HP XP20000, XP24000 User Manual

HP StorageWorks XP24000 LUN Expansion User's Guide

Part number: T5214–96005

irst edition: June 2007

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Revision History

Edition

First

Date

June 2007

Description

This edition applies to microcode version 60-01-31-00 /00 or later.

Contents

AboutthisGuide .......................... 7

IntendedAudience...................................... 7

RelatedDocumentation.................................... 7

DocumentConventions.................................... 8

ConventionsforStorageCapacityValues ............................ 8

WindowIllustrations ..................................... 8

HPTechnicalSupport..................................... 8

SubscriptionService ..................................... 9

HPWebsites ........................................ 9

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1AboutLUSEOperations ..................... 11

OverviewofHPStorageWorksXPLUNExpansion(LUSE) .................... 11

LUSEFunction....................................... 11

LUSEGuidelines...................................... 12

LUSE Operations Using a Path-deﬁnedLDEV........................ 13

2PreparingforLUSEOperations .................. 15

SystemRequirements.................................... 15

PreparingtoUseLUSE ................................... 15

3UsingtheLUSEGUI . . ..................... 17

LUNExpansionWindow .................................. 17

LDEVInformationTree ................................. 17

LDEVDetailTable ................................... 17

LDEVOperationDetail................................. 18

4PerformingLUSEOperations ................... 21

LaunchingLUNExpansion(LUSE) .............................. 21

ViewingConcatenatedParityGroups............................. 21

CreatingaLUSEVolume .................................. 22

CreatingaLUSEVolumefromtheLDEVDetailTable .................... 22

Creating a LUSE Volume from the LDEV Operation Detail (Select an LDEV Combo Box) . . . . . . 24

CreatingaLUSEVolumeUsingtheVolumeCountComboBox ................ 24

ResettinganUnregisteredLUSEVolume............................ 25

ReleasingaLUSEVolume.................................. 27

ChangingLUSECapacities ................................. 28

DisplayingaListofVolumesCombinedintoaLUSEVolume ................... 28

5Troubleshooting . ........................ 31

TroubleshootingLUNExpansion ............................... 31

CallingHPTechnicalSupport ................................ 31

AGlossary,Acronyms,andAbbreviations .............. 33

Index .............................. 35

XP24000 LUN Ex pansion User's Guide

Figures

LUSE Conﬁguration............................... 11

LUSEWindow................................. 17

ConcatenationListDialogBox.......................... 22

Set LUSE ConﬁrmationDialogBox ........................ 23

Reset LUSE ConﬁrmationDialogBox ....................... 26

Release LUSE ConﬁrmationDialogBox ...................... 27

LUSE Detail

DialogBox............................. 29

Tables

1 2

3 4

DocumentConventions .............................. 8

Speciﬁcations and Restrictions on LDEVs Used to ConﬁgureaLUSEVolume....... 12

Speciﬁcatio

LDEVStatusIcons ............................... 18

Glossary,Acronyms,andAbbreviations...................... 33

ns and Restrictions on LDEVs Released from a LUSE Volume . . . . . . . . 13

XP24000 LUN Ex pansion User's Guide

About t his Guide

This user's guide provides instructions for using the LUN Expansion option on the HP storage system. The term storage system in this guide refers to an HP StorageWorks XP24000 Disk Array.

Intended Audience

This document assumes the following:

• The user is fam

the

Remote Web

• The user has a background in data processing and understands RAID storage systems and

their basic functions.

• The user is familiar with the storage system and has read and understands the HP StorageWorks

XP24000 Disk Array Owner's Guide for the storage system.

Document Conventions

Table 1 Document Conventions

Convention

Blue text: Table 1 Cross-reference links and e-mail addresses Blue, u nderlined text:

ttp://www.hp.com

Bold text

Element

Website addresses

• Text emphasis

elements

• UI

Conventions for Storage Capacity Values

HP XP storage systems use the following values to calculate physical storage capacity values (hard disk drives):

• 1 KB (kilobyte) = 1,000 bytes

bytes

• 1 MB (megabyte) = 1,000

• 1 GB (gigabyte) = 1,000

• 1 TB (terabyte) = 1,000

HP XP storage systems use the following values to calculate logical storage capacity values (logical devices):

• 1KB(kilobyte)=1,024bytes

• 1MB(megabyte)= 1,024

• 1 GB (gigabyte) = 1,024

• 1TB (terabyte) =1,024

• 1block =512 bytes

Window Illustrations

The windows shown in this guide were displayed on a Windows computer with the Internet E xplorer browser. The windows may appear different on your computer depending on the operating system and browser being used. Window contents also vary depending on installed program products and the

storage system being managed.

HP Technical Support

For worldwide technical support information, see the HP support website:

ttp://www.hp.com/support

Before contacting HP, collect the following information:

• Product model names and numbers

About this Guide

• Technical support registration number (if applicable)

• Product serial numbers

• Error messages

• Operating system type and revision level

• Detailed questions

Subscription Service

HP recommends that you register your product at the Subscriber’s Choice for Business website:

ttp://www.hp.com/go/e-updates

After registering, you will receive e-mail notiﬁcation of product enhancements, new driver versions, ﬁrmware updates, and other product resources.

HP Websites

For additional information, see the following HP websites:

• h

ttp://www.hp.com

• http://www.hp.com/go/storage

• http://www.hp.com/service_locator

• http://www.hp.com/support/manuals

Documentation Feedback

your feedback.

HP welcome To make comments and suggestions about product documentation, send a message to

storagedocsFeedback@hp.com. All submissions become the property of HP.

XP24000 LUN Expansion User's Guide

About this Guide

1About LUSE Operations

Overview of HP StorageWorks XP LUN Expansion (LUSE)

LUN Expansion (LUSE) operations allow hosts that can use only a limited amount of LUs per ﬁbre i nterface to have access to larger amounts of data by using expanded LUs.

LUSE Function

LUN Expansion (LUSE) is a function for open systems. To use this function, you need the software called Open Volume M anagement.

The LUSE function is applied to open-system logical volumes and enables you to conﬁgure one large logical volume by combining several small LDEVs. The LUSE function allows hosts that can use only a limited number of logical units (LUs) per ﬁbre interface to have access to la rger amou nts of data by

LUs.

using expan

ded

Figure 1 on p

logical dev expanded u logical volume is represented by the smallest LDEV ID (assigned to the top LDEV). The host recognizes the

expanded logical volume as one representative LDEV. As long as the number of LDEVs combined into one large lo gical volume does not exceed the speciﬁed limit (see Table 2 on page 12), you can arbitrarily select any LDEVs as the volumes to combine, regardless of their size (or capacity) or whether or

not they are on the same CU (Control Unit). The LUSE function also allows you to combine several LDEVs and a LUSE volume (combined LDEVs) into one LUSE volume or combine LUSE volumes together into one

Before the host can access each LDEV composing an expanded LU (LUSE volume), you must release the

expanded LU.

Host

age11shows theLUSEconﬁguration. By using the LUSE function, you can combine several

ices (LDEVs) or volumes into one large logical volume. The size of the conﬁgured LDEV can be

to 36 times the size of the original LDEV. The ID of the logical volume deﬁned as the large

LUSE volume.

LUSE (1:00)

The host sees LUSE volumes as one LDEV.

LDEV (1:00)

LDEV (1:01)

LDEV (1:03)

LUSE (1:04)

LDEV (1:04)

LDEV (1:05)

Figure 1 LUSE Conﬁguration

To create an open-systems volume (LU) larger than 2.8 TB, you must use LUSE to combine open-systems volumes so that a LUSE volume larger than 2.8 TB is created.

XP24000 LUN Expansion User's Guide

Whether hosts can access a volume larger than 2 TB depends on the operating systems of the hosts. Hosts running the following operating systems can access LUSE volumes larger than 2 TB:

• AIX 5.2 TL08 or later

• AIX 5.3 TL04 or later

• Windows Server 2003 SP1 or later

• Red Hat Enterprise Linux AS 4 Update 1 or later

Cautions

• Other operating systems do not support LUs larger than 2 TB. If other operating systems are used

by hosts, make sure that the LUs are not larger than 2 TB.

• For information about the maximum LU capacity s upported by your operating system, contact the

vendor of your operating system.

LUSE Guidelines

Table 2 on pa Table 3 on pa

ge 12 lists the speciﬁcationsand restrictionsfor LDEVsusedto conﬁgure a LUSE volume. ge 13

lists the speciﬁcations and restrictions for LDEVs released from a LUSE volume.

Table 2 Spec

No.

Open volumes (OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-L, and OPEN-V) are supported. The number of LDEVs combined into a LUSE volume must be within the range of 2 to 36 (see

Note 1

The emulation type of theLDEVs combined into aLUSEvolumemust bethe same. TheRAIDlevel of theLDEVs that aretobecombinedintoLUSEvolumes should be thesame

(recommended) (see LDEVs or LUSE volumes that are to be combined must not have assigned path deﬁnitions.

Forthisreason, TrueCopy forMainframe, HPStorageWorksXPContinuousAccessSoftware,

ShadowImage for Mainframe, HP StorageWorks XP Business Copy Software, and HP StorageWorks XP Continuous Access Journal Software pair volumes cannot be targets of LUSE operations (see “LUSE Operations Using a Path-deﬁned LDEV”onpage13).

LDEVs that are to be combined into LUSE volumes must not be reserved for HP StorageWorks XP

Auto LUN Software. When yo

8 9

p(see

overla The maximum capacity of a LUSE volume is 60 TB (see Combining command devices into a LUSE volume is not supported. The access attribute must be set to Read/Write.

iﬁcations and Restrictions on LDEVs Used to Conﬁgure a LUSE Volume

Speciﬁcations and Restrictions

Note 2

combine a LUSE volume with another LUSE volume, the range of LDEVs should not

Note 3

Note 4

Combining internal volumes, external volumes, and virtual volumes (V-VOLs) is not supported.

Whileonline, the hostmodemustnot be 0x0C [Windows]or0x01[VMWare].

The cache mode settings for LDEVs combined into a LUSE volume must be the same. AllLDEVs combined into aLUSEvolumemustbeofthe same drive type(however, SATA drives

and

BD drives can be intermixed).

LDEVs are not pool volumes (pool-VOLs).

LDEVs are not journal volumes.

LDEVsare notsystemvolumes.

About

LUSE Operations

Note 1:

another

Note 2:

recommended.

Note 3:

and combine

The number of expanded LUs (LDEVs) should not exceed 36, even if the LUSE volume contains

LUSE volume.

Combining R AID 1 and RAID 5 volumes into the same LUSE volume is supported, but not

If you combine LDEV00, LDEV03, and LDEV05 into LUSE 1,LDEV02 and LDEV04 into LUSE 2,

LDEV06 and LDEV07 into LUSE3, you can also combine LUSE 1 and LUSE 3. However, you cannot

LUSE 1 and LUSE 2 because the LD EV range in LUSE 1 and LUSE 2 overlaps.

Note 4:

this disk area cannot contain user data. Therefore, the maximum capacity for user data in a LUSE volume is less than 60 TB.

Table 3 Speciﬁcations and Restrictions on LDEVs Released from a LUSE Volume

No.

A LUSE volume contains up to 4 MB of disk area to be used for controlling the volume, and

Speciﬁcations and Restrictions

TheLUSEvolumemustnot have anydeﬁ ned path.

Theaccess attributemustbeset to Read/Write.

LUSE Operations Using a Path-deﬁned LDEV

When you crea one or more paths deﬁnedtoit. Only thetop volume in theLUSEvolume tobecreated canhaveany paths. The other volumes in the LUSE volume to be created must not have any paths.

Note

:You ca

are deﬁned t

Note

: You cannot combine a path-deﬁned LD EV or LUSE volume with a nother path-deﬁned LDEV

LUSE volume.

Note

:When y path-deﬁned LDEV or LUSE volume, a dialog box will appear with a message asking if you want to continue the

Note the following points when you perform a LUSE operation using a path-deﬁned LDEV:

Caution

•

AIX5.2 host to an LDEV, the LDEV can b e used for LUSE operations using a path-deﬁned LD EV. However, if a path is deﬁned from a host running another operating system to an LDEV, the LD EV cannot

•

Caution

LDEV and y ensure that the host mode for the Windows host is 2C (Windows Extension). If the host m o de is not 2C, you must change the host mode to 2C before performing the LUSE operation.

te a LUSE volume, the top LUSE volume can be either an LDEV or a LUSE volume that has

perform a LUSE operation using a path-deﬁned LDEV regardless of how many paths

othe LDEV.

start the LUSE operation to combine a path-deﬁned LDEV or LUSE volume with a nother

operation. Click the OK button if you want to continue or the Cancel button if you do not.

f a path

be used for LUSE operations using a path-deﬁned LDEV.

: If a path is deﬁned from a Windows 2000 host or a Windows Server 2003 host to an

is d eﬁned from a Windows 2000 host, a Windows Server 2003 host, or an

want to perform a LUSE operation that handles this path-deﬁned LDEV, you must

XP24000 LUN Expansion User's Guide

About LUSE Operations

2 Preparing for LUSE Operations

This chapter describes the environment you n eed to prepare in order to operate LUSE.

System Requirements

To operate LUN Expansion (LUSE), you need the following items:

• HP storage system (or simply storage system where app licable hereafter)

• HP StorageWo

• Licensed LUN Expansion software

Note

: To use the LUSE function, you need the software called Open Volume Management. Note that this

software is only for open systems.

Preparing to Use LUSE

Before star ting a LUSE operation on a selected storage system, make sure that you unmount the open-system volumes and/o r remove the LU paths to the open volumes. For instructions on removing LU paths, see HP StorageWorks XP24000 LUN Manager User’s Guide.

rks XP Remote Web Console computer

XP24000 LUN Expansion User's Guide

Preparing for LUSE Operations

3Using theLUSEGUI

This chapter describes the GUI for LUN Expansion (LUSE) operations.

LUN Expansion

The following components of “Launching LUN Expansion (LUSE)” on page 21.

is the

the

Window

LUN Expansion (LUSE) window. Later sections in this chapter explain

LUSE window. For instructions on how to display this window, see

Figure 2 LUSE Window

LDEV Information Tree

• The LDEV Information tree is on the upper-left corner of the LUN E xpansion tab. The LDEV

Information tree displays the LDKC (logical D KC) and CU numbers installed on the storage system.

LDEV Detail Table

• The LDEV Detail table is on the upper-right corner of the LUN Expansion tab.

The LDEV Detail table d isplays detailed information for all open-system LDEVs in the selected CU. The table displays the following information:

•

LDKC:CU:LDEV -LDEVstatusicon(see Table 4 on page 18) and the LDKC, CU and LDEV numbers. If the selected LDEV is a LUSE volume, the LDEV number of the top LDEV in the LUSE volume is displayed.

XP24000 LUN Expansion User's Guide

Note:

An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00:01#). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume (V-VOL) for HP StorageWorks XP Snapshot (for example, 00:00:01V). For details regarding V-VOLs, see HP StorageWorks XP24000 Snapshot User’s Guide.

Note

: An LDEV number that ends with a letter X indicates that the LDEV is a virtual volume (V-VOL) for HP StorageWorks XP Thin Provisioning Software (for example, 00:00:01 X). For details regarding V-VOLs, see HP StorageWorks XP24000 Thin P rovisioning Software User’s Guide.

• Emulation - Emulation type. If the selected LDEV is a LUSE volume, the emulation type is displayed with an asterisk and the number of volumes in the LUSE volume (for example, OPEN-E*5).

• Capacit y - LDEV capacity, displayed in either MB or GB, depending on which unit is selected in the

Capacity Unit box.

• RAID - RAID level of the LDEV. Note: The RAID level is left unspeciﬁed with a hyphen (-) when the LDEV is an external LU or

virtual volume (V-VOL).

• PG - Parity group. If the LDEV extends over two or more parity groups, the PG column displays the smaller parity group number.

Note:

A parity group number that starts with a let ter E indicates that the parity group consists

of one

Note:

of one

Note

of one

• Paths - Number of paths that are set for the LDEV. If this column d isplays the number of paths “LUSE Operations Using a Path-deﬁned LDEV” on page 13).

• Access Attribute - The access attribute that is set for the LDEV.

• Cache mode-Displays Disable when the cache is set to be unused for responding to an I/O I/O

• Ex-Dev Info. - Displays the drive type of external volumes. Displays an asterisk (*) for a SATA or BD external volumes and drives containing internal volumes.

• Int. VOL Info - Displays the drive types of internal volumes. Displays nothing for an FC drive containing internal volumes. Displays a hyphen (-) for a drive containing external volumes.

• CLPR -The ID of theCLPR(c The CLPR ID is a two-digit number.

Table 4 LDEV Status Icons

or more external LUs (for example, E1-1).

A pa rity group number that starts with a letter V indicates that the parity group consists

or more virtual volumes (V-VOLs) for XP Snapshot (for example, V1-1) .

: A parity group number that starts with a letter X indicates that the parity group consists

or more virtual volumes (V-VOLs) for XP Thin Provisioning. (for example, X1-1).

for an LDEV, you can use the LDEV as the top LDEV of a LUSE volume (see

request from the host, or Enable when the cache is set to be used for responding to an

request from the host.

drive containing external volumes. Nothing is displayed for FC drives containing

ache logical par tition) to which the displayed volumes belong.

Icon LDEV status

Normal LDEV

Expanded (LUSE) volume

• Capacit y Unit box - Capacity of the LDEV displayed in the Capacity column, in either GB (default

view) or MB.

• Selected LDEVs - Number of LDEVs selected in the LDEV Detail table.

LDEV Operation Detail

• Select an LDEV drop-down box - LDEVs and LUSE volumes of the selected CU that are eligible to

become part of a LUSE volume are displayed. The selected LDEV number becomes the top LDEV number of a LUSE volume.

Using

the LUSE GUI

• Volume Count drop-down box - Number of LDEVs that form a LUSE volume.

For example, if you select 3 in the Volume Count combo box, three LDEVs are expected to form a

Note:

LUSE volume, and then three LDEVs are added to the Expanded LDEVs list. an

LDEV only from the Volume Count drop-down box. You cannot select a LUSE volume.

• Expanded LDEVs list - LDEVs that are selected as LUSE volume components. An LDEV is added to

this

list when the <<Add button is selected (see below).

• Selected LD EVs - Number of LDEVs selected in the Expand ed LD EVs list.

• Number of LDEVs - Number of LD EVs displayed in the Expanded LDEVs list.

• Size - Total capacity of the LDEVs displayed in the Expanded LDEVs list, in either GB or MB.

• Free LDEVs table - LDEVs or LUSE volumes selected in the Select an LDEV drop-down box that

are eligible to become part of a LUSE volume.

Note:

The drop-down lists on the upper-right of the Free LDEVs table enable you to narrow entries

in this

table. If you select an LDKC a nd a CU from the LDKC and CU drop-down lists, the Free

LDEVs table displays only the LDEVs belonging to the selected LDKC and CU.

•

LDKC:CU:LDEV:LDEVstatus icon(see Table 4 on page 18) and the LD KC, CU, and LDEV numbers. If the selected LDEV is a LUSE volume, the LDEV number of the top LDEV in the LUSE volume is displayed.

Note:

An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00: 01# ). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume (V-VOL) for XP Snapshot (for example, 00:00:01V). For details regarding V-VOLs, see HP StorageWorks XP24000 Snapshot User’s Guide.

Note

: An LDEV number that ends with a letter X indicates that the LDEV is a virtual volume (V-VOL) for XP Thin Provisioning (for example, 00:00:01 X). For details regarding V-VOLs, see HP StorageWorks XP24000 Thin Provisioning Software User’s Guide.

• RAID : RAID level of the LDEV.

Note:

The RAID level is left unspeciﬁed with a hyphen (-) when the LDEV i s an external LU

virtual volume (V-VOL).

• PG: Parity group. If the LDEV extends over two or more parity groups, the PG column displays the

smaller parity group num ber.

Note:

A parity group number that starts with a letter E indicates that the parity group consists

of one or more external LUs (for example, E1-1).

Note:

A p arity group num ber that starts with a letter V indicates that the parity group consists

of one or more virtual volumes (V-VOLs). (for example, V1-1).

• CLPR: The CLPR number. For detailed information about C LPRs (cache logical partitions), see HP StorageWorks XP24000 Disk/Cache Partition User’s Guide.

• Selected LD EVs : Number of LDEVs selected in the Free LDEVs table.

• <<Add - Moves a selected LDEV from the Free LDEVs list to the Expanded LDEVs list.

• Delete>> - Moves a selected LDEV from the Expanded LDEVs list to the Free LDEVs list.

• Set - Creates a LUSE volume consisting of the volumes currently in the Expanded LDEVs list. The

new LUSE is displayed in LUN Expansion tab), but is not actually created until you click the Apply button.

• Apply - Implements the settings to the storage system.

• Cancel - Cancels the settings.

blue bold italics

in the LDEV Detail table (on the upper-right corner of the

You c a n select

XP24000 LUN Expansion User's Guide

Using the LUSE GUI

4 Performing LUSE Operations

Launching LUN Expansion (LUSE)

To launch LUN Expansion:

1. In theRemoteWeb Consolemainwindow, click Go, Volume Manager, and then LUN Expansion

on the The LUSE window appears. This window enables you to per form LUSE operations.

Note:

Console main

If you are going to implement any changes for LUN Expansion, you must have modify permission for LUN Expansion.

You can view t

• The LDEV Information tree displays the CU and LDEV numbers installed on the storage system

in a

• The LDEV Det

If selected a LUSE volume, the information in this table is for a ll of the LDEVs in the LUSE volume.

Note:

example, 00:00:01#). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

(V-VOL) (f Snapshot User’s Guide.

menu bar.

To exit LUSE, click the Logout button in the upper-right corner of the Remote Web

window, or end the Web browser.

current LUSE conﬁguration on the LUSE window (see Figure 2 on page 17).

hierarchical structure.

table displays detailed information for all open-system LDEVs in the selected CU.

ail

you have selected a normal LDEV, the information in this section is for the top LDEV. If you have

number that ends with a # indicates that the LDEV is an external volume (for

An LDE

An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume

example, 00:00:01 V). For details regarding V-VOLs, see HP StorageWorks XP24000

Viewing Concatenated Parity Groups

In the storage system, data can be written to an LDEV that extends over concatenated parity groups. Concatenation of parity groups enables faster access to data.

To view a concatenated parity group:

1. Make sure that Remote Web Console is in Modify mode.

For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide.

2. Select a CU number from the LDEV Information tree. The LDEV Detail table displays all LDEVs

in the

selected CU.

3. In the LDEV Detail table, select and right-click the free LDEVs that you want to form the LUSE

volume. If parity groups are concatenated, this displays the Concatenation List pop-up menu.

Note

:The Concatenation List command does not appear if the selected LDEV does not extend

over concatenated parity groups.

4. Select Concatenation List to display the Concatenation List dialog box (see Figure 3 on pa ge 22).

5. When you are ﬁnished viewing the list, click OK (or Cancel) to return to the LUN Expansion tab.

XP24000 LUN Expansion User's Guide

Figure 3 Co

Note:

A p arity group number that starts with a letter E indicates tha t the parity group consists of one or

more external LUs (for example, E1-1).

ncatenation List Dialog Box

Creating a LUSE Volume

WARNING:

Thereare threewaystocreateaLUSE volume:

• Using the LDEV Detail table(see“Creating a LUSE Volume from the LDEV Detail Table”onpage22)

• Using the LDEV Operation detail (Select an LDEV combo box) (see

“Creating a LUSE Volume from the LDEV Operation Detail (Select an LDEV Combo Box)” on page 24)

• Using the Volume Count combo box (see

“Creating a LUSE Volume Using the Volume Count Combo B ox” on page 24) (recommended)

LUSE creation is a destructive operation. Move and/or back up your data before proceeding.

Creating a LUSE Volume from th e LDEV D etail Table

To create a LUSE volume from the LDEV detail table:

1. Make sure that Remote Web Console is in Modify mode.

For detailed i Web Console User's Guide.

2. Select a CU number from the LDEV Information tree. The LDEV Detail table displays a ll LDEVs

in the

3. In the LDEV Detail table, select and right-click the normal LDEVs or LUSE volumes that you want to

form the LUSE volume. This displays the Set LUSE Volume pop-up menu.

4. Select Set LUSE Volume.

Adialogbox operation o box asks if y follow step b below. If the d isplayed dialog box is the Set LUSE Conﬁrmation dialog box, follow step c below.

a. To perform a LUSE operation on a volume that has a path deﬁnition, click OK.Ifamessage

appears and asks if you want to perform a LUSE operation that will affect more than one SLPR or CL

nformation about M odif y mode, see the HP StorageWorks XP24000 Remote

CU.

select

is displayed. If the displayed dialog box asks if you want to perform a LUSE

volume that has a path deﬁnition, follow step a below. If the displayed dialog

n a

want to perform a LUSE operation that will affect more than one SLPR or CLPR,

PR,gotostep b. If this message does not appear, go to step 5.

Performing LUSE Operations

If you do not want to perform a LUSE operation on a volume that has a path deﬁnition, click Cancel. You are returned to the previous dialog box, and then you can retry the operation.

b. To perform a LUSE operation that will affect more than one SLPR or CLPR, click OK.A

conﬁrmation dialog box appears. Then, go to step 5. If

you d o not want to perform a LUSE operation that will affect more than one SLPR or CLPR, click Cancel. You are returned to the previous dialog box, and then you can retry the

operation.

c. If the displayed dialog box is the Set LUSE Conﬁrmation dialog box, go to step 5.

5. Click OK to create the LUSE volume (or Cancel).

Note

: The new settings that appear in the window in

the

storage system. The LUSE volumes that have been created but are not yet registered to the storage system (those in created (see “Resetting an Unregistered LUSE Volume” on page 25).

6. Click Apply (or Cancel).

7. Click OK (or Cancel).

When you select and right-click the free LDEVs that you want to form a LUSE volume in the LDEV Detail table, and select the Set LUSE Volume pop-up menu, the Set LUSE conﬁrmation dialog box appears. You can verify that the LDEVs listed in the conﬁrmation dialog box are the ones you want to create aLUSEvolume.

blue bold italics

) can be reset to the state they were in before they were

blue bold italics

are not yet registered to

Figure

• LUSE components list

4Set LUSE Conﬁrmation Di a log Box

This list shows information for LDEVs that constitute the LUSE volume.

• LDKC:CU:LDEV:This ﬁ eld shows an LDEV icon. This ﬁeld also shows an LD KC number, a CU

number, and an LDEV number.

Note:

An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00: 01# ). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

Note

• Emulation:This ﬁeld shows the emulation type for the LDEV.

XP24000 LUN Expansion User's Guide

• Capacity :This ﬁeld shows the capacity for the LDEV.

• OK - Creates the LUSE volume.

Click this button to set the LUSE volume c on ﬁguration for the LDEVs in the LUSE component list. The LDEVs registered as components of the LUSE volume are displayed in the LDEV information list.

• Cancel button

This button is used to canc el the operation to create a LUSE volume using the LDEVs in the list.

Creating a LUS Combo Box)

To create a LU

1. Make sure that Remote Web Console is in Modify mode.

For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console U

2. Select a CU number from the LDEV Information tree (in the upper-left corner of the LUN

Expansion

3. Click the ar

For the LUSE

Note:

in this LDEVs table displays only the LDEVs belonging to the selected LDKC and CU.

4. Select one or more additional normal LDEVs or LUSE volumes for the LUSE volume. Click <<Add

move th

5. To delete an LDEV from the Expanded LDEVs list and move it back to the Free LDEVs list, select

one

6. Select Se

dialog box is displayed. If the displayed dialog box asks if you want to perform a LUSE operation on a volume that has a path deﬁnition, follow step a below. If the displayed dialog box asks if you want to perform a LUSE operation that will affect more than one S LPR or CLPR, follow step b below. If the d isplayed dialog box is the Set LUSE Conﬁrmation dialog box, follow step c below:

a. To perf

b. To perform a LUSE operation that will affect more than one SLPR or CLPR, click OK.A

c. If th

7. Select OK (or Cancel).

Note

the

age

stor created (see “Resetting an Unregistered LUSE Volume” on page 25).

8. Click Apply (or Cancel).

9. Cli

ck OK (or

blue bold italics

Volume from the LDEV Operation Detail (Select an LDEV

volume from the LDEV Operation detail (Select an LDEV combo box):

ser's Guide.

tab).

row button in the Select an LDEV drop-down box (in the lower-right of the window).

select the ﬁrst LDEV from the Free LDEVs list that displays available LDEVs.

The drop-down lists in the upper-right of the Free LDEVs list enable you to narrow entries

table. If you select an LDKC and a CU from the LDKC and CU drop-down lists, the Free

selected LDEVs from the Free LDEVs list to the Expanded LDEVs list.

or more volumes. Click Delete>>.

orm a LUSE operation on a volume that has a path deﬁnition, click OK.Ifamessage

and asks if you want to perform a LUSE o peration that will affect more than one

appear SLPR or CLPR, go to step b. If this message does not appear, go to step 7. If Cancel. You are returned to the previous dialog box, and then you can retry the operation.

conﬁr If CLPR, click Cancel. You are returned to the previous dialog box, and then you c an retry the

: The new settings that appear in the window in

torage system. The LUSE volumes that have been created but are not yet registered to the

you do not want to perform a LUSE operation on a volume that has a path deﬁnition, click

mation dialog box appears. Then, g o to step 7.

do not

you

operation.

displayed dialog box is the Set LUSE Conﬁrmation dialog box, go to step 7.

system (those in

want to perform a LUSE op eration that will affect more than one SLPR or

Cancel).

blue bold italics

) can be reset to the state they were in before they were

are not yet registered to

Creating a LUSE Volume Using the Volume Count Combo Box

To create a LUSE volume using the Volume Count combo box:

1. Make sure that Remote Web Console is in Modify mode.

Performing LUSE Operations

For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide.

2. Select the CU number to create the LUSE volume from the LDEV information tree.

3. Click the arrow button in Select an LDEV. Select the top LD EV of the LUSE volume from the

drop-down list. The selected top volume appears in the Expa nd ed LDEVs list. Normal LDEVs and LUSE volumes that canbeusedfor aLUSEvolumeare displayedinthe Free LDEVs list.

Note:

The drop-down lists in the upper-right of the Free LDEVs list enable you to narrow entries

in this

table. If you select an LDKC and a CU from the LDKC and CU drop-down lists, the Free

LDEVs table displays only the LDEVs belonging to the selected LDKC and CU.

4. Select the number of LD EVs needed to form a LUSE volume from the Volume Count box.

The Expanded LDEVs list displays as many LDEVs as speciﬁed in the Volume Count box. For example, if 3 is speciﬁed in Volume Count, three LDEVs appear in Expanded LDEVs. cannot from Free LDEVs,and click <<Add.

a. Select normal LDEVs or LUSE volumes from Free LDEVs to add more LDEVs to the Expanded

b. To delete LDEVs from the Expanded LDEVs list, select the LDEVs from the Expanded LDEVs

5. Click Set.

A to perform a LUSE operation on a volume that has a path deﬁnition (see “LUSE Operations Using a Path-deﬁned LDEV” on page 13 for the details on this operation), follow step a below. If the displayed dialog box is the Set LUSE Conﬁrmation dialog box (see “Creating a LUSE Volume from the LDEV Detail Table” on page 22), follow step b below.

a. If the displayed dialog box asks if you want to perform a LUSE operation on a volume that

b. If the displayed dialog box is the Set LUSE Conﬁrmation dialog box, go to step 6.

6. To create the LUSE, click OK. The selected top LDEV is displayed (in

LUSE volume in the LDEV list.

Note

(those in “Resetting an Unregistered LUSE Volume”onpage25).

7. Click Apply.

8. Click OK (or Cancel).

The setting for this LUSE o peration is registered for the storage system.

select LUSE volumes from the Volume Count box. To select LUSE volumes, select LDEVs

LDEVs list, and then click <<Add.

list, and then click Del ete>>.

dialog box is displayed. If the displayed dialog box asks if you want

has a path volumes will be expanded to a LUSE volume. Next, go to step 6. To cancel the LUSE operation, click Cancel. The screen will return to the previous dialog box, and then you can retry the operation.

deﬁnition, click OK. A message appears and informs you that the speciﬁed

blue bold italics

: The LUSE volumes thathavebeen createdbut are not yetregisteredtothe storagesystem

blue bold italics

) c an be reset to the state they were in before they were created (see

Note:

)asa

You

Resetting an Unregistered LUSE Volume

When you create a LUSE volume, it will remain highlighted in

system by clicking Apply.A LUSE volume in

stora

to the state it was in before it was created.

olume

LUSE v

Note

: This is a function that allows you to reset an unregistered LUSE volume to the state it was in before

was created. However, it does not allow you to recover any LUSE volumes that have been released

dy to the state they were in before they were created. Therefore, if the LUSE volume that you have

alrea createdconsistsofany LDEVs(thosein different LUSE volume, your LUSE volume can only be reset to the state it was in when the constituting LDEVs were released from that different LUSE volume.

rocedure to put the unregistered LUSE volume back to the state it was in before it was created

The p

this reset function is described below.

ing

surethatRemoteWeb ConsoleisinModifymode.

1. Mak

blue bold italics

) that have previously been released from a

blue bold italics

indicates that you can reset this

XP24000 LUN Expansion User's Guide

until you register it to the

For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide.

2. Select a CU number from the LDEV Information tree (in the upper-left corner of the LUN

Expansion

The LDEV Detail table (in the upper-right corner of the LUN Expansion tab) displays all LDEVs in the

3. Select an unregistered LUSE volume (in

upper-aright corner of the LUN Expansion tab). Right-click the selected LUSE volume to display a

pop-up menu that includes the Reset Selected Volume command used to execute the LUSE

volume reset operation.

4. Select Reset Selected Volume.

Adialogbox to conﬁrm the LUSE volume reset operation will appear.

5. Click OK on the dialog b ox to conﬁrm the LUSE volume reset operation.

The setting of a selected LUSE volume that is not registered yet will be reset to the state it was in before this LUSE volume was created, and the LUSE volumes or the LDEVs constituting the selected LUSE volume that has just been reset will appear in the LDEV Detail table (in the upper-right corner of the

LUN Expansion tab).

tab).

selected CU.

blue bold italics

)inthe LDEV Detail table (in the

Figure 5 Reset LUSE Conﬁrmation Dialog Box

• Unregi

• OK button

• Canc

stered LUSE volume list This list shows the LDEVs created in a LUSE volume, but not yet registered to the storage system, that youcan resetto the statetheywereinbeforetheywerecreated.

• LDKC:CU:LDEV:This ﬁeld shows an LDEV icon. This ﬁeld also shows an LDKC number, a

Note:

(for example, 00:00:01#). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

(V-VOL) for XP Snapshot (for example, 00:00:01V). For details regarding V-VOLs, see HP StorageWorks XP24000 Snapshot User’s Guide.

Note

(V-VOL) for XP Thin Provisioning (for example, 00:00:01 X). For details regarding V-VOLs, see

HP StorageWorks XP24000 Thin Provisioning Software User’s Guide.

• Emulation:This ﬁeld shows the emulation type of the L DEV.

• Capa

This button is used to reset the unregistered LUSE volume to the state it was in before it was created.

This button is used to cancel the reset LUSE operation.

er, and an LDEV numb er.

numb

An LDEV number that ends with a # indicates that the LDEV is an external volume

LDEV number that ends with a letter V indicates that the LDEV is a virtual volume

LDEV number that ends with a letter X indicates that the LDEV is a virtual volume

city:This ﬁeld shows the capacity of the LDEV.

button

Performing LUSE Operations

Releasing a LUSE Volume

WARNING:

proceeding. De To release a LUSE volume:

1. Make sure that Remote Web Console is in Modify mode.

For detailed in Web Console User's Guide.

2. Select a CU number from the LDEV Information tree (in the upper-left corner of the LUN

Expansion

displays all LDEVs in the selected CU.

3. Select a LUSE volume in the LDEV Detail table(in theupper-right cornerofthe LUN Expansion

tab). Right-c

4. Click Release LUSE Volume.

5. The Release LUSE Volume conﬁrmation dialog box displays. Verify that the LUSE volumes listed

in the

6. Click OK (or C

Note

implemented.

7. Click Apply

8. Click OK (or Cancel).

Releasing LUSE volumes is a destructive operation. Move and/or back up your data before

lete all SCSI paths to the LUSE volume that you want released.

formation about Modif y mode, see the HP StorageWorks XP24000 Remote

.The LDEV Detail table (in the upper-right corner of the LUN Expansion tab)

tab)

lick theLUSEvolumeto display the Release LUSE Volume pop-up menu.

conﬁrmation dialog box are the ones that you want released.

ancel).

: The new settings appear in the LUN Expansion tab in

the LUN Expansion tab (or Cancel).

blue bold italics

,but arenot yet

Figure 6 Release LUSE C onﬁrmation Dialog Box

Note:

If the selected LUSE volume has a path or if any volume other tha n a LUSE volume is selected, this

dialog box lists only LDEVs containing a LUSE volume to be released.

• List of LDEVs containing a LUSE volume to be released

This list shows the LDEVs containing LUSE volumes to be released.

• LDKC:CU:LDEV:This ﬁ eld shows an LDEV icon. This ﬁeld also shows an LD KC number, a CU

number, and an LDEV number.

Note:

An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00: 01# ). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

XP24000 LUN Expansion User's Guide

Note

• Emulation:This ﬁeld shows the emulation type of the L DEV.

• Capacity :This ﬁeld shows the capacity of the LDEV.

• OK button

This button is used to release the LUSE volume conﬁguration in the release list. The released LDEVs are displayed in

• Cancel button

This button is used to cancel the release LUSE operation.

blue bold italics

in the LDEV information list.

Changing LUSE Capacities

There are two ways to change the capacity of a LUSE volume:

• Expanding LUSE capacities

To expand the capacity of a LUSE volume, select the LUSE volume that you want to expand, and then add to

add, and then select a LUSE volume to be expanded. For further information, see

“Creating a LUSE Volume” on page 22.

• Reducing LU

You cannot r volume to h “Releasing a LUSE Volume” on page 27), and then redeﬁne the LUSE volume (see “Creating a LUSE Volume”onpage22).

LDEVs or LUSE volumes; or ﬁrstselectLDEVs or LUSE volumesthatyou want

capacities

educe

ave a smaller capacity, you must ﬁrst release the LUSE volume (see

the capacity of an existing LUSE volume. If you want a LUSE

Displaying a List of Volumes Combined into a LUSE Volume

A LUSE volume is a combination of multiple volumes (LDEVs). To display a list of volumes that are combined into one LUSE volume, follow the procedure below:

1. Make sure that Remote Web Console is in Modify mode.

For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide.

2. Select a LUSE volume in the LDEV Detail table (in the upper-right corner of the LUN Expansion

tab). Right-click aLUSEvolumetodisplay apop-upmenu.

3. Select LUSE Detail from the po p -up menu.

The LUSE Detail dialog box (Figure 7 on page 29) displays a list of volumes (LDEVs) com bine d into the LUSE volume. After viewing this list, click Close to close the dialog box.

Performing LUSE Operations

Detail Dialog Box

Figure 7 LUS

• LDKC:CU:LDEV:This ﬁeld shows an LDEV status icon. This ﬁeld also shows the LDKC, CU, and

LDEV numbers of an LDEV.

Note

:An LDE example, 0 0:00:01 #). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide.

Note:

for XP Snap XP24000 Snapshot User’s Guide.

Note

: An LDEV number that ends with a letter X indicates that the LDEV is a virtual volume (V-VOL) fo

StorageWo

• Capacity:This ﬁeld shows the LDEV capacity.

• RAID:This ﬁeld shows the R AID level of the LDEV.

Note

:The or

virtual volume (V-VOL) .

• PG:This ﬁeld shows the parity group number.

Note

: A pa rity group number that starts with a letter E indicates that the parity group consists of one

or more external LUs (for example, E1-1).

Note

:A pa of

one or

• CLPR:This ﬁeld s hows the CLPR number. For detailed information about CLPRs (cache logical

partitions), see HP StorageWorks XP24000 Disk/Cache Partition User's Guide.

• Close but ton: This button closes the LUSE Detail dialog box.

number that ends with a # indicates that the LD EV is an external volume (for

An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume (V-VOL)

shot (for example, 00:00:01V) . For details regarding V-VOLs, see HP StorageWorks

rXPThinProvisioning(forexample, 00:00:01 X). For details regarding V-VOLs, see HP

rks XP24000 Thin Provisioning Software User’s Guide.

RAID level is left unspeciﬁed with a hyphen (-) when the LDEV is an external LU

rity group number that starts with a letter V indicates that the parity group consists

more virtual volumes (V-VOLs) (for example, V1-1).

XP24000 LUN Expansion User's Guide

Performing LUSE Operations

5 Troubleshootin g

Troubleshooting LUN Expansion

• For troubleshooting information for the storage system, see the HP StorageWorks XP24000

Disk Array Owner's Guide.

• For troubleshooting information for the Remote Web Console software, see the HP StorageWorks

XP24000 Remote Web Console User’s Guide.

• For information about the Remote Web Console error codes, see the HP StorageWorks XP24000

Remote Web Console Error Codes.

Calling HP T

If you need t problem as possible. Include the circumstances surrounding the error or failure, the Remote Web Console conﬁguration information saved in the ﬂoppy diskettes by the FD Dump Tool,the exact content of messages displayed on the Remote Web Console, and the severity levels and reference codes displayed on the

Status tab in the Remote Web Console Main window (see the HP StorageWorks XP24000 Remote

Web Consol

For worldwide technical s upport information, see the HP support website:

ttp://www.hp.com/support

echnical Support

call HP technical support, make s ure you can provide as much information about the

Error Codes).

XP24000 LUN Expansion User's Guide

Troubleshooting

AGlossary, Acronyms, and Abbreviations

Table 5 Glossary, Ac ronyms, and Abbreviations

Cache extents CU

Custom access

DASD DKCMAIN ESCON Enterprise System Connection FD FD Copy Cache Residency Manager dynamic cache residency GB

KB LAN LBA LDEV LU LUN

Areas used for Cache Residency Manager control u nit A feature that a llows a non-administrator to be assigned update access to

one

or m ore of the restricted Remote Console functions direct access storage device disk controller main

ﬂoppy disk ﬂoppy disk copy

gigabyte

kilobyte local-area network logical block address logical device logical unit logical unit number

LUN Manager LUSE LVI MB MIB

Parity group

RMCMAIN R-SIM SCSI

ShadowImage

SIM

Remote Consolesoftwareoption Logical Unit Size Expansion logical volume image (also called device emulation) megabyte message information block A set of hard disk drives that have the same capacity and are treated as

one

group. A parity group contains both user data and parity information, which allows the user data to be accessed in the event that one or more of the drives within the group are not available.

remote console main software remote service information message. small computer system interface HP Multi-RAID Coupling Feature and/or HP Open Multi-RAID Coupling

Feature. service information message (generated by a disk controller when it

detects an error or service requirement)

XP24000 LUN Expansion User's Guide

SSID SVP TCP/IP transmission control p rotocol/internet protocol TID target ID

storage subsystem ID service proces

sor

Trap

UCB

Volser

VMA

WWN

An SNMP agent initiates trap operations when R-SIMs occur in order to send the R-SIMs to the SNMP manager. An SNMP agent can be conﬁgured to d

unit control block volume serial number (mainframe volume identiﬁer, not related to the

LDEV ID) volume manag Worldwide Name, which is a unique identiﬁer for a particular open-system

host, consisting of a 64-bit physical address (the IEEE 48-bit format with 12-bit extension and 4-bit preﬁx)

eliver traps to more than one SNMP manager.

ement area

Glossary, Acronyms, and Abbreviations

Index

audience, 7

Before launching LUN Expansion,15

conventions

document, 8 storage capacity values, 8

Create

LUSE volume,19

Create a LUSE Volume

methods,22

document

conventions, 8 related documentation, 7

documentation

website, 7

providing feedback, 9

Enable LUN Expansion,15 Expanded LDEVs

create,25

GUI,17

help

obtaining, 8

technical support, 8

LDEV,11 LDEV Detail Table

create,22 overview,17

LDEV status icons,18

logical volume,11 LUN Expansion,11 LUN Expansion GUI,17 LUSE,11

function,11 guidelines,12

LUSE Operations

Releasing a LUSE volume,27

LUSE operations

Changing LUSE capacities,28 Creating a LUSE Volume,22 Creating a LUSE volume,22 Releasing a LUSE volume,27

LUSE window,17

Overview

LUSE operations,11

Preparing to use LUSE,15

related documentation, 7 Releasing a volume

LUSE,27

storage capacity values

conventions, 8

storage systems

supported models, 7 Subscriber's Choice, HP, 9 System Requirements,15

technical s upport

HP, 8

service locator website, 9 Troubleshooting,31

Volume Count

deﬁnition,19

XP24000 LUN Expansion User's Guide

websites

HP, 9 HP Subscriber's Choice for Business, 9 product manuals, 7

HP XP20000, XP24000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About t his Guide

Intended Audience

Related Documentation

Document Conventions

Conventions for Storage Capacity Values

Window Illustrations

HP Technical Support

Subscription Service

HP Websites

Documentation Feedback

1About LUSE Operations

Overview of HP StorageWorks XP LUN Expansion (LUSE)

LUSE Function

LUSE Guidelines

2 Preparing for LUSE Operations

System Requirements

Preparing to Use LUSE

3Using theLUSEGUI

4 Performing LUSE Operations

Launching LUN Expansion (LUSE)

Viewing Concatenated Parity Groups

Creating a LUSE Volume

Resetting an Unregistered LUSE Volume

Releasing a LUSE Volume

Changing LUSE Capacities

Displaying a List of Volumes Combined into a LUSE Volume

5 Troubleshootin g

Troubleshooting LUN Expansion

AGlossary, Acronyms, and Abbreviations

Index