IBM XIV Storage System Copy Services and Migration

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Important: You cannot use the XIV data migration function to migrate data to a sourcevolume in an XIV remote mirror pair. If you need to do this, migrate the data first andthen create the remote mirror after the migration is completed.If you want to manually create the volumes on the XIV, consult 7.5, “Manually creating themigration volume” on page 207. Preferably, instead continue with the next step, discussedin the following sectionXIV volume automatically createdThe XIV has the ability to determine the size of the non-XIV volume and create the XIVquickly when the data migration object is defined. This method is easy, which helps avoidpotential issues when manually calculating the real block size of a volume.1. In the XIV GUI go to the floating menu Remote Migration.2. Right-click and choose Define Data Migration. This brings up a panel like that shown inFigure 7-9.– Destination Pool: Choose the pool from the drop-down menu where the volume will becreated.– Destination Name: Enter a user-defined name. This will be the name of the local XIVvolume.– Source Target System: Choose the already defined non-XIV storage device from thedrop-down menu.Important: If the non-XIV device is active/passive, then the source target systemmust represent the controller (or service processor) on the non-XIV device thatcurrently owns the source LUN being migrated. This means that you must check,from the non-XIV storage, which controller is presenting the LUN to the XIV.Figure 7-9 Define Data Migration object/volume– Source LUN: Enter the decimal value of the host LUN ID as presented to the XIV fromthe non-XIV storage system. Certain storage devices present the LUN ID as hex. Thenumber in this field must be the decimal equivalent. Ensure that you do not accidentallyuse internal identifiers that you may also see on the source storage systems198 IBM XIV Storage System: Copy Services and Migration
management panels. In Figure 7-8 on page 197, the correct values to use are in theLUN column (numbered 0 to 3).– Keep Source Updated: Check this if the non-XIV storage system source volume is tobe updated with writes from the host. In this manner all writes from the host will bewritten to the XIV volume, as well as the non-XIV source volume, until the datamigration object is deleted.Click Define and the migration appears as shown in Figure 7-10.Figure 7-10 Defined data migration object/volume3. Test the data migration object. Right-click to select the created data migration object andchoose Test Data Migration. If there are any issues with the data migration object the testfails, reporting the issue found. See Figure 7-11.Figure 7-11 Test Data MigrationTip: If you are migrating volumes from an MSCS cluster that is still active, then testing amigration may fail due to the reservations placed on the source LUN by MSCS. You mustbring the cluster down to get the test to succeed.Chapter 7. Data migration 199
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Front coverIBM XIV Storage System:C
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Note: Before using this information
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7.9.4 Host server cannot access the
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viiiIBM XIV Storage System: Copy Se
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TrademarksIBM, the IBM logo, and ib
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Recovery Program at the Pentagon fo
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Comments welcomeYour comments are i
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1.1 Snapshots architectureBefore we
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A logical volume is represented by
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If you know in advance that an auto
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An application can utilize many vol
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Note: The creation date of the dupl
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Along with these properties, the tr
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The GUI also lets you specify the d
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pointers to the original data are l
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For the second scenario, the origin
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Figure 1-28 no longer displays the
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To examine the details of the scena
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Restriction: Volumes in a consisten
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When created, the consistency group
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The new snapshots are created and d
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To obtain details about a consisten
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Example 1-12 illustrates the snap_g
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1.5 MySQL database backup exampleMy
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Before running the backup script, a
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# XCLI command to perform the backu
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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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Page 178 and 179: Change RPO and intervalThe required
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Page 188 and 189: 6.5.2 Mirroring ongoing operationFo
Page 190 and 191: The sync job runs and the mirror st
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Page 194 and 195: GUI steps to duplicate a snapshot g
Page 196 and 197: Figure 6-42 New master volumesAfter
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Page 244 and 245: In Example 7-10 the XCLI commands s
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Page 260 and 261: 8.1 Steps to take when using SVC mi
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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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IBM XIV Storage System Copy Services and Migration

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