IBM XIV Storage System Copy Services and Migration

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7.9.4 Host server cannot access the XIV migration volume. . . . . . . . . . . . . . . . . . . . . 2187.9.5 Remote volume cannot be read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2187.9.6 LUN is out of range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2197.10 Backing out of a data migration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2197.10.1 Back-out prior to migration being defined on the XIV . . . . . . . . . . . . . . . . . . . . 2197.10.2 Back-out after a data migration has been defined but not activated. . . . . . . . . 2197.10.3 Back-out after a data migration has been activated but is not complete. . . . . . 2197.10.4 Back-out after a data migration has reached the synchronised state . . . . . . . . 2207.11 Migration checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2207.12 Device-specific considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2237.12.1 EMC CLARiiON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2247.12.2 EMC Symmetrix and DMX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2247.12.3 HDS TagmaStore USP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2267.12.4 HP EVA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2267.12.5 IBM DS3000/DS4000/DS5000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2277.12.6 IBM ESS E20/F20/800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2297.12.7 IBM DS6000 and DS8000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2307.13 Sample migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231Chapter 8. SVC migration with XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2438.1 Steps to take when using SVC migration with XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . 2448.2 XIV and SVC interoperability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2448.2.1 Firmware versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2448.2.2 Copy functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2458.2.3 TPC with XIV and SVC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2458.3 Zoning setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2458.3.1 Capacity on demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2468.3.2 Determining XIV WWPNs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2478.3.3 Hardware dependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2488.3.4 Sharing an XIV with another SVC cluster or non-SVC hosts . . . . . . . . . . . . . . . 2488.3.5 Zoning rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2488.4 Volume size considerations for XIV with SVC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2488.4.1 SCSI queue depth considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2498.4.2 XIV volume sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2508.4.3 Creating XIV volumes that are exactly the same size as SVC VDisks . . . . . . . . 2528.4.4 SVC 2TB volume limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2528.4.5 MDisk group creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2528.4.6 SVC MDisk group extent sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2528.5 Using an XIV for SVC quorum disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2538.6 Configuring an XIV for attachment to SVC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2558.6.1 XIV setup steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2558.6.2 SVC setup steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2578.7 Data movement strategy overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2598.7.1 Using SVC migration to move data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2598.7.2 Using VDisk mirroring to move the data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2608.7.3 Using SVC migration with image mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2608.8 Using SVC migration to move data to XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2618.8.1 Determine the required extent size and VDisk candidates . . . . . . . . . . . . . . . . . 2618.8.2 Create the MDisk group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2628.8.3 Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2628.9 Using VDisk mirroring to move the data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2638.9.1 Determine the required extent size and VDisk candidates . . . . . . . . . . . . . . . . . 2638.9.2 Create the MDisk group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264viIBM XIV Storage System: Copy Services and Migration
8.9.3 Set up the IO group for mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2648.9.4 Create the mirror. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2658.9.5 Validating a VDisk copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2668.9.6 Removing the VDisk copy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2678.10 Using SVC migration with image mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2678.10.1 Create image mode destination volumes on the XIV . . . . . . . . . . . . . . . . . . . . 2678.10.2 Migrate the VDisk to image mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2698.10.3 Outage step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2708.10.4 Bring the VDisk online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2708.10.5 Migration from image mode to managed mode . . . . . . . . . . . . . . . . . . . . . . . . 2718.10.6 Remove image mode MDisks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2728.10.7 Use transitional space as managed space . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2728.10.8 Remove non-XIV MDisks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2728.11 Future configuration tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2738.11.1 Adding additional capacity to the XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2738.11.2 Using additional XIV host ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2738.12 Understanding the SVC controller path values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2748.13 SVC with XIV implementation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277IBM Redbooks publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277Other publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278How to get IBM Redbooks publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279Contentsvii
Page 1: Front coverIBM XIV Storage System:C
Page 4: Note: Before using this information
Page 10 and 11: viiiIBM XIV Storage System: Copy Se
Page 12 and 13: TrademarksIBM, the IBM logo, and ib
Page 14 and 15: Recovery Program at the Pentagon fo
Page 16 and 17: Comments welcomeYour comments are i
Page 18 and 19: 1.1 Snapshots architectureBefore we
Page 20 and 21: A logical volume is represented by
Page 22 and 23: If you know in advance that an auto
Page 24 and 25: An application can utilize many vol
Page 26 and 27: Note: The creation date of the dupl
Page 28 and 29: Along with these properties, the tr
Page 30 and 31: The GUI also lets you specify the d
Page 32 and 33: pointers to the original data are l
Page 34 and 35: For the second scenario, the origin
Page 36 and 37: Figure 1-28 no longer displays the
Page 38 and 39: To examine the details of the scena
Page 40 and 41: Restriction: Volumes in a consisten
Page 42 and 43: When created, the consistency group
Page 44 and 45: The new snapshots are created and d
Page 46 and 47: To obtain details about a consisten
Page 48 and 49: Example 1-12 illustrates the snap_g
Page 50 and 51: 1.5 MySQL database backup exampleMy
Page 52 and 53: Before running the backup script, a
Page 54 and 55: # XCLI command to perform the backu
Page 56 and 57: 40 IBM XIV Storage System: Copy Ser
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2.1 OverviewThis section includes a
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Figure 2-2 shows the Tivoli Storage
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►For exchange data, the Microsoft
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2.4.1 XIV VSS Provider installation
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Provide specific information regard
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The Windows server is now ready to
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3. The Requirements Check dialog wi
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5. The completion window shown in F
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To perform a VSS snapshot backup of
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CLUSTERnodePASSWORDAccessNOGenerate
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To see a list of the available VSS
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64 IBM XIV Storage System: Copy Ser
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3.1 Volume copy architectureThe vol
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Figure 3-2 provides an example of t
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After the copy is complete, power u
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4.1 XIV Remote Mirroring overviewTh
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►Host read operations are perform
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Figure 4-4 shows remote mirror conn
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4.2.2 Operational proceduresMirrori
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After mirroring has been implemente
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4.3 XIV Remote Mirroring usageRemot
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►Metro region plus out-of-region
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Figure 4-15 shows an XIV local snap
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►XIV target configuration: synchr
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►XIV target configuration: bi-dir
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Connections must be made between po
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In Figure 4-28, five of the seven e
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If multiple volumes will have depen
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there are certain additional constr
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In synchronous mirroring, during st
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4.4.11 Mirror reactivation and resy
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►►The volume mirroring settings
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4.4.16 Deleting mirror coupling def
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10.Unmap master peers at XIV 2 from
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6. Remove connectivity between the
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4.7 Advantages of XIV mirroringXIV
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As seen in Example 4-1, in the Role
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hover the mouse over a port, as sho
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Selecting Configure opens a configu
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Connections are easily defined by c
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4.11.3 XCLI examplesXCLI commands c
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124 IBM XIV Storage System: Copy Se
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5.1 Synchronous mirroring configura
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- Slave CG / VolumeThis is the name
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2. On the Secondary XIV go to the R
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Adding a mirrored volume to a mirro
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5.3 Role reversalWith synchronous m
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uncommitted data, and it is the res
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►►The local site recoveryThe ol
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Example 5-8 List mirror couplingsFi
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5.5.3 Phase 3: recovery of the prim
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Reactivating the remote mirror coup
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5.5.4 Phase 4: switching production
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5. Reassign volumes back to the pro
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6.1 Asynchronous mirroring configur
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The slave volume must be unlocked a
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Using XCLI for volume mirroring set
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consistency group requires the volu
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Go to the Mirroring panel and verif
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-- Activate Mirror CGmirror_activat
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Change RPO and intervalThe required
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Deactivation on the masterTo deacti
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6.2 Role reversalChanging roles can
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Slave peer consistencyWhen the user
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►►A disaster that makes the who
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6.5.2 Mirroring ongoing operationFo
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The sync job runs and the mirror st
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Mirror synchronization statusSynchr
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GUI steps to duplicate a snapshot g
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Figure 6-42 New master volumesAfter
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XCLI commands for DR testingFigure
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1514131211109876543210OKACID /Diag2
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An example of selecting which metho
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not presented to the XIV. Check you
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Figure 7-3 depicts a fabric-attache
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4. Enter another port (repeating st
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c. Name: Enter a cluster name in th
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Important: You cannot use the XIV d
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7.3.4 Create and activate a data mi
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Important: If this is an online mig
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►►►►►►►►Define host
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4. Click New for a new system varia
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- Source LUN: Enter the decimal val
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The rate parameters can only be set
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eing generated by the migration pro
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If you chose to allow the XIV to de
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that volume must have been deleted
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►The volume on the source non-XIV
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7.10.4 Back-out after a data migrat
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TasknumberCompleted?Where toperform
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Using Microsoft calculator to conve
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7.12.3 HDS TagmaStore USPIn this se
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In Example 7-10 the XCLI commands s
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1011 0003 10.0 5001738000230153 Nex
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Using XIV DM to migrate an AIX file
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zone: nextrazap_dolly_fcs110:00:00:
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We now allocate the ESS 800 LUNS to
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We can also use a script provided b
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We then get a warning message. The
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8.1 Steps to take when using SVC mi
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When a partially populated XIV has
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8.3.3 Hardware dependenciesThere ar
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This leads to the following recomme
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8.4.3 Creating XIV volumes that are
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If your SVC uses firmware Version 5
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2. Define the SVC nodes to the XIV
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2. List the newly detected MDisks,
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8.7.2 Using VDisk mirroring to move
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8.8.2 Create the MDisk groupWe must
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8.9.2 Create the MDisk groupWe must
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In Example 8-42 we display the prog
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When an SVC volume is created we no
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In Example 8-55, we monitor the mig
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The VDisk moves from being in image
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the additional Fibre Channel ports
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TasknumberCompleted?Where toperform
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► Fibre Channel SAN Configuration
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DR testingGUI steps 179DS4000 190,
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RRDAC 227-228reactivation 111Recove
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emote mirroring peers 110remote tar
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