Hp StorageWorks XP Remote Web Console Software Uživatelský manuál

HP StorageWorks XP24000SnapshotUser'sGuide Part number: T5213-96003 First edition: June 2007

Data A has completed, Data B will be written to the part where Data A was stored in the P-VOL, and the P-VOL will be updated. From the S-VOL, you can

2AboutXPSnapshotOperations When XP Snapshot is used, it creates pairs consisting of a P-VOL and an S-VOL. When creating a pair, XP Snapshot uses a V-V

RAID Manager Part of XP Snapshot operations require RAID Manager. When you use RAID Manager, you do not need to use the Remote Web Console computer.

Warning: The capacity of a pool is equal to the total capacity of the pool-VOLs registered in the pool. The status of the XP Snapshot pair will be PSU

Use Business Copy’s Pair Operation window to see the status of the volume. Using RAID Manager, you can check the volume status by the pairdisplay comm

• The required time for deleting snapshot data or XP Snapshot pairs is several seconds, and sometimes morethanten minutes. Thetimewillincrease ifthe

If you specify a volume which is already paired with one or more S-VOLs as the P-VOL to create another pair, the pair status will not change to COPY,

also occur on the ports that are not connected to the S-VOL that rejected the host access. You need to terminate the application software which monito

• HP StorageWorks XP for FlashCopy Mirroring Software Version 1 • HP StorageWorks XP for FlashCopy Mirroring Software Version 2 • HP StorageWorks A

Data Retention Utility Data Retention Utility can set four different kinds of access attributes on the volumes: Read/Write, Read Only, Protect, and S-

Legal and notice information © Copyright 2007 Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required

OK: Operation is allowed. No: Operation is not allowed (command rejected). N/A: Not applicable. Table 6 XP Snapshot Operations When XP Snapshot P-VOL

Table 8 Business Copy Operations When XP Snapshot P-VOL and Business Copy S-VOL Are Shared Business Copy Operations XP Snapshot Pair Status COPY PAIR

Table 10 XP Snapshot Operations When XP Snapshot P-VOL and Continuous Access / Continuous Access Journal S-VOL Are Shared XP Snapshot Operations Conti

Table 12 Continuous Access / Continuous Access Journal Operations When XP Snapshot P-VOL and Continuous Access / Continuous Access Journal S-VOL Are S

24 About XP Snapshot Operations

3 Preparing for XP Snapshot Operations This chapter describes the requirements for using XP Snapshot, the installation procedure for XP Snapshot, and

Table 14 Requirements of the S-VOL of XP Snapshot Item Requirement Volume type V-VOL You cannot specify the following volumes as XP Snapshot S-VOLs. •

As for the RAID level, XP Snapshot supports RAID1, RAID5, and RAID6. XP Snapshot Software Requirements To use XP Snapshot, all storage system hardware

Calculating the Number of XP Snapshot Pairs by Using the Number of Differential Tables If additional shared memory is installed, the maximum number of

Table 16 Additional Shared Memory for the V-VOL Management Area Shared Memory Shared Memory Capacity XP Snapshot 1 751,619,276 bytes XP Snapshot 2

Contents AboutthisGuide ... 7 IntendedAudience... 7 RelatedDocumentation...

Note that you must round up the value enclosed by the two upward arrows (↑) to the nearest whole number. To calculate P (total capacity of all pools),

According to the result above, the maximum number of XP Snapshot pairs that can be created is 1,018 , 575 . Performance Considerations If XP Snapshot

NotesonUsing External VolumesasPool-VOLs By using External Storage, you can connect multiple storage systems to a storage system. In that case, the or

Installing and Uninstalling XP Snapshot This section describes the procedure for installing and uninstalling XP Snapshot. Installing XP Snapshot Thein

For details about the displayed windows, see “Using the XP Snapshot GUI”onpage35. 34 Preparing for XP Snapshot Operations

4 Using the XP Snapshot GUI XP Snapshot uses the windows displayed by clicking the Remote Web Console’s starting menu of Business Copy and LUN Expansi

Displays the ports that are defined paths or host groups, in tree style. When you select the items in the tree, information about Business Copy pairs o

Figure 5 Volume List Thevolumelistdisplaysthe following items. • Previous button When the total number of the volumes in the storage system is more t

Note: An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00:01#). An LDEV number that ends with the let

Table18Pop-upMenusoftheVolumeListofBusinessCopy’sPairOperation Window(InCaseanXPSnapshotPairIsSelected) Command Function Detail Opens the Detail dial

CalculatingtheNumberofXPSnapshotPairsbyUsingtheNumberofPairTables... 30 PerformanceConsiderations... 31 Notes on Defini

•CCC: LU number • XX:YY:ZZ: LDKC number:CU number:LDEV number Note: An LDEV number that ends with a # indicates that the LDEV is an external volume (

Figure 7 History Window The upper area of the History window lists the operation history of Business Copy pairs, and the lower area of the window list

Table 20 XP Snapshot History Reference Codes and Messages Code Message Description 0x2001 PAIR An XP Snapshot pair was created. 0x2011 PSUS An XP Sna

Pools in the storage system are displayed in the tree. The following icons are displayed. • :storage system. • Pool:X : pool in normal status (X indic

Note: If there is no error, --- will be displayed. • Preview X(Y): total number of the operations displayed in the Preview list (X) and the type of o

Figure 9 Pool Window The Pool window displays the following items. • Pool Mng. Capacity The name of the program product that uses pool management ca

Table 22 Pop-up Menus of the Pool Tree Menu Function When you right-click the XP Snapshot icon: New Pool Opens the New Pool dialog box (Figure 13 on

If you select a CU number from the drop-down list, the volumes in the CU will be displayed in the Free LDEVs list. Note that if you select an LDKC fr

Completes the SIMs related to pools. If you select the check box and click Apply, the SIMs that occur when the usage rate of a pool exceeds the thres

• : The storage system or a program product • :V-VOL group • : V-VOL group (in the process of being deleted) • :VDEV • Pop-up menu When you sele

1..2..3..4..5..6 ..7..8..9..10..11..12..13..14..15..16..17..18..19..20..21..22..Figures TheMechanismofXPSnapshot ... 9 TheMecha

50 Using the XP Snapshot GUI

5PerformingXPSnapshot Operations This chapter describes the XP Snapshot operations and dialog boxes. Note: When you want to check the result or progre

• Before creating a pool, it is required that the virtual volume management area is created in the shared memory. The virtual volume management area

• The filter settings are only effective within the current operations in Business Copy’s Pair Operation window. If you start another program product

1. Select and right-click the setting which you want to delete. Apop-upmenuwillbedisplayed. 2. Select the Delete command from the pop-up menu. Only

• The capacity of the pool management blocks in use will increase if you add the pool-VOLs. You need to be careful to keep the capacity of the pool m

2. Select andright-click thepool whosesetting youwantto changeinthe Pool tree of the Pool window. Apop-upmenuisdisplayed.Note: If the pool usage rat

Aconfirmation message is displayed asking if it is OK to apply the setting to the storage system. 6. Click OK. The confirmation message closes and the

Initializing the Pool Management Block If you initialize the pool management block, I/O performance of the pool will improve compared to before initia

• The V-VOLs you are creating will be used when you specify the S-VOLs of the XP Snapshot pairs. Since the capacity of the P-VOL and the S-VOL of the

...Tables 1 DocumentConventions ... 7 9 XP Snapshot Operations When XP Snaps

Figure 15 New V-VOL Group Dialog Box The New V-VOL Group dialog box displays the following items. • V-VOL Group drop-down list You can select or ente

Figure 16 Create V-VOL Wizard Dialog Box (1) The Create V-VOL wizard dialog box (1) displays the following items. • V-VOL Group V-VOL group ID that y

• Emulation: emulation type of the V-VOL • Capacity: capacity of the V-VOL • Back button Returns to the New V-VOL Group dialog box while maintain

• Even when you use the multiple CUs, LDEV numbers will be assigned according to the setting in the Interval drop-down list. • Select LDEV No. area

Information about the V-VOL(s) whose V-VOL number you selected from the V-VOL Group drop-down list is displayed. • VDEV:V-VOL groupnumberand VDEV num

You can store one snapshot data at a time by using the pairsplit command, but you cannot specify the snapshot data ID. For details about the pairsplit

The list of the pairs or volumes is displayed in the volume list. 4. Select and right-click the XP Snapshot pairs you want to delete. Apop-upmenuisdi

• BB: The group number of host group • CCC: LU number • XX:YY:ZZ: LDKC number:CU number:LDEV number Note: An LDEV number that ends with a # indicat

Note:If you select the Detail command in the pop-up menu when you are selecting a Business Copy pair, the displayed Detail dialog box will be differen

• Refresh button Updates the information in the Detail dialog box. • Close button Closes the Detail dialog box. Viewing S-VOL Path Information To di

About this Guide This user's guide describes and provides instructions for performing XP Snapshot operations on the HP storage system using the X

For information about XP Thin Provisioning, see the HP StorageWorks XP24000 Thin Provisioning Software User’s Guide. • The S-VOL Path Information box

• Used volume (TB) License information for Business Copy will be indicated in the format X(Y). X indicates license capacity used by Business Copy, an

72 Performing XP Snapshot Operations

6 Troubleshooting If you have a problem with the Remote Web Console, see the HP StorageWorks XP24000 Remote Web Console User’s Guide for troubleshooti

Problems Causes and Solutions Pool usage rate exceeds the threshold. Causes: • Too much snapshot data is stored in the pool. • Capacity of the pool

Problems Causes and Solutions An error occurred while restoring the pair. Causes: • A volume is blocked because a failure occurred in the hard disk

Apop-upmenuisdisplayed. 3. Select the Restore Pool command from the pop-up menu. Aconfirmation message is displayed asking if it is OK to restore the

Note: If you complete a SIM, the status of the SIM changes to completed. After the problem that caused theSIM is solved,complete theSIM andchangeits s

78 Troubleshooting

A Acronyms and Abbreviations Table 25 Acronyms and Abbreviations CCI RAID Manager DKA disk adapter DKC disk controller DKCMAIN Disk Controller Main G-

• 1KB(kilobyte)=1,024bytes • 1MB(megabyte)= 1,0242 bytes • 1GB (gigabyte) = 1,0243 bytes • 1 TB (terabyte) = 1,0244 bytes • 1 block = 512 bytes W

80 Acronyms and Abbreviations

Index A access attribute,19 audience, 7 Auto LUN,19 B Business Copy,19 C Change Pool Information dialog box,56 command device,27 component,11 Continuo

V X V-VOL window,48 XP Snapshot window,42 volume list,36 XP Thin Provisioning,23 W websites HP,8 HP Subscriber's Choice for Business,8 product

1 Overview of HP StorageWorks XP Snapshot The HP storage system provides various copy solutions (program products) such as HP StorageWorks XP Continuo