HP XP20000/XP24000 User manual

HP StorageWorks
XP24000/XP20000 SNMP Agent Reference
Guide
Abstract
This guide describes the implementation of Simple Network Management Protocol (SNMP) for monitoring HP
StorageWorks XP24000/XP20000 storage systems. The guide lists the monitored storage system components
and supported traps, describes the trap protocol and extension MIB, and explains how to use the GUI to limit
SNMP access to specific SNMP managers. The intended audience is a storage system administrator or authorized
service provider with independent knowledge of HP StorageWorks XP storage systems and Remote Web Console.
Part number: AE131-96075
Tenth edition: December 2009

Legal and notice information
© Copyright 2007, 2009 Hewlett-Packard Development Company, L.P.
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and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items
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Acknowledgments
Microsoft, Windows, and Windows XP are U.S. registered trademarks of Microsoft Corporation.
Hitachi and Universal Replicator are registered trademarks of Hitachi, Ltd.
ShadowImage and TrueCopy are registered trademarks of Hitachi, Ltd. and Hitachi Data Systems Corporation
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Revision History
DescriptionDateEdition
This edition applies to microcode version 60-01-31-00/00 or later.June 2007First
This edition applies to microcode version 60-02-04-00/00 or later.September 2007Second
This edition applies to microcode version 60-02-25-00/00 or later.January 2008Third
This edition applies to microcode version 60-02-48-00/00 or later.April 2008Fourth
This edition applies to microcode version 60-03-04-00/00 or later.June 2008Fifth
This edition applies to microcode version 60-03-24-00/00 or later.September 2008Sixth
This edition applies to microcode version 60-04-04-00/00 or later.December 2008Seventh
This edition applies to microcode version 60-04-13-00/00 or later.February 2009Eighth
This edition applies to microcode version 60-05-00-00/00 or later.June 2009Ninth
This edition applies to microcode version 60-06-05-00/00 or later.December 2009Tenth

Contents
1 Overview of SNMP ............................................................................ 7
SNMP Manager Overview ........................................................................................................... 7
SNMP Manager and SNMP Agent Interaction ......................................................................... 7
Management Information Base (MIB) ...................................................................................... 8
SNMP Agent Overview ............................................................................................................... 8
System Configuration ............................................................................................................ 8
SNMP Agent Functions ......................................................................................................... 9
SNMP Traps .................................................................................................................. 9
SNMP Agent Operations .............................................................................................. 10
Error Report ................................................................................................................ 10
SNMP Manager Functions ......................................................................................................... 11
Component Status Information .............................................................................................. 11
2 Using the SNMP GUI ....................................................................... 13
SNMP Information Tab .............................................................................................................. 13
3 Performing SNMP Operations ............................................................ 17
Adding SNMP Manager IP Addresses ......................................................................................... 17
Deleting SNMP Manager IP Addresses ........................................................................................ 18
Adding a Community Name ...................................................................................................... 19
Deleting a Community Name ..................................................................................................... 20
Changing a Community Name ................................................................................................... 21
Adding Community IP Addresses ................................................................................................ 22
Deleting a Community IP Address ............................................................................................... 23
Testing the SNMP Trap Report .................................................................................................... 24
4 SNMP Supported MIB ...................................................................... 25
Trap Configuration .................................................................................................................... 25
Extension Trap Specifications ............................................................................................... 25
Extension Trap Protocol Data Unit (PDU) ................................................................................ 26
Failure Report Trap ....................................................................................................... 26
Standard MIB Specifications ....................................................................................................... 26
Supported MIB .................................................................................................................. 26
MIB Access Mode .............................................................................................................. 27
Object Identifier System ....................................................................................................... 27
Supported Traps ................................................................................................................. 28
MIB Mounting Specifications ............................................................................................... 29
Extension MIB Specifications ...................................................................................................... 30
Extension MIB Configuration ................................................................................................ 30
raidExMibName .......................................................................................................... 30
raidExMibVersion ........................................................................................................ 30
raidExMibAgentVersion ................................................................................................ 30
Number of Storage Systems under Control of SVP (raidExMibDkcCount) ............................. 31
raidExMibRaidList ........................................................................................................ 31
XP24000/XP20000 SNMP Agent Reference Guide 3

(raidlistEntry) ............................................................................................................... 31
raidExMibDKCHW ...................................................................................................... 32
dkcHWEntry ............................................................................................................... 32
raidExMibDKUHW ...................................................................................................... 33
dkuHWEntry ............................................................................................................... 33
raidExMibDKCHW2 .................................................................................................... 34
raidExMibTrapList ........................................................................................................ 35
Extension MIB Configuration ...................................................................................................... 37
5 SNMP Failure Trap Reference ............................................................ 39
6 Troubleshooting ............................................................................... 51
Mitigating SNMP Errors ............................................................................................................. 51
Calling HP Technical Support ..................................................................................................... 51
7 Support and Other Resources ............................................................ 53
Related Documentation .............................................................................................................. 53
Conventions for Storage Capacity Values ..................................................................................... 53
HP Technical Support ................................................................................................................ 53
Subscription Service .................................................................................................................. 54
HP Websites ............................................................................................................................ 54
Documentation Feedback ........................................................................................................... 54
A Acronyms and Abbreviations ............................................................. 55
Index ................................................................................................. 57
4

Figures
SNMP Environment ................................................................................................... 71
SNMP Environment Architecture .................................................................................. 92
Example of SNMP Operations .................................................................................... 93
SNMP Information Tab ............................................................................................ 144
Adding SNMP Manager IP Address (Top: Before Setting, Bottom: After Setting) .............. 185
Delete IP Address Menu ........................................................................................... 196
Add Community Menu ............................................................................................ 207
Add Community dialog box ..................................................................................... 208
Delete Community Menu .......................................................................................... 219
Change Community Menu ....................................................................................... 2210
Change Community dialog box ................................................................................ 2211
Add IP Address Menu .............................................................................................. 2312
IP Address dialog box ............................................................................................. 2313
Delete Community IP Address Menu .......................................................................... 2414
Object System (1) ................................................................................................... 2715
Object System (2) ................................................................................................... 2816
Object System (3) ................................................................................................... 2817
Extension MIB Configuration .................................................................................... 3018
Extension MIB Configuration (1) ................................................................................ 3719
Extension MIB Configuration (2) ................................................................................ 3820
XP24000/XP20000 SNMP Agent Reference Guide 5

Tables
SNMP Trap Triggering Events ..................................................................................... 91
SNMP Agent Operations ......................................................................................... 102
SNMP Agent REQUEST Operations ........................................................................... 103
Available Component Status Information .................................................................... 114
Storage system Component Status Types .................................................................... 115
SNMP Information Tab ............................................................................................ 146
Extension Trap Specifications ................................................................................... 257
Specific Trap Codes ................................................................................................ 258
Failure Report Trap .................................................................................................. 269
Supported MIBs ...................................................................................................... 2610
Extension Trap Types ............................................................................................... 2811
System Groups ....................................................................................................... 2912
Storage system Information ....................................................................................... 3113
Storage system component information ...................................................................... 3214
Storage System components information .................................................................... 3415
Storage system components information 2 .................................................................. 3516
Failure Information .................................................................................................. 3617
SNMP Failure Trap Reference Codes ......................................................................... 3918
SIM List for TrueCopy for Mainframe Errors ................................................................. 5019
Acronyms and Abbreviations .................................................................................... 5520
6

1 Overview of SNMP
This chapter provides an overview of SNMP including an overview of the agent and management
functions:
•SNMP Manager Overview
•SNMP Agent Overview
•SNMP Manager Functions
Unless otherwise specified, the term storage system in this guide refers to the following disk arrays:
•HP StorageWorks XP24000 Disk Array
•HP StorageWorks XP20000 Disk Array
The GUI illustrations in this guide were created using a Windows computer with the Internet Explorer
browser. Actual windows may differ depending on the operating system and browser used. GUI
contents also vary with licensed program products, storage system models, and firmware versions.
SNMP Manager Overview
SNMP Manager and SNMP Agent Interaction
The following figure shows an SNMP environment.
Figure 1 SNMP Environment
.
Simple Network Management Protocol (SNMP) is an industry-standard protocol for managing and
monitoring network devices, including disk devices, routers, and hubs. SNMP uses Simple Gateway
Management Protocol (SGMP) to manage the TCP/IP gateways.
The standardized configuration and database of network management information is called a
Management Information Base (MIB). A standard MIB is common to all SNMP interfaces. An extension
MIB is defined by the particular managed device or protocol.
XP24000/XP20000 SNMP Agent Reference Guide 7

An SNMP manager monitors the devices, which are referred to as managed nodes. The primary types
of interaction between the SNMP manager and an SNMP agent are polling and trap. Typically, the
SNMP manager polls the SNMP agents on a periodic basis, to determine whether the device is
operating normally. If an abnormal event occurs, the SNMP Agent can report the condition without
a request from the manager, by using a message called trap.
When an SNMP Manager polls the agent, the following dialog takes place:
•An SNMP manager sends a request packet to an SNMP agent, which requests data regarding
the status of managed node.
•The SNMP agent sends a response packet back to the SNMP manager.
•SNMP uses the TCP/IP User Datagram Protocol (UDP). If the SNMP agent does not respond
within a specified time period, the SNMP manager re-sends the request packet. That time period
is set by the system administrator, taking into account the network traffic and operation policy.
•If an SNMP agent again does not respond to the re-sent packet, the SNMP manager assumes that
an error has occurred. Depending on the times set for polling and response, this can take several
seconds.
If an SNMP agent detects an abnormal event, it sends a trap to the SNMP manager. However, if a
trap is dropped in transmission, the SNMP manager does not know that it was sent. For this reason,
you should use both polling and traps to determine whether an abnormal event has occurred.
Management Information Base (MIB)
Each managed device has certain types of information, including the configuration information, the
status information for device, and statistical, which is known collectively as a Management Information
Base (MIB). Each parameter is called a managed object, and it consists of the parameter name, one
or more parameter(s), and a group of operations that can be executed with the object. The MIB defines
the type of information that can be obtained from a managed device, and the device settings that
can be controlled from a management system.
SNMP Agent Overview
System Configuration
The SNMP agent for the HP storage system is on the service processor (SVP), which is the computer
within the storage array that manages the storage system. The storage system has an exclusive LAN
for communications between a disk controller and a service processor, and a separate LAN for SNMP.
The configuration of each Network Management Station is determined by the type of SNMP Manager.
The following figure illustrates the SNMP environment.
Overview of SNMP8

Figure 2 SNMP Environment Architecture
.
The following figure shows an example of SNMP operations by using an SNMP manager.
Figure 3 Example of SNMP Operations
.
SNMP Agent Functions
SNMP Traps
An SNMP agent reports a storage system error to a SNMP manager using the trap report function.
If an error occurs, an SNMP agent issues an SNMP trap to an SNMP manager to report a failure.
Issuing an SNMP trap, an SNMP agent also reports a product number, nickname, reference code,
and an identifier of the component.
The following table lists the events that trigger an SNMP agent trap.
Table 1 SNMP Trap Triggering Events
DescriptionEvents
All operations in a storage system stopped.Acute failure detected.
Operation in a component where a failure occurred
stopped.
Serious failure detected.
Partial failure.Moderate failure detected.
XP24000/XP20000 SNMP Agent Reference Guide 9

DescriptionEvents
Minor failure.Service failure detected.
An SNMP agent logs the most recent 256 traps, so you can see the trap history of a particular device.
SNMP Agent Operations
The following table lists the types SNMP Agent operations.
Table 2 SNMP Agent Operations
DescriptionOperation
Obtains a specific MIB object value.
GET REQUEST is the request from an SNMP manager, and GET RESPONSE is the
agent's response to that request.
GET
Continuously finds a MIB object.
GETNEXT REQUEST is the request from an SNMP manager, and GETNEXT RESPONSE
is the agent's response to that request.
GETNEXT
Reports an event (failure) to an SNMP manager.
TRAP occurs without a request from the SNMP manager.
TRAP
Error Report
The following table lists the errors to be reported for the REQUEST operations.
Table 3 SNMP Agent REQUEST Operations
Corrective ActionDescriptionError
N/ANormalnoError(0)
Verify that the requested object
is correct.
•There are no MIB objects that are required. (Not
supported).
•The GETNEXT REQUEST command that is spe-
cified for the following object identifier of the
last supported MIB object is received.
noSuchName(2)
SET operation is not supported.SET REQUEST is received.readOnly(4)
Retry the operation.Error occurred for other reasons.genErr(5)
Overview of SNMP10

SNMP Manager Functions
Component Status Information
You can obtain the status information for certain storage system components from an SNMP manager.
The following table lists the components for which the status can be obtained.
Table 4 Available Component Status Information
Component NameArea
Processor
Storage System
BUS
Cache
Shared memory
Power supply
Battery
Fan
Others
Hard Disk Drive
Power supply
Disk Unit
Fan
Others
Drive
The following table lists the storage system component status as well as the trap report function.
Table 5 Storage system Component Status Types
DescriptionStatus
Normal operation.Normal
All operations in a storage system stopped.Acute failure detected
Operation in a component where a failure occurred stopped.Serious failure detected
Partial failure.Moderate failure detected
Minor failure.Service failure detected
XP24000/XP20000 SNMP Agent Reference Guide 11

Overview of SNMP12

2 Using the SNMP GUI
This chapter explains the SNMP information tab:
•SNMP Information Tab
SNMP Information Tab
The SNMP IP Security tab allows you to limit SNMP access to specific SNMP managers and to enter
SNMP trap addresses. Click Go –Install –SNMP SNMP IP Security in the menu bar of Remote Web
Console Main window. The SNMP IP Security tab displays. Select the SNMP SNMP IP Security tab
(see Figure 4 on page 14).
Option buttons (left side of the window) and storage system information icons (window upper right
corner) have been omitted from the screen shot. See HP StorageWorks XP24000/XP20000 Remote
Web Console User's Guide for an illustration.
XP24000/XP20000 SNMP Agent Reference Guide 13

Figure 4 SNMP Information Tab
.
Table 6 SNMP Information Tab
DescriptionItem
The Extension SNMP check box is selected if the SNMP Agent feature is enabled.
To set the SNMP Agent properties from XP Remote Web Console computer, select Extension
SNMP on SNMP Information window.
Install
The Manager section allows you to add and delete SNMP manager information (see “Adding
SNMP Manager IP Addresses”on page 17).
Manager
Displays the IP addresses of registered SNMP managers from which the SNMP agent accepts
requests. If no manager is registered, the SNMP agent accepts requests from all managers.
You can register up to 32 managers.
IP Address list
box
Using the SNMP GUI14

DescriptionItem
Enter the IP address of the manager that the SNMP Agent receives the request from.
•Ipv4 and Ipv6 addresses can be specified for IP Address. However, if the OS of SVP is
Windows XP and you enter Ipv6 address and select Apply, an error message is displayed
and the Ipv6 address is not set.
•Any IP address having all values set to zero (0) cannot be specified for Ipv4 and Ipv6.
•The Ipv4 address is specified by entering four (4) numbers that are separated by periods
(.) using a maximum 3 digits from zero (0) to 255 inclusive. (For example:
XXX.XXX.XXX.XXX where X is a number). Enter the numbers only and do not enter periods.
•The Ipv6 address is specified by entering eight (8) hexadecimal numbers that are separated
colons (:) using a maximum 4 digits from zero (0) to FFFF inclusive. (For example:
YYYY:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY where Y is a hexadecimal number). Enter
the hexadecimal numbers only and do not enter the colons. The cursor can be moved
between the entry field using the Tab key.
IP Address
text box
Is selected when entering an Ipv4 address. The Ipv4 address can be entered to IP address
text box when this radio box is selected.
Ipv4 radio
box
Is selected when entering Ipv6 address. The Ipv6 address can be entered to IP address text
box when this radio box is selected.
Ipv6 radio
box
Adds new IP addresses to the IP Address list box.
Set
Allows you to add, delete, or change SNMP trap information. The registered IP address is
the trap destination for the specified community.
•Each community can have more than one defined IP address (sees “Adding a Community
Name”on page 19 and “Adding Community IP Addresses”on page 22).
•You can register up to 32 community names and up to 32 IP addresses per community
name.
•You can use up to 180 alphanumeric characters for a community name. You cannot use
the following: ", \, ;, :, ,, *, ?, <, >, |, /, ^, &, %, and a space before or after the com-
munity name.
Community &
Trap
XP24000/XP20000 SNMP Agent Reference Guide 15

DescriptionItem
Allows you to add, delete or change SNMP system group information. If system group
information has already been registered, the registered information displays. To register the
system group information, the Extension SNMP check box must be selected. When you register
system group information, select Apply. System group information is as follows:
•Name: Connected storage system name. Remote Web Console users can change the
device name. You can use up to 180 alphanumeric characters for a device name. You
cannot use the following: ", \, ;, :, ,, *, ?, <, >, |, /, ^, &, %, . You can use a space in
the middle of the device name, but not before and after and a space before or after the
device name.
The device name is required to use SNMP Agent. Make sure to document the device name,
because settings will be cleared when SVP is replaced.
•Contact: Contact information such as personnel and telephone numbers where you can
inquire about the connected storage system. Remote Web Console users can change
contact information in Modify mode. Enter contact information using up to 180 alphanu-
meric characters (ASCII codes), except for some symbols, such as ", \, ;, :, ,, *, ?, <, >,
|, /, ^, &, and %. You can also use a space, except before and after contact information.
A contact name is required to use SNMP Agent. Make sure to document the contact name,
because settings will be cleared when SVP is replaced.
•Location: Location of connected storage system. Remote Web Console users can change
device locations with the modify mode. You must enter a device location using up to 180
alphanumeric characters (ASCII codes). You can use a space, except for before and after
the location. You cannot use some symbols, such as ", \, ;, :, ,, *, ?, <, >, |, /, ^, &, and
%.
The device location is required to use SNMP Agent. Make sure to document the device
location, because the settings will be cleared when SVP is replaced.
System Group
Executes test report of the trap to the community registered in the disk storage system.
Operation in Modify mode is required to use this button. Operation authority is required as
well.
Trap Test
Implements settings made on this window.Apply
Cancels settings made on this window.Cancel
Using the SNMP GUI16

3 Performing SNMP Operations
This chapter covers adding and deleting an SNMP manager IP address, adding and deleting a
community name, along with adding and deleting a community IP address:
•Adding SNMP Manager IP Addresses
•Deleting SNMP Manager IP Addresses
•Adding a Community Name
•Deleting a Community Name
•Changing a Community Name
•Adding Community IP Addresses
•Deleting a Community IP Address
•Testing the SNMP Trap Report
Adding SNMP Manager IP Addresses
To add SNMP Manager IP addresses:
1. Log on to open Remote Web Console Main window. Change to Modify mode (see HP
StorageWorks XP24000/XP20000 Remote Web Console User's Guide if you need instructions).
2. Click Go –Environmental Settings –SNMP Information in the menu bar of Remote Web Console
Main window. The SNMP Information window is displayed (see Figure 4 on page 14).
3. Select the radio box of Ipv4 or Ipv6 and specify the version of the IP address you enter.
NOTE:
If the OS of SVP is Windows XP and you enter Ipv6 address and select Apply, an error
message is displayed and the Ipv6 address is not set.
4. Enter desired numerical IP address in IP Address text box (see Figure 5 on page 18).
5. Select Set. The new IP address is added to IP Address list, but the changes are not implemented.
XP24000/XP20000 SNMP Agent Reference Guide 17

6. Select Apply to implement the changes, or select Cancel to cancel the changes, then select OK
on the confirmation message.
Figure 5 Adding SNMP Manager IP Address (Top: Before Setting, Bottom: After Setting)
.
Deleting SNMP Manager IP Addresses
To delete an SNMP Manager IP address:
1. Change to Modify mode.
2. Log on to Remote Web Console. Click Go –Environmental Settings –SNMP Information in the
menu bar of Remote Web Console Main window. The SNMP Information window is displayed
(see Figure 4 on page 14).
3. Select one or more unwanted IP addresses in IP Address list box. Right-click to display Delete IP
Address menu (see Figure 6 on page 19).
4. Select Delete IP Address.
5. A confirmation message displays. Select OK or Cancel.
6. Select Apply. Select OK or Cancel.
Performing SNMP Operations18

Figure 6 Delete IP Address Menu
.
Adding a Community Name
To add a community name:
1. Change to Modify mode.
2. Log on to Remote Web Console. Click Go –Environmental Settings –SNMP Information in the
menu bar of Remote Web Console Main window. The SNMP Information window is displayed
(see Figure 4 on page 14).
3. In Community & Trap box, select and right-click Community.Add Community menu displays (see
Figure 7 on page 20).
4. Select Add Community.Community dialog box (see Figure 8 on page 20) displays.
5. In the Community text box, enter desired community name. You can use up to 180 alphanumeric
characters, except for ",\,;,:,,,*,?,<,>,|,/,^,&, and %. You can also use spaces, except
at the beginning or the end of the name.
6. Select OK. The new community name displays in Community & Trap, but the changes are not
yet implemented in the storage system.
7. To add one or more IP addresses to the new community, see
“Adding Community IP Addresses”on page 22.
8. To apply changes, select Apply. Select OK or Cancel.
XP24000/XP20000 SNMP Agent Reference Guide 19

Figure 7 Add Community Menu
.
Figure 8 Add Community dialog box
.
Deleting a Community Name
To delete a community name:
1. Change to Modify mode.
2. Log on to open Remote Web Console Main window, click Go –Environmental Settings –SNMP
Information in the menu bar of Remote Web Console Main window. The SNMP Information
window is displayed (see Figure 4 on page 14).
3. In Community & Trap, select and then right-click the unwanted community. The Delete Community
menu displays (see Figure 9 on page 21).
4. Select the Delete Community command. A confirmation message displays.
5. Select OK or Cancel. The selected community is deleted from Community & Trap, but the setting
is not yet implemented in the storage system.
6. Select Apply. Select OK or Cancel on the confirmation message.
Performing SNMP Operations20