumer of the service owns and manages the
SCSI initiator devices. In this case, the service provider NMS and
the consumer NMS may have only allowed SNMP access to the SCSI target
devices and the SCSI initiator devices, respectively.
The figures in this chapter describe the location of the SCSI MIB
module implementations in the various SCSI management scenarios. The
locations of the SCSI SNMP agent implementing the SCSI MIB module are
denoted with '*'.
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+----------+ +---------+
|SCSI | SCSI Transport |SCSI |
|Initiator +---------------------------------------+Target |
|Device | |Device |
| * | | * |
+----------+ +---------+
| |
| |
| |
| |
| |
| SNMP +----------+ SNMP |
+------------------|SCSI |-------------------+
|Management|
| (NMS) |
+----------+
Figure 1. Single SCSI Initiator Device and
Single SCSI Target Device
Figure 1 describes a simple SCSI management scenario of a SCSI
initiator device, a SCSI target device, and a management station. In
this scenario, there are two SNMP agents, each containing its SCSI
instance and its respective objects. As the SCSI target device and
SCSI initiator device are interconnected, their target and initiator
port objects will be complementary.
+-----------+
| +--------+-+ SCSI Transport +---------+
| | SCSI |---------------------------------------+ SCSI |
|* | Initiator+---------------------------------------+ Target |
+--| Device | SCSI Transport | Device |
| | * | | * |
| +----------+ +---------+
| | |
| | |
| | |
| | |
| | |
|SNMP | SNMP +----------+ SNMP |
+-------+------------------|SCSI |-------------------+
|Management|
| (NMS) |
+----------+
Figure 2. Multiple Hosts and a Single Target Device
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Figure 2 adds another SCSI initiator device, to the SCSI network,
which connects to the same SCSI target device. The additional SCSI
initiator device also has an SNMP agent implementing the SCSI MIB
module. In this case, the SCSI target device's MIB module will show
that two SCSI initiator devices are attached to it.
+-----------+ +----------+
| +----------+ +---------------+ +-+-------+ |
| |SCSI |--------------| Virtualization| | SCSI | |
|* |Initiator +--------------| Device +-------+ Target | |
+--|Device | SCSI | | | Device | *|
| | * | | * | | * |--+
| +----------+ Transport +------------+--+ +---------+ |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | SNMP +-----------+ | SNMP | |
+-------+------------------+ SCSI + +-+------------+-------+
| Management|
| (NMS) |
+-----------+
Figure 3. Multiple Hosts, Virtualization Device and Multiple SCSI
Target Devices
Figure 3 adds an in-band virtualization device that encapsulates, and
possibly modifies, the SCSI target devices' representation to the
SCSI Initiator devices. It is common practice for an in-band
virtualization device to include both SCSI target and initiator
device functionality. Therefore, its SCSI MIB module implementation
includes both the SCSI Target device and Initiator device objects.
It should be noted that the Virtualization device might implement
additional proprietary MIB modules, as the SCSI MIB module does not
distinguish between physical and virtual SCSI entities.
3.4. Bridging and Virtualization
Storage virtualization is a concept that abstracts storage resources
in such a way that, storage entities are provided as pool of logical
entities.
Usually, the virtualization process is transparent to the storage
users (i.e., hosts). Virtualization normally affects the SCSI
entities represented to SCSI initiator devices. However, the SCSI
MIB module enables the representation of SCSI entities and their
respective status, including error and performance-monitoring
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statistics. It should be possible to perform a limited number of
configuration modification and diagnostic actions.
The SCSI entities embodied in the bridging and virtualization devices
can be represented by the SCSI MIB module. However, the
configuration of bridging and virtualization devices is beyond the
above-described scope and therefore should be provided through other
MIB modules.
3.5. SCSI Command MIB Module
The management of SCSI commands is beyond the scope of this MIB
module. Future SCSI Command MIB module can link to this MIB module,
through the use of Object Identifiers (OIDs) or INDEX values of
appropriate tables.
4. Structure of the MIB
This MIB module contains fourteen conformance groups:
4.1. The SCSI Device Group
The scsiDeviceGroup group contains the objects general to each SCSI
instance: instance, device, and port objects. It contains also the
objects referring to the transport(s) used by those SCSI instances.
This group is mandatory for all SCSI managed system.
Alias objects are provided for SCSI instances and SCSI devices to
enable administrators to identify them. These objects contain
human-readable administrative text strings, and hence use the
SnmpAdminString textual convention from [RFC3411].
4.2. The Initiator Group
The scsiInitiatorDeviceGroup contains all the managed information
related to a local SCSI initiator device and port. In addition, it
contains the managed objects referring to the monitored attached SCSI
target devices. Any managed system acting as a SCSI initiator or
target/initiator device and port MUST support this group.
4.3. The Target Group
The scsiTargetDeviceGroup contains all the managed objects related to
a local SCSI target device, a local SCSI target port, monitored
attached initiator ports, logical units, and logical unit
identifiers.
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Managed systems acting as a SCSI target or target/initiator device
and port must support this group.
4.4. The Discovery Group
The scsiDiscoveryGroup group is a collection of managed objects
referring to remote SCSI target devices, remote SCSI target ports,
remote logical units, and remote logical unit identifiers discovered
by or configured to a managed system acting as a SCSI initiator
device.
Managed systems acting as a SCSI initiator device and port and
supporting remote SCSI target devices or ports configuration or
discovery should implement this group.
4.5. The LUN Map Group
The scsiLunMapGroup group is a collection of managed objects allowing
mapping between SCSI target devices, logical units, and logical unit
numbers in one side to remote authorized SCSI initiator devices or
ports in another side.
Managed systems supporting this mapping should implement the
scsiLunMapGroup.
4.6. The Target Statistic Group
The scsiTargetDevStatsGroup group is a collection of managed objects
representing various statistics referring to a SCSI target device or
port. Managed systems acting as a SCSI target device and port
supporting statistics should implement this group.
4.7. The Target High Speed Statistic Group
The scsiTargetDevHSStatsGroup group is a collection of managed
objects representing various statistics referring to a SCSI target
device or port. It provides support for systems that can quickly
generate countable information because they run at high speed.
Managed systems acting as a SCSI target device and port and running
at high speed supporting should implement this group.
4.8. The LUN Map Statistics Group
The scsiLunMapStatsGroup group is a collection of managed objects
representing various statistics referring to remote authorized SCSI
initiator devices or ports.
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Managed systems acting as a SCSI target device and port and able to
gather statistics on remote SCSI initiator devices or ports should
implement this group.
4.9. The LUN Map Statistics High Speed Group
The scsiLunMapHSStatsGroup group is a collection of managed objects
representing various statistics referring to remote authorized SSCI
initiator devices or ports. It provides support for systems that can
quickly generate countable information because they run at high
speed.
Managed systems acting as a SCSI target device and port and able to
gather statistics on remote SCSI initiator devices or ports and
running at high speed should implement this group.
4.10. The Initiator Statistics Group
The scsiInitiatorDevStatsGroup group is a collection of managed
objects representing various statistics referring to a SCSI initiator
device or port.
Managed systems acting as a SCSI initiator device and port supporting
statistics should implement this group.
4.11. The Initiator High Speed Statistic Group
The scsiInitiatorDevHSStatsGroup group is a collection of managed
objects representing various statistics referring to a SCSI initiator
device or port. It provides support for systems that can quickly
generate countable information because they run at high speed.
Managed systems acting as a SCSI initiator device and port and
running at high speed supporting should implement this group.
4.12. The Discovery Statistics Group
The scsiDiscoveryStatsGroup group is a collection of managed objects
representing various statistics referring to remote discovered or
configured SCSI target devices or ports.
Managed systems acting as a SCSI initiator device and port and able
to gather statistics on remote SCSI target devices or ports should
implement this group.
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4.13. The Discovery Statistics High Speed Group
The scsiDiscoveryHSStatsGroup group is a collection of managed
objects representing various statistics referring to remote
discovered or configured SCSI target devices or ports. It provides
support for systems that can quickly generate countable information
because they run at high speed.
Managed systems acting as a SCSI initiator device and port and able
to gather statistics on remote SCSI target devices or ports and
running at high speed should implement this group.
4.14. The Device Statistics Group
The scsiDeviceStatGroup group is a collection of managed objects
representing various statistics referring to a SCSI device.
Managed systems able to gather device statistics should implement
this group.
5. Relationships in This MIB
This section outlines the functionality and the dependency between
the MIB tables providing the required management functionality for
SCSI initiator and target devices. For specific usage of these
tables, the reader should refer to the description of the tables and
their respective table entries and attributes.
Following is a list of required SCSI initiator-related features, and
the respective tables facilitating this functionality:
o List all the SCSI initiator ports that should be managed through
this MIB module. The table scsiIntrPortTable maintains all the
SCSI initiator ports for the SCSI initiator devices in the MIB
module.
o Provide a list of all SCSI target ports or SCSI target devices to
which a SCSI initiator port can attach. This should prevent a
SCSI initiator device or port from attaching to SCSI target
devices that should be either invisible or inaccessible to it.
The entries in this list can be created either manually or by
automatic discovery mechanisms (e.g., SLP, iSNS). The
ScsiDscTgtTable provides this information. The entries in this
table point to the SCSI initiator port, and indicate that the SCSI
initiator port can only attach to SCSI target ports or SCSI target
devices provided in the respective entries of the ScsiDscTgtTable.
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This MIB module permits, but does not require, this table to be
written via SNMP. There are significant security considerations
in allowing writes to this table; see Section 11.
o The information, for the aforementioned SCSI target ports or SCSI
target devices, about the LUs and their respective LUN Ids should
be provided. The scsiDscLunTable and scsiDscLunIdTable maintain
this information.
o The scsiAttTgtPortTable provides the information about the SCSI
target ports each SCSI initiator port is currently communicating
with. This table should be dynamically updated to reflect those
connections.
Following is a list of required SCSI target device-related features,
and the respective tables facilitating this functionality:
o List all the SCSI target ports that should be managed through this
MIB module. The table scsiTgtPortTable maintains all the SCSI
target ports for the SCSI target devices in the MIB module.
o Provide a list of valid SCSI initiator ports or SCSI initiator
devices authorized to attach to a SCSI target port. This list
should feature the concept of "access lists", which are common in
IP routers and switches. The ScsiAuthorizedIntr table provides
this information. This MIB module permits, but does not require
this table to be written via SNMP. There are significant security
considerations in allowing writes to this table; see Section 11.
o It should be possible to specify the list of LUNs exposed to each
SCSI initiator port or device, when it is attached to the SCSI
target device. SCSI target devices must provide a default list of
LUNs. This list of LUNs can either be a unique list for each SCSI
initiator device or be the default list. For each entry in the
ScsiAuthorizedIntr table, a pointer, named
scsiAuthIntrLunMapIndex, indexing the ScsiLunMapTable facilitates
this feature.
o Provide means to monitor all the SCSI initiator ports currently
attached to this SCSI target port. The scsiAttIntrPortTable
provides this information. This table should be dynamically
updated to reflect those connections.
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6. Relationship to Other MIBs
6.1. Host Resource MIB
The SCSI MIB module extends objects defined in the host resource MIB
module to SCSI-specific entities but does not contain information on
software modules such as device drivers. If MIB objects are required
for installed packages of SCSI software, then the hrSWInstalledGroup
of the Host Resources MIB [RFC2790] are the standard MIB objects to
use.
6.2. iSCSI MIB Module
The SCSI MIB module defines managed objects for the SCSI protocol
layer. The SCSI layer can run on top of several transport layers;
iSCSI is one of them. The ISCSI-MIB [ISCSI] is the MIB portion
defining the managed objects for the transport called iSCSI. In the
same way, a fibre channel or parallel SCSI MIB module would define
managed objects for a transport called, respectively, fibre channel
or parallel SCSI.
The relationship between the SCSI MIB module and any valid transport
MIB module is determined via the SCSI port managed table that has an
object pointing to the corresponding row, if any, of the relevant
table in a transport MIB module.
7. Miscellaneous Details
7.1. Names and Identifiers
The names and the identifiers of the SCSI devices, ports, and logical
units depend on the underlying transport protocols; their format and
length vary accordingly. Please refer to SAM-2 [SAM2] for more
details.
7.2. Logical Unit Number
The Logical Unit Number is a 64-bit integer. This type does not
exist in SMI and therefore, this MIB contains a textual convention
defining LUN as an OCTET STRING.
7.3. Notifications
Separate SNMP notifications may be enabled/disabled to notify of a
change in any of the SCSI device status variables. A notification
will be generated theoretically for each occurrence (see restriction
Hallak-Stamler, et al. Standards Track [Page 16]
RFC 4455 SCSI MIB April 2006
below) of the abnormal status (e.g., if the SCSI device's current
status is abnormal and another logical unit changes its status from
available to abnormal another notification will occur).
To avoid sending an excessive number of notifications due to multiple
errors counted, an SNMP agent implementing the SCSI MIB module should
not send more than three SCSI notifications in any 10-second period.
The 3-in-10 rule was chosen because one notification every three
seconds was deemed often enough, but if and when two or three
different notifications happen at the same time, it would not be
desirable to suppress them. Three notifications in 10 seconds is a
happy medium, where a short burst of notifications is allowed,
without inundating the network and/or destination host with a large
number of notifications.
The ultimate control on sending of notifications is in command of the
notification generator module specified in [RFC3413].
7.4. SCSI Domains
SAM-2 [SAM2] specifies that devices belong to a domain. However, it
is not usually possible to determine this from within a system, so
domains are not represented within this MIB module.
7.5. Counters: 32 Bits and 64 Bits
Some counters, in (newer) high-performance systems, can increase at a
fast enough rate such that their representation as Counter32s can
cause them to "wrap" in less than an hour. The SMIv2 provides
Counter64 as the syntax for such counters. However, (older) SNMPv1
implementations cannot support Counter64s. Thus, this MIB module
defines such counters as both Counter32s and Counter64's.
The counters in this MIB module that count data are defined in terms
of megabytes (i.e., as the number of megabytes of data), such that
Counter64s are not required.
However, the counters in this MIB module that count commands, when in
use at 5 GBit/second with 512-byte read/write operations, could wrap
within an hour. Therefore, each of these counters will be defined as
both a Counter32 and a Counter64, with the latter being mandatory,
for system speeds of 4 Gbit/second or higher.
A possible (but not required) implementation strategy is to have the
value of each Counter32 be the same value as the low-order 32 bits of
the corresponding Counter64.
Hallak-Stamler, et al. Standards Track [Page 17]
RFC 4455 SCSI MIB April 2006
7.6. Local versus Remote Entities
This MIB module qualifies often SCSI entities as local or remote.
The local entities are the ones for which the agent is reporting.
The remote entities are the ones that the local entities are in
communication with via the SCSI protocol.
8. Abbreviations
This MIB module will use the following abbreviations:
Inst = Instance
Dev = SCSI Device
Tgt = SCSI Target Device
Intr = SCSI Initiator Device
Att = Attached
Id = Identifier
Dsc = Discovered
pSCSI = Parallel SCSI
9. Object Definitions
SCSI-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-IDENTITY, OBJECT-TYPE,
NOTIFICATION-TYPE, Integer32, Unsigned32, Counter32,
Counter64, Gauge32,
mib-2 FROM SNMPv2-SMI
TEXTUAL-CONVENTION, TimeStamp, TruthValue,
RowStatus, RowPointer, AutonomousType,
StorageType FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP FROM SNMPv2-CONF
SnmpAdminString FROM SNMP-FRAMEWORK-MIB;
scsiMIB MODULE-IDENTITY
LAST-UPDATED "200603300000Z" -- 30th March 2006
ORGANIZATION "IETF"
CONTACT-INFO "
Michele Hallak-Stamler
Hallak-Stamler, et al. Standards Track [Page 18]
RFC 4455 SCSI MIB April 2006
Sanrad Intelligent Network
27 Habarzel Street
Tel Aviv, Israel
Phone: +972 3 7674809
E-mail: michele@sanrad.com
Yaron Lederman
Siliquent Technologies Ltd.
21 Etzel Street
Ramat Gan, Israel
Phone: +972 54 5308833
E-mail: yaronled@bezeqint.net
Mark Bakke
Postal: Cisco Systems, Inc
7900 International Drive, Suite 400
Bloomington, MN
USA 55425
E-mail: mbakke@cisco.com
Marjorie Krueger
Postal: Hewlett-Packard
8000 Foothills Blvd.
Roseville, CA 95747
E-mail: marjorie_krueger@hp.com
Keith McCloghrie
Cisco Systems, Inc.
Postal: 170 West Tasman Drive
San Jose, CA USA 95134
Phone: +1 408 526-5260
E-mail: kzm@cisco.com
"
DESCRIPTION
"The SCSI MIB Module.
Copyright (C) The Internet Society (2006). This version of
this MIB module is part of RFC 4455; see the RFC
itself for full legal notices."
-- Revision History
REVISION "200603300000Z"
DESCRIPTION " Initial version published as RFC 4455."
::= { mib-2 139}
--****************** Textual Conventions **************************
ScsiLUN ::= TEXTUAL-CONVENTION
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RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This textual convention represents a SCSI Logical Unit
Number (LUN). The format of a LUN is documented in Tables
A.2 and A.3 of SAM-2 [SAM2]."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002 - Annex A [SAM2]"
SYNTAX OCTET STRING (SIZE ( 2 | 8))
ScsiIndexValue ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An arbitrary integer value, greater than zero, for use
as a unique index value."
SYNTAX Unsigned32 (1..4294967295)
ScsiPortIndexValueOrZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention is an extension of the ScsiIndexValue
convention. The latter defines a greater than zero value used
to identify an index. This extension permits the additional
value of zero and is applicable only to indices of SCSI port.
Usage of the zero is object-specific and must therefore be
defined as part of the description of any object that uses
this syntax. Examples of the usage of zero might include
situations where the index was unknown, or when none or all
indices need to be referenced."
SYNTAX Unsigned32 (0..4294967295)
ScsiIndexValueOrZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention is an extension of the ScsiIndexValue
convention. The latter defines a greater than zero value used
to identify an index. This extension permits the additional
value of zero. Usage of the zero is object-specific and must
therefore be defined as part of the description of any object
that uses this syntax. Examples of the usage of zero might
include situations where index was unknown, or when none or
all indices need to be referenced."
SYNTAX Unsigned32 (0..4294967295)
ScsiIdentifier ::= TEXTUAL-CONVENTION
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RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This textual convention represents a generic SCSI port
identifier.
The format depends on the transport used and is documented
in Tables A.2 and A.3 of SAM-2 [SAM2]."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002 - Annex A [SAM2]"
SYNTAX OCTET STRING (SIZE (0..262))
ScsiName ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This textual convention represents the name of a SCSI
initiator device, a SCSI target device, a SCSI initiator port
or a SCSI target port.
The format depends on the transport used and is documented
in Tables A.4 and A.5 of SAM-2 [SAM2].
Every object defined using this syntax must define whether it
is
a) always used for a port,
b) always used for a device, or
c) the circumstances under which it is used for a port or
device."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002 - Annex A [SAM2]"
SYNTAX OCTET STRING (SIZE (0..262))
ScsiLuNameOrZero ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This textual convention represents either the name of a SCSI
logical unit or a zero-length string. Objects defined with
this syntax must specify the meaning of the zero-length
string.
The format of the name of a LU is defined as:
- a zero-length octet string or
- a string of eight bytes."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002 - Annex A [SAM2]"
SYNTAX OCTET STRING (SIZE (0 | 8))
ScsiDeviceOrPort ::= TEXTUAL-CONVENTION
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RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This type specifies whether a particular configuration is
applicable to a port or to a device."
SYNTAX INTEGER {
device(1),
port(2),
other(3)
}
ScsiIdCodeSet ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention specifies the code set for the
identifier contained in an Identification Descriptor returned
in a logical unit's Device Identification Page, and is
formatted as defined in T10 SPC-2 (see REFERENCE) Table 172 -
Code Set"
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
SYNTAX Unsigned32 (0..15)
ScsiIdAssociation ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention specifies what the identifier is
associated with (e.g., with the addressed physical/logical
device or with a particular port) for the identifier
contained in an Identification Descriptor returned in a
logical unit's Device Identification Page, and is
formatted as defined in T10 SPC-2 (see REFERENCE)
Table 173 - Association."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
SYNTAX Unsigned32 (0..3)
ScsiIdType ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention specifies the type for the identifier
contained in an Identification Descriptor returned in a
Hallak-Stamler, et al. Standards Track [Page 22]
RFC 4455 SCSI MIB April 2006
logical unit's Device Identification Page, and is formatted
as defined in T10 SPC-2 (see REFERENCE) table 174 - Identifier
Type."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
SYNTAX Unsigned32 (0..15)
ScsiIdValue ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This textual convention represents an identifier. The objects
of type ScsiIdCodeSet, ScsiIdAssociation, ScsiIdType define
together the format.
The format is the same as contained in an Identification
Descriptor returned in a logical unit's Device Identification
Page, and is formatted as defined in T10 SPC-2
(see REFERENCE)."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
SYNTAX OCTET STRING (SIZE (0..255))
ScsiHrSWInstalledIndexOrZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The index value for a software module's row in the Host
Resources MIBs hrSWInstalledTable. A zero value indicates
that no row in the hrSWInstalledTable is applicable."
REFERENCE
"hrSWInstalledTable is defined in the Host Resources MIB,
[RFC2790]."
SYNTAX Integer32 (0..2147483647)
--****************** Structure of the MIB **************************
scsiNotifications OBJECT IDENTIFIER ::= { scsiMIB 0 }
scsiAdmin OBJECT IDENTIFIER ::= { scsiMIB 1 }
scsiObjects OBJECT IDENTIFIER ::= { scsiMIB 2 }
scsiConformance OBJECT IDENTIFIER ::= { scsiMIB 3 }
scsiTransportTypes OBJECT IDENTIFIER ::= { scsiAdmin 1 }
scsiGeneral OBJECT IDENTIFIER ::= { scsiObjects 1 }
scsiInitiatorDevice OBJECT IDENTIFIER ::= { scsiObjects 2 }
scsiTargetDevice OBJECT IDENTIFIER ::= { scsiObjects 3 }
Hallak-Stamler, et al. Standards Track [Page 23]
RFC 4455 SCSI MIB April 2006
scsiLogicalUnit OBJECT IDENTIFIER ::= { scsiObjects 4 }
--****************** Transport Types *******************************
-- The following object identifiers allow determining the different
-- transports (service delivery subsystems) in use under the SCSI
-- layer.
scsiTransportOther OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies a transport that has no identity; it
might happen because the transport is unknown or might not
have been defined when this MIB module was created."
::= { scsiTransportTypes 1 }
scsiTransportSPI OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies a parallel SCSI transport."
REFERENCE
"T10 - SCSI Parallel Interface - 4 (SPI-4)
- ANSI INCITS 362-2002 [SPI4]"
::= { scsiTransportTypes 2 }
scsiTransportFCP OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies a Fibre Channel Protocol for SCSI,
Second Version."
REFERENCE
"T10 - SCSI Fibre Channel Protocol - 2 (FCP-2)
- ANSI INCITS 350-2003 [FCP2]"
::= { scsiTransportTypes 3 }
scsiTransportSRP OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies a protocol for transporting SCSI over
Remote Direct Memory Access (RDMA) interfaces, e.g., InfiniBand
(tm)."
REFERENCE
"T10 - SCSI RDMA Protocol (SRP)
- ANSI INCITS 365-2002 [SRP]."
::= { scsiTransportTypes 4 }
scsiTransportISCSI OBJECT-IDENTITY
STATUS current
DESCRIPTION
Hallak-Stamler, et al. Standards Track [Page 24]
RFC 4455 SCSI MIB April 2006
"This identity identifies an iSCSI transport."
REFERENCE
"IETF IPS WG - Internet Small Computer Systems Interface
(iSCSI) [RFC3720] "
::= { scsiTransportTypes 5 }
scsiTransportSBP OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies the Serial Bus Protocol 3."
REFERENCE
"T10 - Serial Bus Protocol 3 (SBP-3)
- ANSI INCITS 375-2004 [SBP3]."
::= { scsiTransportTypes 6 }
scsiTransportSAS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"This identity identifies the Serial Attach SCSI Protocol."
REFERENCE
"T10 - Serial Attached SCSI - 1.1 (SAS - 1.1)
- #1601-D Rev-10 [SAS-1.1]."
::= { scsiTransportTypes 7 }
--****************** Instance Table *****************************
scsiInstanceTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiInstanceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of SCSI instances present on the system.
The SCSI instance is the top-level entity, to which everything
else belongs. An SNMP agent could represent more than one
instance if it represents either a stack of devices, or virtual
partitions of a larger device, or a host running multiple SCSI
implementations from different vendors."
::= { scsiGeneral 1 }
scsiInstanceEntry OBJECT-TYPE
SYNTAX ScsiInstanceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing management information applicable to
a particular SCSI instance."
INDEX { scsiInstIndex }
::= { scsiInstanceTable 1 }
Hallak-Stamler, et al. Standards Track [Page 25]
RFC 4455 SCSI MIB April 2006
ScsiInstanceEntry ::= SEQUENCE {
scsiInstIndex ScsiIndexValue,
scsiInstAlias SnmpAdminString,
scsiInstSoftwareIndex ScsiHrSWInstalledIndexOrZero,
scsiInstVendorVersion SnmpAdminString,
scsiInstScsiNotificationsEnable TruthValue,
scsiInstStorageType StorageType
}
scsiInstIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object represents an arbitrary integer used to uniquely
identify a particular SCSI instance."
::= { scsiInstanceEntry 1 }
scsiInstAlias OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..79))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object represents an administrative string, configured by
the administrator. It can be a zero-length string."
::= { scsiInstanceEntry 2 }
scsiInstSoftwareIndex OBJECT-TYPE
SYNTAX ScsiHrSWInstalledIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If this management instance corresponds to an installed
software module, then this object's value is the value of the
hrSWInstalledIndex of that module. If there is no
correspondence to an installed software module (or no module
that has an hrSWInstalledIndex value), then the value of this
object is zero."
REFERENCE
"hrSWInstalledIndex is defined in the Host Resources MIB,
[RFC2790]."
::= { scsiInstanceEntry 3 }
scsiInstVendorVersion OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Hallak-Stamler, et al. Standards Track [Page 26]
RFC 4455 SCSI MIB April 2006
"This object represents a text string set by the manufacturer
describing the version of this instance. The format of this
string is determined solely by the manufacturer and is for
informational purposes only. It is unrelated to the SCSI
specification version numbers."
::= { scsiInstanceEntry 4 }
scsiInstScsiNotificationsEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates whether notifications defined in this
MIB module will be generated."
DEFVAL { true }
::= { scsiInstanceEntry 5 }
scsiInstStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the memory realization for
this SCSI entity.
Specifically, each row in the following tables:
scsiIntrDevTable
scsiDscTgtTable
scsiAuthorizedIntrTable
scsiLunMapTable
has a StorageType as specified by the instance of
this object that is INDEXed by the same value of
scsiInstIndex.
This value of this object is also used to indicate
the persistence across reboots of writable values in
its row of the scsiInstanceTable.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row,
nor to any object belonging to a table whose entry is
INDEXed by the same value of scsiInstIndex."
DEFVAL { nonVolatile }
::= { scsiInstanceEntry 6 }
--******************** Device Table ********************************
scsiDeviceTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiDeviceEntry
Hallak-Stamler, et al. Standards Track [Page 27]
RFC 4455 SCSI MIB April 2006
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of SCSI devices contained in each of the SCSI manageable
instances that this agent is reporting."
::= { scsiGeneral 2 }
scsiDeviceEntry OBJECT-TYPE
SYNTAX ScsiDeviceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing management information applicable to
a particular SCSI device included in this SCSI manageable
instance identifiable by the value of scsiInstIndex."
INDEX {scsiInstIndex, scsiDeviceIndex}
::= { scsiDeviceTable 1 }
ScsiDeviceEntry ::= SEQUENCE {
scsiDeviceIndex ScsiIndexValue,
scsiDeviceAlias SnmpAdminString,
scsiDeviceRole BITS,
scsiDevicePortNumber Unsigned32
}
scsiDeviceIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary integer used to uniquely identify
a particular device within a particular SCSI instance."
::= { scsiDeviceEntry 1 }
scsiDeviceAlias OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..79))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object contains an administrative name for this device.
If no name is assigned, the value of this object is the
zero-length string.
The StorageType of this object is specified by the instance
of scsiInstStorageType that is INDEXed by the same value of
scsiInstIndex."
::= { scsiDeviceEntry 2 }
scsiDeviceRole OBJECT-TYPE
Hallak-Stamler, et al. Standards Track [Page 28]
RFC 4455 SCSI MIB April 2006
SYNTAX BITS {
target(0),
initiator(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object determines whether this device is acting as a
SCSI initiator device, or as a SCSI target device, or as both."
::= { scsiDeviceEntry 3 }
scsiDevicePortNumber OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of ports contained in this
device."
::= { scsiDeviceEntry 4 }
--****************** Port Table ************************************
scsiPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of SCSI ports for each SCSI device in each instance."
::= { scsiGeneral 3 }
scsiPortEntry OBJECT-TYPE
SYNTAX ScsiPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing management information applicable to
a particular SCSI port of a particular SCSI device in a
particular SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiPortIndex }
::= { scsiPortTable 1 }
ScsiPortEntry ::= SEQUENCE {
scsiPortIndex ScsiIndexValue,
scsiPortRole BITS,
scsiPortTransportPtr RowPointer,
scsiPortBusyStatuses Counter32
}
Hallak-Stamler, et al. Standards Track [Page 29]
RFC 4455 SCSI MIB April 2006
scsiPortIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary integer used to uniquely identify a particular
port of a given device within a particular SCSI instance."
::= { scsiPortEntry 1 }
scsiPortRole OBJECT-TYPE
SYNTAX BITS {
target(0),
initiator(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates whether this port is acting as a
SCSI initiator port, or as a SCSI target port or as both."
::= { scsiPortEntry 2 }
scsiPortTransportPtr OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is a pointer to the corresponding row in the
scsiTransportTable. This row contains information on the
transport such as transport type and port name."
::= { scsiPortEntry 3 }
scsiPortBusyStatuses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of port busy statuses sent or
received by this port. Note: Initiator ports only receive busy
status and SCSI target ports only send busy status.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiPortEntry 4 }
--******************** Table of supported transports ***************
scsiTransportTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiTransportEntry
MAX-ACCESS not-accessible
Hallak-Stamler, et al. Standards Track [Page 30]
RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This table contains the device transport-specific information
for each transport connected to each device in
scsiDeviceTable."
::= { scsiGeneral 5 }
scsiTransportEntry OBJECT-TYPE
SYNTAX ScsiTransportEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing parameters applicable to a transport
used by a particular device of a particular SCSI manageable
instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiTransportIndex}
::= { scsiTransportTable 1 }
ScsiTransportEntry ::= SEQUENCE {
scsiTransportIndex ScsiIndexValue,
scsiTransportType AutonomousType,
scsiTransportPointer RowPointer,
scsiTransportDevName ScsiName
}
scsiTransportIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary integer used to uniquely identify a particular
transport within a given device within a particular SCSI
instance."
::= { scsiTransportEntry 1 }
scsiTransportType OBJECT-TYPE
SYNTAX AutonomousType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object identifies the transport type of this row of the
transport table. For example, if this object has the value
scsiTransportFCP, then the identified transport is FCP."
::= { scsiTransportEntry 2 }
scsiTransportPointer OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-only
Hallak-Stamler, et al. Standards Track [Page 31]
RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This object represents a pointer to a conceptual row in a
'transport' MIB module allowing a manager to get useful
information for the transport described by this entry.
For example, if the transport of this device is iSCSI, this
object will point to the iSCSI Instance of the iSCSI MIB
module.
If there is no MIB for this transport, this object has the
value 0.0."
::= { scsiTransportEntry 3 }
scsiTransportDevName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the name of this device in one of the
format(s) appropriate for this type of transport."
::= { scsiTransportEntry 4 }
--******************** SCSI Initiator Device Table ***************
scsiIntrDevTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiIntrDevEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information for each local SCSI initiator
device in each instance."
::= { scsiInitiatorDevice 1}
scsiIntrDevEntry OBJECT-TYPE
SYNTAX ScsiIntrDevEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing information applicable to a SCSI
initiator device within a particular SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex }
::= { scsiIntrDevTable 1 }
ScsiIntrDevEntry ::= SEQUENCE {
scsiIntrDevTgtAccessMode INTEGER,
scsiIntrDevOutResets Counter32
}
scsiIntrDevTgtAccessMode OBJECT-TYPE
SYNTAX INTEGER {
Hallak-Stamler, et al. Standards Track [Page 32]
RFC 4455 SCSI MIB April 2006
unknown(1),
autoEnable(2),
manualEnable(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object controls whether or not a discovered SCSI target
device is immediately authorized:
- autoEnable (2) means that when a SCSI initiator device
discovers a SCSI target device, it can use it immediately.
- manualEnable (3) means that the SCSI initiator device
must wait for an operator to set scsiIntrDscTgtConfigured
= true before it is authorized.
The StorageType of this object is specified by the instance
of scsiInstStorageType that is INDEXed by the same value of
scsiInstIndex."
::= { scsiIntrDevEntry 1 }
scsiIntrDevOutResets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the total number of times that this SCSI
initiator device has issued
- a LOGICAL UNIT RESET or TARGET RESET task management request,
or
- any other SCSI transport protocol-specific action or event
that causes a Logical Unit Reset or a Hard Reset at one or
more SCSI target ports ([SAM2] chapters 5.9.6, 5.9.7).
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002
Chapters 5.9.6 & 5.9.7 [SAM2]"
::= { scsiIntrDevEntry 2 }
-- The following section describes managed objects related to
-- SCSI initiator ports.
scsiIntrPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiIntrPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
Hallak-Stamler, et al. Standards Track [Page 33]
RFC 4455 SCSI MIB April 2006
"This table contains all the SCSI initiator ports for each
local SCSI initiator or target/initiator devices in each SCSI
instance."
::= { scsiInitiatorDevice 2 }
scsiIntrPortEntry OBJECT-TYPE
SYNTAX ScsiIntrPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing information applicable to a
particular SCSI initiator port of a particular SCSI device
within a SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiPortIndex }
::= { scsiIntrPortTable 1 }
ScsiIntrPortEntry ::= SEQUENCE {
scsiIntrPortName ScsiName,
scsiIntrPortIdentifier ScsiIdentifier,
scsiIntrPortOutCommands Counter32,
scsiIntrPortWrittenMegaBytes Counter32,
scsiIntrPortReadMegaBytes Counter32,
scsiIntrPortHSOutCommands Counter64
}
scsiIntrPortName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the name of the port assigned for use
by the SCSI protocol. The format will depend on the type of
transport this port is using."
::= { scsiIntrPortEntry 1 }
scsiIntrPortIdentifier OBJECT-TYPE
SYNTAX ScsiIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the identifier of the port in one of
the format(s) appropriate for the type of transport in use."
::= { scsiIntrPortEntry 2 }
scsiIntrPortOutCommands OBJECT-TYPE
SYNTAX Counter32
UNITS "commands"
Hallak-Stamler, et al. Standards Track [Page 34]
RFC 4455 SCSI MIB April 2006
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands sent by this
SCSI initiator port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiIntrPortEntry 3 }
scsiIntrPortWrittenMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the amount of data in megabytes sent
by this SCSI initiator port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiIntrPortEntry 4 }
scsiIntrPortReadMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the amount of data in megabytes
received by this SCSI initiator port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiIntrPortEntry 5 }
scsiIntrPortHSOutCommands OBJECT-TYPE
SYNTAX Counter64
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands sent by this
SCSI initiator port. This object provides support for systems
that can quickly generate a large number of commands because
they run at high speed.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiIntrPortEntry 6 }
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RFC 4455 SCSI MIB April 2006
--******************** Discovered SCSI Target Device group ********
scsiRemoteTgtDev OBJECT IDENTIFIER ::= { scsiInitiatorDevice 3 }
-- SCSI target device discovered or authorized to attach each of the
-- SCSI initiator ports of each SCSI initiator device of each
-- instance.
scsiDscTgtTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiDscTgtEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the remote (not in the local system)
SCSI target ports that are authorized to attach to each local
SCSI initiator port of this SCSI instance."
::= { scsiRemoteTgtDev 1 }
scsiDscTgtEntry OBJECT-TYPE
SYNTAX ScsiDscTgtEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry (row) contains information about the SCSI target
device or port to which this SCSI initiator port (or all SCSI
initiator ports in the SCSI initiator entry indexed by
scsiInstIndex, scsiDeviceIndex) will attempt to attach. The
entry is either for all local ports (if scsiDscTgtIntrPortIndex
is zero) or only for the specific SCSI initiator port
identified by scsiDscTgtIntrPortIndex. Note that if an entry in
this table is deleted, any corresponding entries in the
scsiDscLunsTable must be deleted as well.
The StorageType of a row in this table is specified by the
instance of scsiInstStorageType that is INDEXed by the same
value of scsiInstIndex."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiDscTgtIntrPortIndex,
scsiDscTgtIndex }
::= { scsiDscTgtTable 1 }
ScsiDscTgtEntry ::= SEQUENCE {
scsiDscTgtIntrPortIndex ScsiPortIndexValueOrZero,
scsiDscTgtIndex ScsiIndexValue,
scsiDscTgtDevOrPort ScsiDeviceOrPort,
scsiDscTgtName ScsiName,
scsiDscTgtConfigured TruthValue,
scsiDscTgtDiscovered TruthValue,
scsiDscTgtInCommands Counter32,
scsiDscTgtWrittenMegaBytes Counter32,
scsiDscTgtReadMegaBytes Counter32,
Hallak-Stamler, et al. Standards Track [Page 36]
RFC 4455 SCSI MIB April 2006
scsiDscTgtHSInCommands Counter64,
scsiDscTgtLastCreation TimeStamp,
scsiDscTgtRowStatus RowStatus
}
scsiDscTgtIntrPortIndex OBJECT-TYPE
SYNTAX ScsiPortIndexValueOrZero
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object relates to a particular local device within a
particular SCSI instance and specifies
- the index of the local SCSI initiator port,
- or zero, if this entry refers to the local device and
therefore refers to all the local SCSI initiator ports."
::= { scsiDscTgtEntry 1 }
scsiDscTgtIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary integer used to uniquely identify
a particular SCSI target device either discovered by, or
configured for use with, one or more ports scsiDscTgtName of
a particular device within a particular SCSI instance."
::= { scsiDscTgtEntry 2 }
scsiDscTgtDevOrPort OBJECT-TYPE
SYNTAX ScsiDeviceOrPort
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicates whether this entry describes a
configured SCSI target device name (and applies to all ports
on the identified SCSI target device) or an individual SCSI
target port."
::= { scsiDscTgtEntry 3 }
scsiDscTgtName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents the name of this configured or
discovered SCSI target device or port depending on the value
of scsiDscTgtDevOrPort."
::= { scsiDscTgtEntry 4 }
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RFC 4455 SCSI MIB April 2006
scsiDscTgtConfigured OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object means
-true(1): this entry has been configured by an administrator.
-false(2): this entry has been added from a discovery
mechanism (e.g., SendTargets, SLP, iSNS).
An administrator can modify this value from false to true."
DEFVAL { true }
::= { scsiDscTgtEntry 5 }
scsiDscTgtDiscovered OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object means
-true(1): this entry has been discovered by the SCSI instance
as result of an automatic discovery process.
-false(2):this entry has been added by manual configuration.
This entry is read-only because an administrator cannot change
it.
Note that it is an implementation decision to determine how
long to retain a row with configured=false, such as when the
SCSI target device is no longer visible/accessible to the local
SCSI initiator device."
::= { scsiDscTgtEntry 6 }
scsiDscTgtInCommands OBJECT-TYPE
SYNTAX Counter32
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands received from
this SCSI target port or device.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiDscTgtLastCreation."
::= { scsiDscTgtEntry 7 }
scsiDscTgtWrittenMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
Hallak-Stamler, et al. Standards Track [Page 38]
RFC 4455 SCSI MIB April 2006
DESCRIPTION
"This object represents the amount of megabytes of data sent as
the result of WRITE commands to this SCSI target port or device.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiDscTgtLastCreation."
::= { scsiDscTgtEntry 8 }
scsiDscTgtReadMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the amount of megabytes received as the
result of READ commands to this SCSI target port or device.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiDscTgtLastCreation."
::= { scsiDscTgtEntry 9 }
scsiDscTgtHSInCommands OBJECT-TYPE
SYNTAX Counter64
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands received by this
SCSI target port or device. This object provides support for
system that can quickly generate a large number of commands
because they run at high speed.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiDscTgtLastCreation."
::= { scsiDscTgtEntry 10 }
scsiDscTgtLastCreation OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the value of sysUpTime when this row
was created."
::= { scsiDscTgtEntry 11 }
scsiDscTgtRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
Hallak-Stamler, et al. Standards Track [Page 39]
RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This object allows an administrator to configure dynamically a
new entry in this table via SNMP or eventually delete it.
An administrator is not allowed to delete an entry for which
the value of the object scsiIntrDscTgtDiscovered is equal to
true.
Note that when an entry in this table is deleted, then any
corresponding entries in the scsiDscLunsTable must also be
automatically deleted.
A newly created row cannot be made active until a value has
been set for scsiDscTgtName. In this case, the value of the
corresponding instance of the scsiDscTgtRowStatus column will
stay 'notReady'.
The RowStatus TC [RFC2579] requires that this DESCRIPTION
clause states under which circumstances other objects in this
row can be modified:
The value of this object has no effect on whether other objects
in this conceptual row can be modified."
::= { scsiDscTgtEntry 12 }
--********************** LUNs discovered ***************************
scsiDscLunTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiDscLunEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the remote (not in the local system)
logical unit numbers (LUNs) discovered via each local SCSI
initiator port of each local device within a particular SCSI
instance."
::= { scsiRemoteTgtDev 2 }
scsiDscLunEntry OBJECT-TYPE
SYNTAX ScsiDscLunEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) represents a discovered LUN at a particular
SCSI target device (scsiDscTgtIndex), where the LUN was
discovered by a particular local SCSI initiator device within a
particular SCSI instance, possibly via a particular local
SCSI initiator port.
Note that when an entry in the scsiDscTgtTable is deleted,
all corresponding entries in this table should automatically be
deleted."
Hallak-Stamler, et al. Standards Track [Page 40]
RFC 4455 SCSI MIB April 2006
INDEX { scsiInstIndex, scsiDeviceIndex, scsiDscTgtIntrPortIndex,
scsiDscTgtIndex, scsiDscLunIndex }
::= { scsiDscLunTable 1 }
ScsiDscLunEntry ::= SEQUENCE {
scsiDscLunIndex ScsiIndexValue,
scsiDscLunLun ScsiLUN
}
scsiDscLunIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary integer used to uniquely identify
a particular LUN discovered by a particular SCSI initiator port
or a particular SCSI initiator device within a particular SCSI
instance.
Entries in the scsiDscLunIdTable are associated with a LUN by
having the value of this object in their INDEX."
::= { scsiDscLunEntry 1 }
scsiDscLunLun OBJECT-TYPE
SYNTAX ScsiLUN
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the Logical Unit Number (LUN) of the
discovered logical unit."
::= { scsiDscLunEntry 2 }
--******************** LU Identifiers discovered *******************
scsiDscLunIdTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiDscLunIdEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the known LU identifiers of the remote
(not in the local system) logical units discovered via each
local SCSI initiator port or device of this SCSI instance."
::= { scsiRemoteTgtDev 3 }
scsiDscLunIdEntry OBJECT-TYPE
SYNTAX ScsiDscLunIdEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
Hallak-Stamler, et al. Standards Track [Page 41]
RFC 4455 SCSI MIB April 2006
"An entry (row) represents the LU identifier of a discovered
LUN at a particular SCSI target device (scsiDscTgtIndex), where
the LUN was discovered by a particular local SCSI initiator
device within a particular SCSI instance, possibly via a
particular local SCSI initiator port."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiDscTgtIntrPortIndex,
scsiDscTgtIndex, scsiDscLunIndex, scsiDscLunIdIndex }
::= { scsiDscLunIdTable 1 }
ScsiDscLunIdEntry ::= SEQUENCE {
scsiDscLunIdIndex ScsiIndexValue,
scsiDscLunIdCodeSet ScsiIdCodeSet,
scsiDscLunIdAssociation ScsiIdAssociation,
scsiDscLunIdType ScsiIdType,
scsiDscLunIdValue ScsiIdValue
}
scsiDscLunIdIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary integer used to uniquely identify
a particular LUN identifier discovered by each SCSI initiator
device or particular SCSI initiator port within a particular
SCSI instance."
::= { scsiDscLunIdEntry 1 }
scsiDscLunIdCodeSet OBJECT-TYPE
SYNTAX ScsiIdCodeSet
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the code set in use with this
identifier. The value is represented in the same format as
is contained in the identifier's Identification Descriptor
within the logical unit's Device Identification Page."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
::= { scsiDscLunIdEntry 2 }
scsiDscLunIdAssociation OBJECT-TYPE
SYNTAX ScsiIdAssociation
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Hallak-Stamler, et al. Standards Track [Page 42]
RFC 4455 SCSI MIB April 2006
"This object specifies what the identifier is associated with
(e.g., with the addressed physical/logical device or with a
particular port). The value is represented in the same format
as is contained in the identifier's Identification Descriptor
within the logical unit's Device Identification Page."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
::= { scsiDscLunIdEntry 3 }
scsiDscLunIdType OBJECT-TYPE
SYNTAX ScsiIdType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the type of the identifier.
The value is represented in the same format as is contained in
the identifier's Identification Descriptor within the logical
unit's Device Identification Page."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
::= { scsiDscLunIdEntry 4 }
scsiDscLunIdValue OBJECT-TYPE
SYNTAX ScsiIdValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the actual value of this identifier.
The format is defined by the objects scsiDscLunIdCodeSet,
scsiDscLunIdAssociation, scsiDscLunIdType.
The value is represented in the same format as is contained in
the identifier's Identification Descriptor within the logical
unit's Device Identification Page."
REFERENCE
"ANSI - SCSI Primary Commands - 2 (SPC-2),
ANSI INCITS 351-2001, 11 July 2001 Chapter 8: section 8.4.4,
Vital Product Data Parameters [SPC2]"
::= { scsiDscLunIdEntry 5 }
--***** Table of SCSI Target Device Attached to local SCSI
--***** Initiator Ports
scsiAttTgtPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiAttTgtPortEntry
MAX-ACCESS not-accessible
Hallak-Stamler, et al. Standards Track [Page 43]
RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This table includes all the remote (not in the local system)
SCSI target ports that are currently attached to each local
SCSI initiator port of this SCSI instance."
::= { scsiRemoteTgtDev 4 }
scsiAttTgtPortEntry OBJECT-TYPE
SYNTAX ScsiAttTgtPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) represents a remote SCSI target port
(scsiAttTgtPortIndex) currently attached to a particular
SCSI initiator port (scsiPortIndex) of a particular SCSI
initiator device within a particular SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiPortIndex,
scsiAttTgtPortIndex }
::= { scsiAttTgtPortTable 1 }
ScsiAttTgtPortEntry ::= SEQUENCE {
scsiAttTgtPortIndex ScsiIndexValue,
scsiAttTgtPortDscTgtIdx ScsiIndexValueOrZero,
scsiAttTgtPortName ScsiName,
scsiAttTgtPortIdentifier ScsiIdentifier
}
scsiAttTgtPortIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary integer used to uniquely identify a particular
SCSI target currently attached to a particular SCSI initiator
port of a particular SCSI initiator device within a particular
SCSI instance."
::= { scsiAttTgtPortEntry 1 }
scsiAttTgtPortDscTgtIdx OBJECT-TYPE
SYNTAX ScsiIndexValueOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the value of the scsiDscTgtIntrPortIndex
index variable for the row in the scsiDscTgtTable representing
this currently attached SCSI target port. If the currently
attached SCSI target port is not represented in the
scsiDscTgtTable, then the value of this object is zero."
Hallak-Stamler, et al. Standards Track [Page 44]
RFC 4455 SCSI MIB April 2006
::= { scsiAttTgtPortEntry 2 }
scsiAttTgtPortName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the name of the attached SCSI target
port."
::= { scsiAttTgtPortEntry 3 }
scsiAttTgtPortIdentifier OBJECT-TYPE
SYNTAX ScsiIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the identifier of the attached SCSI
target port."
::= { scsiAttTgtPortEntry 4 }
-- *****************************************************************
-- ***** Table of SCSI Target devices
--
scsiTgtDevTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiTgtDevEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about each local SCSI target
device."
::= { scsiTargetDevice 1 }
scsiTgtDevEntry OBJECT-TYPE
SYNTAX ScsiTgtDevEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing information applicable to a
particular local SCSI target device within a particular SCSI
instance."
INDEX { scsiInstIndex, scsiDeviceIndex }
::= { scsiTgtDevTable 1 }
ScsiTgtDevEntry ::= SEQUENCE {
scsiTgtDevNumberOfLUs Gauge32,
scsiTgtDeviceStatus INTEGER,
scsiTgtDevNonAccessibleLUs Gauge32,
scsiTgtDevResets Counter32
Hallak-Stamler, et al. Standards Track [Page 45]
RFC 4455 SCSI MIB April 2006
}
scsiTgtDevNumberOfLUs OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is the number of logical units accessible via this
local SCSI target device."
::= { scsiTgtDevEntry 1 }
scsiTgtDeviceStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
available(2),
broken(3),
readying(4),
abnormal(5),
nonAddrFailure(6),
nonAddrFailReadying(7),
nonAddrFailAbnormal(8)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the status of this SCSI device,
summarizing the state of both the addressable devices (i.e.,
the logical units) and the non-addressable devices within this
SCSI device:
- unknown(1): This value is used when the status cannot be
determined
- available(2): All addressable and non-addressable
devices within the SCSI device are fully operational (i.e.,
no logical units have an abnormal status).
- broken(3): The SCSI device is not operational and cannot
be made operational without external intervention.
- readying(4): One or more logical units within the SCSI
device are being initialized and access to the SCSI device
is temporarily limited (i.e., one or more of the logical
units have a readying status).
- abnormal(5): One or more addressable devices within the
SCSI device are indicating a status other than available;
nevertheless, the SCSI device is operational (i.e., one or
more of the logical units have an abnormal status).
- nonAddrFailure(6): One or more non-addressable devices
within the SCSI device have failed; nevertheless, the SCSI
device is operational (i.e., no logical units have an
abnormal or readying status).
Hallak-Stamler, et al. Standards Track [Page 46]
RFC 4455 SCSI MIB April 2006
- nonAddrFailReadying(7): One or more non-addressable
devices within the SCSI device have failed; nevertheless,
one or more logical units within the SCSI device are being
initialized and access to the SCSI device is temporarily
limited.
- nonAddrFailAbnormal(8): One or more non-addressable
devices within the SCSI device have failed and one or more
addressable devices within the SCSI device are indicating a
status other than available; however, the SCSI device is
operational.
"
REFERENCE
"SCSI Controller Commands-2 (SCC-2) ANSI INCITS 318-1998
6.3.1.8 REPORT STATES service action [SCC2]"
::= { scsiTgtDevEntry 2}
scsiTgtDevNonAccessibleLUs OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is the number of logical units existing but not
currently accessible via this local SCSI target device."
::= { scsiTgtDevEntry 3 }
scsiTgtDevResets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of hard resets encountered
by this SCSI target device.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
REFERENCE
"SCSI Architecture Model-2 (SAM-2), ANSI INCITS 366-2003,
T10 Project 1157-D, 12 September 2002 - Chapter 5.9.7 [SAM2]"
::= { scsiTgtDevEntry 4 }
--******************** SCSI Target Port Table *********************
scsiTgtPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiTgtPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the local SCSI target ports of all the
local SCSI target devices."
Hallak-Stamler, et al. Standards Track [Page 47]
RFC 4455 SCSI MIB April 2006
::= { scsiTargetDevice 2 }
scsiTgtPortEntry OBJECT-TYPE
SYNTAX ScsiTgtPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) containing information applicable to a
particular local SCSI target port of a particular local SCSI
target device within a particular SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiPortIndex}
::= { scsiTgtPortTable 1 }
ScsiTgtPortEntry ::= SEQUENCE {
scsiTgtPortName ScsiName,
scsiTgtPortIdentifier ScsiIdentifier,
scsiTgtPortInCommands Counter32,
scsiTgtPortWrittenMegaBytes Counter32,
scsiTgtPortReadMegaBytes Counter32,
scsiTgtPortHSInCommands Counter64
}
scsiTgtPortName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the name of the port assigned for use
in the SCSI protocol."
::= { scsiTgtPortEntry 1 }
scsiTgtPortIdentifier OBJECT-TYPE
SYNTAX ScsiIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the identifier of the port in one of
the format(s) appropriate for the type of transport."
::= { scsiTgtPortEntry 2 }
scsiTgtPortInCommands OBJECT-TYPE
SYNTAX Counter32
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands received by this
SCSI target port.
Hallak-Stamler, et al. Standards Track [Page 48]
RFC 4455 SCSI MIB April 2006
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiTgtPortEntry 3 }
scsiTgtPortWrittenMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the amount of data written in megabytes
by this SCSI target port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiTgtPortEntry 4 }
scsiTgtPortReadMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the amount of data read in megabytes by
this SCSI target port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiTgtPortEntry 5 }
scsiTgtPortHSInCommands OBJECT-TYPE
SYNTAX Counter64
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands received. This
object provides support for systems that can quickly generate a
large number of commands because they run at high speed.
Discontinuities in the value of this counter can occur at re-
initialization of the management system."
::= { scsiTgtPortEntry 6 }
scsiRemoteIntrDev OBJECT IDENTIFIER ::= { scsiTargetDevice 3 }
-- The scsiAuthorizedIntrTable contains the list of remote initiator
-- ports that are authorized to be attached to specific SCSI target
-- ports and on which an administrator would like to keep permanent
-- information and long term statistics even when not currently
-- attached.
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RFC 4455 SCSI MIB April 2006
scsiAuthorizedIntrTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiAuthorizedIntrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the authorized SCSI initiator devices
or ports that may attach a SCSI target device
(ScsiAuthIntrTgtPortIndex = 0) or port (ScsiAuthIntrTgtPortIndex
different than 0) of the local SCSI instance. Statistics are
kept for each such authorization; thus, the authorizations
should be configured in the manner that will cause the desired
set of statistics to be collected and that will determine the
correct LUN map."
::= { scsiRemoteIntrDev 1 }
scsiAuthorizedIntrEntry OBJECT-TYPE
SYNTAX ScsiAuthorizedIntrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) represents a remote SCSI initiator port or
remote SCSI initiator device that may attach to the local SCSI
target port or device within a particular SCSI instance.
The StorageType of a row in this table is specified by the
instance of scsiInstStorageType that is INDEXed by the same
value of scsiInstIndex."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiAuthIntrTgtPortIndex,
scsiAuthIntrIndex }
::= { scsiAuthorizedIntrTable 1 }
ScsiAuthorizedIntrEntry ::= SEQUENCE {
scsiAuthIntrTgtPortIndex ScsiPortIndexValueOrZero,
scsiAuthIntrIndex ScsiIndexValue,
scsiAuthIntrDevOrPort ScsiDeviceOrPort,
scsiAuthIntrName ScsiName,
scsiAuthIntrLunMapIndex ScsiIndexValueOrZero,
scsiAuthIntrAttachedTimes Counter32,
scsiAuthIntrOutCommands Counter32,
scsiAuthIntrReadMegaBytes Counter32,
scsiAuthIntrWrittenMegaBytes Counter32,
scsiAuthIntrHSOutCommands Counter64,
scsiAuthIntrLastCreation TimeStamp,
scsiAuthIntrRowStatus RowStatus
}
scsiAuthIntrTgtPortIndex OBJECT-TYPE
SYNTAX ScsiPortIndexValueOrZero
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RFC 4455 SCSI MIB April 2006
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object contains either the index of the port or zero, to
indicate any port, on the particular local SCSI target device."
::= { scsiAuthorizedIntrEntry 1 }
scsiAuthIntrIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary integer used to uniquely identify
a SCSI initiator device or port that is authorized to attach
to a particular local SCSI target device or port of a particular
SCSI instance."
::= { scsiAuthorizedIntrEntry 2 }
scsiAuthIntrDevOrPort OBJECT-TYPE
SYNTAX ScsiDeviceOrPort
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies whether this entry refers to a remote
SCSI initiator port or to a SCSI initiator device.
A value of device(1) means that the authorized remote initiator
is a SCSI initiator device and includes all of its ports.
A value of port(2) means that the authorized remote initiator
is a SCSI initiator port."
::= { scsiAuthorizedIntrEntry 3 }
scsiAuthIntrName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents the name of the remote SCSI initiator
device or port authorized by this row."
::= { scsiAuthorizedIntrEntry 4 }
scsiAuthIntrLunMapIndex OBJECT-TYPE
SYNTAX ScsiIndexValueOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object identifies the set of entries in the
scsiLunMapTable for which scsiLunMapIndex has the same value as
the value of this object. The identified set of entries
Hallak-Stamler, et al. Standards Track [Page 51]
RFC 4455 SCSI MIB April 2006
constitutes the LUN map to be used for accessing logical units
when the remote SCSI initiator port or device corresponding to
this entry is attached to any local SCSI target port or device
corresponding to this entry.
Note that this object has a value of zero if this entry should
use the default LUN map."
::= { scsiAuthorizedIntrEntry 5 }
scsiAuthIntrAttachedTimes OBJECT-TYPE
SYNTAX Counter32
UNITS "Times"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the number of times that this remote
SCSI initiator device or port has transitioned from unattached
to attached to this local SCSI target device or port.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiAuthIntrLastCreation."
::= { scsiAuthorizedIntrEntry 6 }
scsiAuthIntrOutCommands OBJECT-TYPE
SYNTAX Counter32
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the number of commands that the remote
SCSI initiator device or port corresponding to this entry has
sent to the local SCSI target device or port corresponding to
this entry.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiAuthIntrLastCreation."
::= { scsiAuthorizedIntrEntry 7 }
scsiAuthIntrReadMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the amount of data in megabytes that
the remote SCSI initiator device or port corresponding to this
entry has read from the local SCSI target device or port
corresponding to this entry.
Discontinuities in the value of this counter can occur at re-
Hallak-Stamler, et al. Standards Track [Page 52]
RFC 4455 SCSI MIB April 2006
initialization of the management system, and at other times as
indicated by the value of scsiAuthIntrLastCreation."
::= { scsiAuthorizedIntrEntry 8 }
scsiAuthIntrWrittenMegaBytes OBJECT-TYPE
SYNTAX Counter32
UNITS "Megabytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the amount of data in megabytes that the
remote SCSI initiator device or port corresponding to this
entry has written to the local SCSI target device or port
corresponding to this entry.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiAuthIntrLastCreation."
::= { scsiAuthorizedIntrEntry 9}
scsiAuthIntrHSOutCommands OBJECT-TYPE
SYNTAX Counter64
UNITS "commands"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the number of commands sent by the
remote SCSI initiator device or port corresponding to this
entry to the local SCSI target device or port corresponding to
this entry. This object provides support for systems that can
quickly generate a large number of commands because they run at
high speed.
Discontinuities in the value of this counter can occur at re-
initialization of the management system, and at other times as
indicated by the value of scsiAuthIntrLastCreation."
::= { scsiAuthorizedIntrEntry 10 }
scsiAuthIntrLastCreation OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the value of sysUpTime when this row was
last created."
::= { scsiAuthorizedIntrEntry 11 }
scsiAuthIntrRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
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RFC 4455 SCSI MIB April 2006
STATUS current
DESCRIPTION
"This object allows an administrator to create or delete this
entry.
A newly created row cannot be made active until a value has
been set for scsiAuthIntrName. In this case, the value of the
corresponding instance of the scsiAuthIntrRowStatus column will
stay 'notReady'.
The RowStatus TC [RFC2579] requires that this DESCRIPTION
clause states under which circumstances other objects in this
row can be modified:
The value of this object has no effect on whether other objects
in this conceptual row can be modified."
::= { scsiAuthorizedIntrEntry 12 }
-- Table of SCSI initiator devices or ports attached to local
-- SCSI target ports
--
scsiAttIntrPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF ScsiAttIntrPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes all the remote SCSI initiator ports that
are currently attached to a local SCSI target port of all local
devices within all SCSI instances."
::= { scsiRemoteIntrDev 2 }
scsiAttIntrPortEntry OBJECT-TYPE
SYNTAX ScsiAttIntrPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (row) represents a remote SCSI initiator port
currently attached to a particular local SCSI target port of a
particular SCSI target device of a particular SCSI instance."
INDEX { scsiInstIndex, scsiDeviceIndex, scsiPortIndex,
scsiAttIntrPortIndex }
::= { scsiAttIntrPortTable 1 }
ScsiAttIntrPortEntry ::= SEQUENCE {
scsiAttIntrPortIndex ScsiIndexValue,
scsiAttIntrPortAuthIntrIdx ScsiIndexValueOrZero,
scsiAttIntrPortName ScsiName,
scsiAttIntrPortIdentifier ScsiIdentifier
}
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RFC 4455 SCSI MIB April 2006
scsiAttIntrPortIndex OBJECT-TYPE
SYNTAX ScsiIndexValue
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object represents an arbitrary integer used to uniquely
identify a particular attached remote initiator port to a
particular SCSI target port within a particular SCSI target
device within a particular SCSI instance."
::= { scsiAttIntrPortEntry 1 }
scsiAttIntrPortAuthIntrIdx OBJECT-TYPE
SYNTAX ScsiIndexValueOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is the corresponding index in the
scsiAuthorizedIntrTable for this current attached remote
SCSI initiator device or zero if this remote attached SCSI
initiator device is not configured in that table."
::= { scsiAttIntrPortEntry 2 }
scsiAttIntrPortName OBJECT-TYPE
SYNTAX ScsiName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the name of the remote SCSI initiator
device attached to this local SCSI target port."
::= { scsiAttIntrPortEn |
