HP 200 User Manual

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HP StorageWorks XP Disk/Cache P

XP12000/XP10

000 Disk Arrays and SVS 200

artition user guide for

Part number: T1722–96010 Eighth edition: September 2007

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Legal and notice information

12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license.

The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Microsoft, Windows, Windows XP, and Windows NT are U.S. registered trademarks of Microsoft Corporation. Java is a US trademark of Sun Microsystems, Inc. UNIX is a registered trademark of The Open Group.

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Contents

Aboutthisguide .......................... 7

Supported storage platforms and ﬁrmware............................ 7

Intendedaudience...................................... 7

Prerequisites ........................................ 7

Relateddocumentation.................................... 7

Documentconventionsandsymbols .............................. 8

HPtechnicalsupport..................................... 8

Subscriptionservice ..................................... 9

HPwebsites......................................... 9

Documentationfeedback ................................... 9

1OverviewofXPDisk/CachePartition................. 11

XPDisk/CachePartitionfeatures................................ 11

Cachelogicalpartitions(CLPRs) .............................. 11

Storagemanagementlogicalpartitions(SLPRs)....................... 13

Partitionadministrationandadministratorrights ........................ 14

2AccessingXPDisk/CachePartition.................. 17

3WorkingwithCLPRs . ...................... 19

CreatingCLPRs ...................................... 21

DeletingCLPRs ...................................... 22

MigratingparitygroupsinCLPRs............................... 23

4WorkingwithSLPRs . ...................... 25

AdministeringSLPRs .................................... 27

CreatingSLPRs ...................................... 28

DeletingSLPRs ...................................... 29

MigratinganSLPR'sresources................................ 30

Displayingerrormessages ................................. 31

5Troubleshooting . ........................ 33

6Notes,restrictions,andrequirements................ 35

CLPRs .......................................... 35

SLPRs .......................................... 35

Index .............................. 37

HP StorageWorks

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Figures

ExampleofaCLPR............................... 12

ExampleofanSLPR .............................. 14

Partition D

Partition Deﬁnitionpane(CLPRselected)...................... 19

Partition Deﬁnitionpane(SLPRselected)...................... 25

eﬁnitionpane(initialpaneorSubsystemselected) ............. 17

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Tables

1 2

3 4 5

Documentconventions .............................. 8

Capacity for data in a hard disk drive associated with a CLPR and standard cache capacity 13

CommandViewusergrouppermissions...................... 15

XPRemoteWebConsolemappingtoCommandViewusers ............. 15

XPRemoteWebConsoleandCommandViewdefaultusers ............. 15

GeneraltroubleshootingforXPDisk/CachePartition ................ 33

HP StorageWorks

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About this guide

This guide provides information about:

• Understanding XP Disk/Cache Partition

• Understanding partition administration and administrator rights

• Accessing XP Disk/Cache Partition

• Working with CLPRs

• Working with SLPRs

• Troubleshooting XP Disk/Cache Partition

Supported st

In this guide

• HP StorageWorks XP12000 Disk Array

• HP StorageWorks XP10000 Disk Array

• HP StorageW

For informa user guide

orage platforms and ﬁrmware

,the term array refers to the following storage platforms:

orks 200 Storage Virtualization System

tion about required ﬁrmware versions, see the HP StorageWorks XP Remote Web Console for XP12000/XP10000/SVS200.

Intended audience

This guide is intended for customers and HP-authorized service providers with knowledge of:

• Disk array hardware and software

• Data processing and RAID storage subsystems and their basic functions

NOTE:

The functions described in this manual may be limited, depending on your assigned level of user access. Some users will have read-only access while others will have limited or full array access. For additional information on users and user groups, please see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

Prerequisites

Prerequisites for using this product include:

• Installing the HP StorageWorks disk array(s)

• Installing the license key for this product

Document conventions and symbols

Table 1 Docume

Convention

Blue text: Table 1 Blue, underlined text: http://www.hp.com

Bold text

Italic text Text emphasis

Monospace text

Monospace, italic text

Monospace, bold text

nt conventions

Element

Cross-reference links and e-mail addresses

site addresses

web

• Keys that are pressed

• Text typed into a GUI element, such as a box

• GUI elements that are clicked or selected, such as

menu and list items, buttons, and check boxes

• File and directory names

• System output

• Code

• Commands, their arguments, and argument values

• Code variables

• Command variables

Emphasized monospace text

CAUTION:

Indicates that failure to follow directions could result in damage to equipment or data.

IMPORTANT:

Provides clarifying information or speciﬁc instructions.

NOTE:

Provides additional information.

TIP:

Provides helpful hints and shortcuts.

HP technical support

Telephone numbers for worldwide technical support are listed on the HP support website:

ttp://www.hp.com/support/

About this guide

Page 9

Collect the following information before calling:

• Technical support registration number (if applicable)

• Product serial numbers

• Product model names and numbers

• Error messages

• Operating system type and revision level

• Detailed, speciﬁcquestions

For continuous quality improvement, calls may be recorded or monitored.

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/

• http://www.hp.com/support/downloads/

• http://www.hp.com/support/rwc/manuals/

Documentation feedback

HP welcomes your feedback. To make co

storaged

mments and suggestions about product documentation, please send a message to

ocs.feedback@hp.com. All submissions become the property of HP.

HP StorageWorks

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About this guide

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1OverviewofXPDisk/Cache Partition

HP StorageWorks XP Disk/Cache Partition enables logical partitioning of the resources in the array. HP StorageWorks XP Disk/Cache Partition contains the cache logical partition function (CLPR) and the storage management logical partition function (SLPR).

The cache logical partition function enables you to partition the built-in cache memory in the array into multiple virtual cache memories. By allocating the partitioned virtual cache to a host, the I/O performance of other hosts can be protected from decreasing even if one host issues many I/O requests.

The storage management logical partition function enables you to partition an array into multiple virtual arrays. By having multiple virtual arrays, your data is better protected from risks, such as accidently destroyed data.

XP Disk/Cache Partition features

XP Disk/Cache Partition has two components:

• Cache logical partitions (CLPRs)

• Storage m

Cache logical partitions (CLPRs)

anagement logical partitions (SLPRs)

If one array is shared with multiple hosts, and one host reads or writes a large amount of data, the host's read and write data might occupy a large area in the array's cache memory. In this situation, other hosts slow down the read/write speed because other hosts must wait to write to cache memory. To prevent this situation, the cache logical partition function in XP Disk/Cache Partition partitions the array's cache memory. Partitioned cache memories are used as virtual cache memories, and each of them is allocated to each host. As a result, this prevents the situation where the speciﬁed host exclusively uses most of cache memory.

Figure 1 shows how a corporation's cache memory is partitioned to three virtual cache memories.

Each virtual cache memory is allocated to each host in the three branch ofﬁces. Branch A's host is inputting and outputting a large amount of data to or from the array. However, the read and write data of Branch A's host does not occupy cache memory because the cache capacity that Branch A's host canuse is limitedto 40GB. Even if Branch A'shost accessesalargeamountofdata, thehosts of other branches do not slow down the read/write speed because of the amount of data Branch A is accessing. The hosts of other branches can always use up to 40 GB of cache area.

IMPORTANT:

Disk/cache partitioning for the SVS200 can be increased up to 8 CLPR and SLPRs with additional licensing(theSVS200ships with alicense forone SLPR andfourCLPRs).

The virtual cache memory that the cache logical partition function partitions is referred to as the CLPR. Up to 32 CLPRs including CLPR0 which is provided as a default can be created in one subsystem. For more information, see Creating CLPRs.

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Figure 1 Example of a CLPR

To create a CLPR, allocate the parity groups to CLPR. For instructions on allocating parity groups, see

Working with CLPRs.

To create and manage a CLPR, you need user authority for the array. For more information about user authority, see Partition administration and administrator rights and the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

To manage cache memory using the functions in XP Cache LUN or Partial Cache Residence (PCR), you can set up the cache area for XP Cache LUN and PCR in each CLPR. For more information, see the HP StorageWorks XP Cache LUN user guide for the XP12000/XP10000/SVS200.

• Capacity criteria when creating a CLPR

If you create a CLPR, use the following formula to calculate the cache capacity allocated to the CLPR. Cache capacity (GB) = Standard cache capacity (GB) + ↑ ((Cache Residency capacity (MB) +

PCR capacity MB))/2,048) ↑ x2GB

NOTE:

The PCR capacity (MB) described in the formula is the Partial Cache Residence capacity (MB). For more information about standard cache capacity, see Table 2.

Overview of XP Disk/Cache Partition

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Table 2 Capacity for data in a hard disk drive associated with a CLPR and standard cache capacity

Capacity for data in CLPR

Standard cache capacity

NOTE:

To calculate t formulas:

Number of pari Number of parity groups: capacity of one disk x 6 x (6D+2P) Number of parity groups: capacity of one disk x 7 x (7D+1P) Number of par

NOTE:

To add cache memories to the local array, install them with Standard Cache Access Model or High Performance Cache Access Model mode. If the local array has additional printed circuit boards (PCBs), you must use the High Performance Cache Access Model mode. For more information about additional cache memories, contact your HP account support representative.

• RestrictiononCLPRand CU group

he capacity for data in a hard disk drive associated with a CLPR, add the following

ty groups: capacity of one disk x 3 x (3D+1P)

ity groups: capacity of one disk x 2 x (2D+2D)

to 0.7TB to 2.6TB to 8.5TB

4GB

8GB 12GB 16GB 20GB

to 14.4TB

to 20.3TB 20.3TB or

24GB

You cannot allocate parity groups belonging to different CU groups to a CLPR other than CLPR0. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

Storage ma

An array ca an enterp one array other or array be The sto resources (that is, ports and CLPRs) to multiple virtual arrays. Each virtual array can be accessed by only its administrator. Therefore, this prevents the risk that an administrator will destroy another organization's volume

In a non parti groups (PGs) and cache in the non-partitioned environment. After the array is partitioned, CLPR0 contains the remaining PGs and cache that are not allocated to other CLPRs.

Figure 2 shows an example of when one array is partitioned into two virtual arrays. Each virtual array is

alloc ente admi

IMPORTANT:

Disk/cache partitioning for the SVS200 is limited to one SLPR and four CLPRs.

nagement logical partitions (SLPRs)

n be shared with multiple organizations, for example, enterprises and departments within rise. Therefore, multiple administrators who belong to different organizations might manage . This creates the potential for an administrator who belongs in one organization to destroy

ganizations' volumes. Furthermore, it can complicate and increase the difﬁculty of managing the

cause of an incorrect operation by an administrator and its inﬂuence on other organizations.

rage management logical partition function in XP Disk/Cache Partition allocates all of an array's

s or leak another organization's data.

-partitioned environment, a full array is considered one single partition SLPR0. After the array is

tioned, SLPR0 becomes the unpartitioned portion of the array. Similarly, CLPR0 contains all parity

ated to two enterprises respectively. In this case, enterprise A's array administrator can manage

rprise A's virtual array, but cannot manage one of enterprise B's arrays. Similarly, enterprise B's array

nistrator can manage enterprise B's virtual array, but cannot manage one of enterprise A's arrays.

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The virtual array created by the partitioned array is referred to as the storage management logical partition (SLPR). You can create up to 32 SLPRs, including SLPR0 which is provided as a default in one array (with the exception of the SVS200). For more information, see Creating SLPRs.

Figure 2 E

To create an SLPR, allocate the array's resources (that is, ports and CLPRs). For instructions on allocating the array's resources, see Working with SLPRs. To create and manage a CLPR, you need user authority for the array. For more information, see Partition administration and administrator rights and the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

• Restri

You can

NOTE:

If you a SLPR0, you cannot use the resources:

•CU40-7F

•CU80-B

•CUC0-FE Do not allocate resources belonging to these CU groups to an SLPR other than SLPR0.

xample of an SLPR

ctiononSLPRand CU group

not allocate array resources belonging to different CU groups to an SLPR other than SLPR0.

llocate local array resources belonging to the following CU groups to an SLPR other than

Partition administration and administrator rights

The following groups of users can access XP Disk/Cache Partition:

• Administrators who have modify access to the full array.

• StorageAdmins who have modify access. This group consists of users who have full array access

and users who have partition-level access.

Overview of XP Disk/Cache Partition

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• Users who have read-only access. This group consists of users who have full array access and

users who have partition-level access

Table 3 Command View user group permissions

User group

Administrators

StorageAdmins Users

Table 4 XP Rem

Permissions

• Modify all managed arrays

• Administer partitions

• Administer Command View framework

• Create other users

Read and modify privileges for assigned arrays/partitions only Read-only pr

ote Web Console mapping to Command View users

User group

Storage Administrator with super-user permissions (create users and administer partitions)

Storage Administrator with general permissions

Storage Partition Administrator with super-user permissions

Storage Partition Administrator with general permissions

ivileges for assigned arrays/partitions

Permissions

• Modify entire array

conﬁguration

• Administer partitions and users

• Download/restore

administrative backup lists

• Conﬁgure XP Remote Web

Console settings (for example, client timeout values)

Modify e

• Access assigned partitions only

• Modify partition conﬁguration

• Create and manage other

• Access assigned partitions only

• Manage assigned partitions

ntire array conﬁguration

users for assigned partitions only

Command View user group

Administrators

StorageAdmins

Not applicable (new capability in theXPRemoteWeb Console)

Users

NOTE:

The Command View Users groupismappedtothe XP Remote Web Console Users group with modify permissions disabled.

Table 5 XP Remote Web Console and Command View default users

User group

Storage Administrator with super-user permissions

age Administrator with general permissions

Stor Storage Partition Administrator with super-user

permissions Storage Partition Administrator with general

permissions

Command View and XP Remote Web Console

administrator/administrator None None

user/user

NOTE:

The default, “user” has modify permissions disabled by default.

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Overview of XP Disk/Cache Partition

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2 Accessing XP Disk/Cache Partition

1. Launch Command View XP or XP Remote Web Console.

2. Click the Install button (

3. Click the Partition Deﬁnition tab.

). The License Key pane appears.

Figure 3 Partition Deﬁnition pane (initial pane or Subsystem selected)

• Tree: Displays SLPRs in the array. The SLPR number and name appear to the right of the SLPR

icon ( SLPRs belonging to a CU group other than the current CU group have this icon (

out.

• Subsys

• No.:List's line number.

• Item:Type of resource. Storage Partition appears in this column

• Name:

• Cache (Num. of CLPRs): SLPR's cache capacity and number of CLPRs in the SLPR.

)

)and aregrayed

tem resource list: Displays information about SLPRs belonging to the current CU group.

SLPR's number and name.

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NOTE:

For SLPR0, the cache capacity and number of CLPRs appear as follows:

• Cache capacity: Value is calculated by subtracting the capacity of the cache belonging to a

CU group other than the current CU group from the cache capacity that SLPR0 has.

• Number of CLPRs: Value is calculated by subtracting the number of CLPRs belonging to a CU

group other than the current CU group from the number of CLPRs that SLPR0 has. Regardless of which CU group is selected, CLPR0 is added as one CLPR.

• Num of PGs: Number of parity groups the SLPR has.

NOTE:

For SLPR0, the value is calculated by subtracting the number of parity groups belonging to a CU group other than the current CU group from the number of parity groups that SLPR0 has.

• Num of Ports: Number of ports the SLPR has.

NOTE:

For SLPR0, the value is calculated by subtracting the number of ports belonging to a CU group other than the current CU group from the number of ports that SLPR0 has.

• Status: If the SLPR has been edited, the status appears in the right-most column.

• Change: SLPR's information, such as SLPR name, has been changed.

• Delete : SLPR has been deleted.

• Apply:Applies settings.

NOTE:

You can make changes for more than one CU group before implementing the settings.

• Cancel Cancels settings that were entered or selected, and restores settings to their initial values.

Accessing XP Disk/Cache Partition

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3Working with CLPRs

Figure 4 Partition Deﬁnition pane (CLPR selected)

• CU: Displays the selected CU's parity groups in the CLPR resource list.

NOTE:

You cannot specify the number of a CU belonging to a CU group other than the current CU group. To change the CU group, use the drop-down list for CU groups in the upper right of the XP Remote Web Console main pane. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

• Tree: Lists the array's SLPRs and CLPRs. The SLPR number and name appear to the right of the

SLPR icon (

SLPRs belonging to a CU group other than the current CU group have this icon ( out. CLPRs belonging to a CU group other than the current CU group have this icon (

grayed out. You cannot select these SLPRs and CLPRs.

• CLPR resource list: Displays information about the selected CLPR.

• No.:List's line number.

• Resource Type:Type of CLPR resource. Parity Group appearsinthiscolumn.

• Address: Parity group's address. If the address begins with E (for example, E1-1), the parity

group contains external LUs. If the address begins with V (for example, V1-1), the parity group contains virtual volumes.

• Properties: For a parity group containing internal volumes of the array, the parity group's

capacity and the RAID conﬁguration appear. For a parity group containing external LUs, the

). The CLPR number and name appear to the right of the CLPR icon ( ).

)and aregrayed

)and are

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external LUs' capacity appears, but the RAID conﬁguration does not appear. For a parity group containing virtual volumes, the capacity of virtual devices (VDEVs) appears, but the RAID conﬁguration does not appear.

• Emulation:Parity group's emulation type.

• Information:If an LU is available with On Demand, On Demand appears. To make the LU

available, use the On Demand pane. See the HP StorageWorks Command View XP Advanced Edition Device Manager Server installation and conﬁguration guide or the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

• Detail for CLPR: Selected CLPR's settings. You must change the CLPR's settings.

• CLPR Name: CLPR's name, up to 16 alphanumeric characters.

NOTE:

You cannot change the name of CLPRs that have this icon (

) and are grayed out. To change theirnames,switchthe CU groupusing thedrop-down list forCUgroupsinthe upperright of theXPRemoteWeb Consolemainpane.

• Cache Size: CLPR's cache capacity. Must be between 4 GB and 252 GB in 2 GB increments.

The default is 4 GB.

• Cache LUN XP Size: Cache Residency's cache capacity. Must be between 0 and 252 GB

in 0.5 GB increments. The default is 0 GB.

NOTE:

The value you select for this CLPR must be bigger than the Cache Residency cache's capacity that has already been deﬁned for this CLPR using Cache LUN XP. Check the size of Cache Residency that has already been deﬁned in XP Cache LUN before changing the value.

• Number of Cache LUN XP Areas: Number of Cache Residency areas. Must be between 0 and 4,0

96. The default is 0.

NOTE:

ue selected for this CLPR must be bigger than the number of Cache Residency areas that

The val have al Reside

ready been deﬁned for the CLPR using Cache LUN XP. Check the number of Cache

ncy areas that have already been deﬁned in XP Cache LUN before changing the value.

• Partial Cache Residence Size: Partial Cache Residence's (PCR's) cache capacity. Must be between 0 and 252 GB in 0.5 GB increments. The default is 0 GB.

NOTE:

Thevalue selected forthisCLPRmustbebiggerthanthe totalamountofPartial CacheResidence that has already been deﬁned for this CLPR using Cache LUN XP. Check the total amount of Partial Cache Residence that has already been deﬁned in XP Cache LUN before changing the value.

NOTE:

You cannot change the capacity value of CLPR0 directly. If you change another CLPR's capacity, thedifferenceisreﬂected in CLPR0's capacity.

NOTE:

The maximum available cache capacity (capacity of mounted cache minus total amount of usage for other CLPRs) appears for each upper limit of Cache Size, Cache LUN XP Size, Number of Cache LUN XP Areas,and Partial Cache Residence Size.

Working with CLPRs

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NOTE:

The remaining capacity, which is calculated by subtracting Cache LUN XP Size and Partial

Cache Residence Size from Cache Size, must be 4 GB or more in CLPR0. If you changed Cache Size, Cache LUN XP Size,or Partial Cache Residence Size, verify that the capacity

calculated by subtracting Cache LUN XP Size and Partial Cache Residence from Cache Size remains 4 GB or more in CLPR0.

NOTE:

For more information about XP Cache LUN and Partial Cache Residence, see the HP StorageWorks Cache LUN XP user guide for the XP12000/XP10000/SVS200.

• Apply: Applies settings.

NOTE:

You can make changes for more than one CU group before implementing the settings.

• Cancel: Cancels settings that were entered or selected, and restores settings to their initial values.

Creating CLPRs

If you have not yet created a CLPR, the entire cache appears in CLPR0 in the Partition Deﬁnition pane. To partition the cache, create a CLPR. The created CLPR can be allocated to each SLPR. CLPRs can be created in a selected SLPR.

IMPORTANT:

Disk/cache partitioning for the SVS200 is limited to one SLPR and four CLPRs.

NOTE:

Only the Administrators can create CLPRs.

NOTE:

If you create a CLPR, the default cache size is 4 GB. To create a CLPR, the desired cache size is allocated from CLPR0 (entire cache).

NOTE:

To create a CLPR, the remaining cache size, which is calculated by subtracting Cache LUN XP Size and Partial Cache Residence Size from the Cache Size of CLPR0, must be 4 GB or more.

1. Conﬁrm the current CU group in the drop-down list for CU groups at the top of the pane.

NOTE:

To change the CU group, select the desired CU group from the drop-down list for CU groups in the upperright of theXPRemoteWeb Consolemainpane. Formoreinformation about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

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2. Right-clickanSLPRinthe tree,and select Create CLPR. The CLPR is added to the tree.

3. Select a CLPR in the tree. Information about the selected CLPR appears in the Detail For CLPR section.

NOTE:

If a CLPR has this icon ( CU group, return to step 1.

4. Change CLPR settings as needed.

5. Click Apply. The progress bar appears.

NOTE:

Even though you clicked Apply, the parity groups have not been allocated to a CLPR yet.

6. To allocate parity groups to a CLPR, migrate the parity groups from another CLPR (see Migrating

parity group

NOTE:

To change an e

Deleting CLPRs

) and is grayed out, you cannot select the CLPR. To change the

sinCLPRs).

xisting CLPR's settings, repeat step 3 through step 6.

If you delete a CLPR, the resources (that is, parity groups) in the CLPR are automatically returned to CLPR0.

NOTE:

The CLPRs which are not necessary may be deleted. Note, that you cannot delete CLPR0.

1. Conﬁrm the

Remote Web Console main pane.

NOTE:

To change the CU group, select the desired CU group from the drop-down list for CU groups in the upper right of the XP Remote Web Console main pane. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

2. Right-click the CLPR you want to delete in the tree, and select Delete CLPR.The selected CLPR is

deleted from the tree.

NOTE:

If a CLPR has this icon ( CU group, return to step 1.

3. Click Apply. A progress bar appears.

current CU group in the drop-down list for CU groups in the upper right of the XP

) and is grayed out, you cannot select the CLPR. To change the

NOTE:

To delete the CLPR to which parity groups are allocated, move the parity groups that are allocated to theCLPR you aregoing to delete to anotherCLPR. Before youdelete the CLPR,makesure thatno parity group is allocated to that CLPR.

Working with CLPRs

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Migrating pari

You can migrate parity groups in a CLPR to another CLPR.

NOTE:

You cannot migrate parity groups to a CLPR belonging to a CU group other than the current CPLR.

NOTE:

Multiple parity groups that construct the concatenated parity group must belong to the same CLPR.

NOTE:

You cannot migrate the parity group that contains the LDEVs to which the Cache Residency cache extents is deﬁned to another CLPR.

1. Conﬁrm the current CU group in the drop-down list for CU groups in the upper right of the XP

Remote Web Console main pane.

NOTE:

ty groups in CLPRs

2. Double-click the SLPR in the tree. CLPRs appear under the speciﬁed SLPR in the tree.

3. Select a CLPR from the tree. The selected CLPR's resource list appears.

NOTE:

If a CLPR has this icon ( CU group, return to step 1.

4. Right-click the parity groups you want to migrate from the CLPR, and select Cut.

NOTE:

Youcan select themultipleparitygroups.

5. Right-click the CLPR you want to migrate the parity groups to, and select Paste Parity Group.The

selected parity groups are added to the CLPR resource list.

NOTE:

YoumustselectaCLPR that hasthisicon(

6. Click Apply The progress bar appears.

) and is grayed out, you cannot select the CLPR. To change the

) and black characters for the destination CLPR.

HP StorageWorks

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Working with CLPRs

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4 Working with SLPRs

Figure 5 P

• Tree: Displays SLPRs and CLPRs in the array. The SLPR number and name appear on the right of

the SLPR

SLPRs belonging to a CU group other than the current CU group have this icon ( out. CLPRs belonging to a CU group other than the current CU group have this icon (

grayed out. You cannot select these SLPRs and CLPRs.

• SLPR re

and ports) belonging to the current CU group.

NOTE:

If you select SLPR0 in the tree, all resources (CLPRs and ports) that have not been allocated to any SLPRs yet appear.

NOTE:

Information about CLPR0 appears regardless of which CU group is selected.

• No.:List's line number.

• Resource Type:Type of the SLPR's resources: Cache Partition or Port.

• Name:CLPR or port name.

artition Deﬁnition pane (SLPR selected)

icon (

source list: Displays information about resources in the speciﬁed SLPR (that is, CLPRs

If theresource typeis Cache Partition, the CLPR number and name appear.

). The CLPR number and name appear on the right of the CLPR icon ( ).

)and aregrayed

)and are

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If theresourcetypeis Port, the port name appears.

• Properties: CLPR's capacity and number of parity groups allocated to the speciﬁed CLPR.

NOTE:

The number of parity groups for CLPR0 is calculated by subtracting the number of parity groups belonging to CU groups other than the current CU group from the total number of parity groups that CLPR0 has.

• Information: Channel adapter name, if the resource type is Port.

• Status: If the SLPR's resources (CLPRs and ports) have been edited, the SLPR's status appears in the right-most column.

• Create: A CLPR or port has been created.

• Delete: A CLPR or port has been deleted.

• Detail for SLPR: Displays the SLPR's settings. You can change the SLPR's settings.

• SLPR Name: SLPR's name, up to 32 alphanumeric characters.

NOTE:

You cannot change the name of SLPRs that have this icon (

) and are grayed out. To change theirnames,switchthe CU groupusing thedrop-down list forCUgroupsinthe upperright of theXPRemoteWeb Consolemainpane.

• CU(* in use):CU number in the speciﬁed SLPR (00-FE). ACUnumber withanasterisk(*)

indicate to the Ava

s the SSID is registered to the CU. To delete a CU from the speciﬁed SLPR and return it

ilable CU list, select the CU from the list, and click Delete.

NOTE:

The numbe

r of a CU belonging to a CU group other than the current CU group does not appear.

• Available CU(* in use):

• CU: Number of the CUs belonging to the current CU group. A CU number with an asterisk

(*) indicates that the SSID is registered to a CU.

• SLPR: SLPR to the CU belongs to.

• SSID(SLPR): SSID if the SSID is registered to a CU. The SLPR the SSID belongs to appears

between parentheses on the right of the SSID. To add a CU to the speciﬁed SLPR and return the CU to the CU list, select the CU from the list,

and click Add. A CU number with an asterisk (*) indicates the SSID is registered to the CU. You can select up to 64 CUs into which the SSIDs are registered or not.

NOTE:

If users in the StorageAdmins group who have partition-level access want to use the Customized Volume function, ﬁrst specify the CU for each SLPR to prevent overlapping the newly allocated CU numbers and the existing CU numbers in other SLPRs. If CU numbers are not speciﬁed ﬁrst, users in the StorageAdmins group who have partition-level access cannot use the Customized Volume function.

• SSID(* in use): SSIDinthe selected SLPR (0004toFFFE).AnSSIDnumber with anasterisk(*) indicates the SSID is registered to the CU.

NOTE:

Only SSIDs registered to a CU belonging to the current CU group appear for SLPR0.

Working with SLPRs

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NOTE:

If acustomizedvolume(CV)isset usingthe Customized Volume function,and theCUnumber and SSID are registered to different SLPRs, a dash (-) appears to the right of the SSID. For more information, see the HP StorageWorks LUN Conﬁguration and Security Manager XP user guide for the XP12000/XP10000/SVS200.

• From: Starting number of the SSID added to the speciﬁed SLPR (0004 to FFFE). You can enter

an SSID that is in SLPR0.

• To: Last number of the SSID added to the speciﬁed SLPR (0004 to FFFE). You can enter

up to 256 SSIDs that are in SLPR0.

NOTE:

To add SSIDs to an SLPR, enter the starting number in From,enter thelast number in To,and click Add.

NOTE:

If you add mul number.

NOTE:

To delete an SSID from the SSID box, select the SSID from the SSID box, and click Delete.

tiple SSIDs to the speciﬁed SLPR, the To number must be smaller than the From

NOTE:

If users in the StorageAdmins group who have partition-level access use the Customized Volume function, ﬁrst specify the SSID number for the SLPR to prevent overlapping newly allocated SSID numbers and existing SSID numbers in another SLPR.

• Apply: Applies settings.

NOTE:

You can make changes for more than one CU group before implementing the settings.

• Cancel: Cancels settings entered or selected, and restores settings to their initial values.

Administering SLPRs

Only storage administrators can make settings for SLPR0. A storage partition administrator only has authority within the assigned storage logical partition. The storage administrator can also assign write permission for one or more of the following functions:

• Volume Manager

• XP LUN Security Extension

• LUN Manager

• XP Cache LUN

• XP Auto LUN

The following is the general procedure required for preparing and administering the array with SLPRs. Only Administrators can perform this procedure.

1. Create an SLPR (see Creating SLPRs).

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2. On the License Key Partition Deﬁnition pane, allocate licenses for software products to the

SLPR (see the HP StorageWorks Command View XP Advanced Edition Device Manager Server installation and conﬁguration guide or the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200).

NOTE:

If software product licenses have not been allocated to an SLPR, the user assigned to the SLPR cannot use the software products. For XP Auto LUN, if the licensed capacity for the entire storage is sufﬁcient, the Administrator can use XP Auto LUN to monitor the entire storage, even if XP Auto LUN's license has not been allocated to the SLPR.

3. For instructions on adding users, see the HP StorageWorks Command View XP Advanced Edition

Device Manager Server installation and conﬁguration guide or the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

4. To delete an SLPR, delete all users and set the license capacity to 0 GB, or click Disable for all

software products assigned to the SLPR on the License Key Partition Deﬁnition pane. See Deleting

SLPRs.

NOTE:

You cannot migrate mainframe volumes out of SLPR0. All mainframe volume operations can be performed by storage administrators, not storage partition administrators.

NOTE:

You can as error occurs when that user attempts to launch Command View AE or XP Remote Web Console.

sign a user to an SLPR that has not yet been created. However, if the SLPR does not exist, an

Creating SLPRs

If you have not yet created an SLPR in the array, all of the array's resources (that is, CLPRs and ports) belong in SLPR0. To divide the array's resources, create a new SLPR in the array.

IMPORTANT:

Disk/cache partitioning for the SVS200 is limited to one SLPR and four CLPRs.

NOTE:

Only Administrators can create SLPRs.

1. Conﬁrm the current CU group in the drop-down list for CU groups in the upper right of the XP

Remote Web Console main pane.

NOTE:

To change the CU group, select the desired CU group from the drop-down list for CU groups in the upper right of the XP Remote Web Console main pane. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

2. Right-click Subsystem,and select Create SLPR.

Working with SLPRs

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NOTE:

To create multiple SLPRs, repeat step 2.

3. Select an SLPR from thetree(see Figure 5).

NOTE:

If an SLPR hasthisicon( CU group, return to step 1.

) and is grayed out, you cannot select the SLPR. To change the

4. Change the SLP

5. Click Apply. A progress bar appears.

NOTE:

Even though you clicked Apply, the resources (CLPRs and ports) have not been allocated to an SLPR yet.

6. To allocate resources (CLPRs and ports) to an SLPR, perform one or both of the following:

a. Create aCLPRinanSLPR(see Creating CLPRs). b. Migrate a port from another SLPR (see Migrating an SLPR's resources).

NOTE:

To change an existing SLPR's settings, repeat step 3 through step 6.

Deleting SLPRs

If you delete an SLPR, partitioned resources are automatically returned to SLPR0.

NOTE:

You cannot d

elete SLPR0.

R's settings as needed.

NOTE:

Only Administrators can delete SLPRs

1. Conﬁrm the current CU group in the drop-down list for CU groups in the upper right of the XP

Remote Web Console main pane.

NOTE:

2. Right-click the SLPR you want to delete in the tree, and select Delete SLPR.

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NOTE:

If an SLPR has this icon ( CU group, return to step 1.

3. Click Apply. The progress bar appears.

) and is grayed out, you cannot select the SLPR. To change the

Migrating an SLPR's resources

You can migrate CLPRs and ports that are managed in an SLPR to another SLPR.

NOTE:

You cannot migrate CLPRs and ports to an SLPR belonging to a CU group other than the current SLPR.

NOTE:

You can migrate only Target ports to another SLPR. You cannot migrate Initiator, RCU Target, and External ports.

NOTE:

A NAS port belonging to the same channel adapter must belong to the same SLPR. For more information, see the HP StorageWorks LUN Conﬁguration and Security Manager XP user guide for the XP12000/XP10000/SVS200.

1. Conﬁrm the cu

Remote Web Console pane.

NOTE:

To change the CU group, select the desired CU group from the drop-down list for CU groups in the upper right of the XP Remote Web Console main pane. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.

2. Select an SLPR from thetree. TheSLPRresourcelist appears.

3. Right-click the CLPR or port you want to migrate, and select Cut.

NOTE:

You can select multiple CLPRs or ports.

NOTE:

To migrate NAS ports, select all ports in the same CHN (channel adapter for the NAS) and the CLPRs containing LUN0000 and LUN0001 that belong to the NAS-Sys host group, and migrate them at the same time.

4. Right-click the SLPR you want to migrate the CLPR or port to, and select Paste CLPRs, Ports.If you

migrated CLPRs, they are added to the tree and SLPR resource list. If you migrated ports, they are added only to the SLPR resource list.

rrent CU group in the drop-down list for CU groups in the upper right of the XP

Working with SLPRs

Page 31

NOTE:

You must select an SLPR that has this icon (

NOTE:

The LUN0000 and LUN0001 belonging to the NAS-Sys host group must belong to the same SLPR as the NAS port. LUNs from LUN0005 to LUN000A in the NAS system LU must belong to SLPR0.

5. Click Apply to apply settings. The progress bar appears.

Displaying error messages

If settings contain a discrepancy, an error message appears when you click Apply.Even if you click OK or Cancel to close the message after seeing the error message, you can refer to the latest error message.

1. Right-click the SLPR in the tree, and select Error Detail.

2. Click OK to close the message.

) and black characters for the destination SLPR.

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Working with SLPRs

Page 33

5 Troubleshooting

Table 6 provides general troubleshooting instructions for XP Disk/Cache Partition operations.

Table 6 General troubleshooting for XP Disk/Cache Partition

Error

All XP Disk/Cache Partition functions cannot be performed.

Port

The speciﬁed port cannot be migrated to another SLPR.

Parity group

The parity group administered in a CLPR cannot migrate to a CLPR in another SLPR.

NAS system LU

The parity group administrated in a CLPR cannot migrate to a CLPR in another SLPR.

The parity group administrated in a CLPR migrated to the CLPR in another SLPR.

ACLPRinanSLPRmigratedto another SLPR or a CLPR was deleted.

Aportthatisadministrated in an SLPR migrated to another SLPR.

Corrective Action

If you logged on to Command View XP or XP Remote Web Console as the storage partition administrator to use XP Disk/Cache Partition, you cannot perform any functions. To use XP Disk/Cache Partition:

1. Log on as the storage administrator.

2. Contact the storage administrator and have

that person perform XP Disk/Cache Partition functions.

You can migrate only Target ports to another SLPR. You cannot migrate Initiator, RCU Target, and External ports. Select a Target port.

Only parity groups for open-system user volumes among parity groups administered in a CLPR can migrate outside of SLPR0. You cannot migrate parity groups for mainframe volumes. Select parity groups that are not for mainframe volumes.

Parity groups that contain the NAS system LU (LUN0005, LUN0006, LUN0008, LUN0009, and LUN000A) cannot migrate outside of SLPR0. NAS system LU (LUN0000 and LUN0001) must belong to the same SLPR as the NAS channel adapter.

Check the NAS system LU's settings, and correct the settings if necessary. For more information about changing NAS system LU settings, contact your HP account support representative.

• The LU in the parity group administrated in a CLPR

is set across multiple SLPRs.

• The NAS system LU (LUN0000 and LUN0001)

does not belong to the same SLPR as the NAS channel adapter.

Check the settings, and migrate ports associated to the LU to the SLPR to which the parity group migrated, if necessary.

• The LU in the parity group administrated in a CLPR

is set across multiple SLPRs.

• The NAS system LU (LUN0000 and LUN0001)

does not belong to the same SLPR as the NAS channel adapter.

Check the settings, and migrate ports associated to the LU to the SLPR to which the parity group migrated, if necessary.

The LU associated to the port administrated in an SLPR is set across multiple SLPRs.

Check the settings, and migrate the parity group deﬁned to the LU to the CLPR deﬁned to the SLPR to which the LU migrated, if necessary.

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Error

Corrective Action

LUSE volume

A parity group that is administrated in a CLPR migrated to another CLPR.

AportinHighS

TheportinanS

Name of SLPR

The SLPR name cannot be changed.

Name of CLPR

TheCLPRnamecannotbechanged.

Parity Group

The parity group in a CLPR cannot migrate to another CLPR.

NAS port

TheNAS portsinanSLPR migratedto another SLPR.

SSID

You cannot migrate SSIDs.

peed mode

LPR migrated to another SLPR.

The LUSE volume associated to the parity group administrated in a CLPR is set across multiple CLPRs.

Check the settings, migrate the entire LUSE volume to the CLPR to which the parity group migrated, if necessary.

You are trying High Speed mod settings, an belong to the

You cannot assign the same name to multiple SLPRs. The SLPR name you entered is already used. Enter

another name. You cannot assign the same name to multiple CLPRs.

TheCLPRnameyou enteredis already used or reserved by a system. Enter another name.

If you cann another CL

• The speciﬁ

another p construc belong to thesameCLPR. Specifyall parity groups that construct the concatenated parity groups.

• If you do not click Apply when creating a new

CLPR, the parity group cannot be allocated. Click Apply, and migrate the parity group.

NAS ports in the same channel adapter must belong to the same SLPR. Migrate all NAS ports in the same channel adapter.

You cannot migrate the SSID associated to a CU group that does not belong to the current CU group. In this case, migrate the SSID:

1. Use the drop-down list for CU groups in the

upper right of the XP Remote Web Console main pane to change the CU group to the CU group the desired SSID is associated to.

2. Delete the SSID you want to migrate.

3. Use the drop-down list for CU groups in the

upper right of the XP Remote Web Console main pane to switch the CU group to the CU group the destination SLPR belongs to.

4. Add the SSID.

to allocate ports in a port block in

e to multiple SLPRs. Check the ports'

d ensure that all ports in the port block

same SLPR.

ot migrate the parity group in a CLPR to

PR.

ed parity group is concatenated to

arity group. The parity groups that

t the concatenated parity groups must

Troubleshooting

Page 35

6 Notes, restrictions, and requirements

This chapter provides additional information about using SLPRs and CLPRs.

CLPRs

• When creating

Partition De Web Console and Java® API. Both are required to enable the Web GUI for new partitions.

• Adding or changing a CLPR deﬁnition can take several hours. To minimize the amount of time

required when moving cache from one CLPR to another, create partitions when the array's workload is

• HP does not recommended the following operations with CLPRs:

• Creating a LUSE volume extending over multiple CLPRs. If performed, you cannot use volumes

belonging for z/OS® p

• XP Business Copy Quick Restore operations affecting multiple CLPRs.

• XP Auto LUN manual migrations affecting multiple CLPRs.

• If you per

operations, and allocate volumes that extend over multiple CLPRs to the same consistency group, you cannot create a pair.

• If you pe

operations, you can allocate only XP Continuous Access Asynchronous or TrueCopy for z/OS Asynchronous pairs belonging to the same CLPR to one consistency group. Parity groups allocated to the CLPR that these XP Continuous Access Asynchronous or TrueCopy for z/OS Asynchronous pairs b

• The following CU groups are for mainframe volumes: CU40-7F, CU80-BF, and CUC0-FE.

Therefore, you cannot use these CU groups for some program products. For more information about whether or not you can use all CU groups, see the user guide for each program product.

elong to cannot migrate to another CLPR.

a partition, the partition's license keys are disabled by default. Use the License Key

ﬁnition pane to enable license keys for the new partition. Basic license keys include XP

light.

to the CLPRs to which the LUSE is set as a XP Continuous Access or TrueCopy

air volume.

form XP Continuous Access Asynchronous or TrueCopy for z/OS Asynchronous

rform XP Continuous Access Asynchronous or TrueCopy for z/OS Asynchronous

SLPRs

• Portsbeing assigned to an SLPR should nothaveexistinghostgroupsand LUNs assigned to them.

Assign LUNs and deﬁne host groups after the partition is created.

• Assign LUNs for an SLPR from array groups that are assigned to control units (CUs) that have

been assigned to that SLPR. The StorageAdmin for a partition can only allocate from array groups belonging to the StorageAdmin's assigned partition.

• HP does not recommend making settings on multiple SLPRs in a single operations because it

results in more complex and difﬁcult SLPR administration.

• If an administrator forces the following functions for multiple SLPRs and contradictions occur as a

result, the StorageAdmin user‘s ability to use the SLPR is affected:

• XP Auto LUN manual migration

• XP Business Copy Quick Restore

• LU path settings

• High Speed mode settings

•Creating a LUSE volume

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• Mainframe volumes must be allocated to SLPR0.

• Before a customized volume (CV) is created, the StorageAdmins user must allocate CU numbers to

the SLPR. Allocated CU numbers are required only for deﬁning the CU number to be allocated to the LDEV when the StorageAdmin user creates a CV.

Notes, restrictions, and requirements

Page 37

Index

accessing XP Disk/Cache Partition,17 administering SLPRs,27 administrator rights,14 arrays, virtual,13 audience, documentation, 7

cache logical partitions. See CLPRs,11 CLPRs

about,11 creating,21 deleting,22 example of,12 migrating parity groups,23 restrictions on,35, 35 settings,19

conventions

document, 8 text symbols, 8

customer support, 8

deleting

CLPRs,22

SLPRs,29 displaying error messages,31 document

conventions, 8

feedback, 9

prerequisites, 7

HP 200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Intended audience

Prerequisites

Related documentation

Document conventions and symbols

HP technical support

Subscription service

HP websites

Documentation feedback

1OverviewofXPDisk/Cache Partition

XP Disk/Cache Partition features

Cache logical partitions (CLPRs)

2 Accessing XP Disk/Cache Partition

Creating CLPRs

Deleting CLPRs

Administering SLPRs

Creating SLPRs

Deleting SLPRs

Migrating an SLPR's resources

Displaying error messages

5 Troubleshooting

6 Notes, restrictions, and requirements

CLPRs

SLPRs