IBM XIV Storage System Copy Services and Migration

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If you chose to allow the XIV to determine the size of the migration volume, then you may findthat a small amount of extra space is consumed for every volume that was created. Unlessthe volume sizes being used on the non-XIV storage device were created in multiples of16 GiB, then it is likely that the volumes automatically created by the XIV will reserve moreXIV disk space than is actually made available to the volume. An example of the XIV volumeproperties of such an automatically created volume is shown in Figure 7-20. In this examplethe Windows2003_D drive is 53 GB in size, but the size on disk is 68 GB on the XIV.Figure 7-20 Properties of a migrated volumeWhat this means is that we can resize that volume to 68 GB (as shown in the XIV GUI) andmake the volume 15 GB larger without effectively consuming any more space on the XIV. InFigure 7-21 we can see that the migrated Windows2003_D drive is 53 GB in size(53,678,141,440 bytes).Figure 7-21 Windows D drive at 53 GB214 IBM XIV Storage System: Copy Services and Migration
To resize a volume go to the Volumes Volumes & Snapshots panel, right-click to selectthe volume, then choose the Resize option. Change the sizing method drop-down fromBlocks to GB and the volume size is automatically moved to the next multiple of 17 GB. Wecan also use XCLI commands, as shown in Example 7-8.Example 7-8 Resize the D drive using XCLI>> vol_resize vol=Windows2003_D size=68Warning: ARE_YOU_SURE_YOU_WANT_TO_ENLARGE_VOLUME Y/N: YCommand executed successfully.Because this example is for a Microsoft Windows 2003 basic NTFS disk, we can use thediskpart utility to extend the volume, as shown in Example 7-9.Example 7-9 Expanding a Windows volumeC:\>diskpartDISKPART> list volumeVolume ### Ltr Label Fs Type Size Status Info---------- --- ----------- ----- ---------- ------- --------- --------Volume 0 C NTFS Partition 34 GB Healthy SystemVolume 4 D Windows2003 NTFS Partition 64 GB HealthyDISKPART> select volume 4Volume 4 is the selected volume.DISKPART> extendDiskPart successfully extended the volumeWe can now confirm that the volume has indeed grown by displaying the volume properties.In Figure 7-22 we can see that the disk is now 68 GB (68,713,955,328 bytes).Figure 7-22 Windows 2003 D drive has grown to 64 GBIn terms of when to do the re-size, a volume cannot be resized while it is part of a datamigration. This means that the migration process must have completed and the migration forChapter 7. Data migration 215
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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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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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Page 186 and 187: ►►A disaster that makes the who
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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
Page 198 and 199: XCLI commands for DR testingFigure
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Page 204 and 205: An example of selecting which metho
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Page 208 and 209: Figure 7-3 depicts a fabric-attache
Page 210 and 211: 4. Enter another port (repeating st
Page 212 and 213: c. Name: Enter a cluster name in th
Page 214 and 215: Important: You cannot use the XIV d
Page 216 and 217: 7.3.4 Create and activate a data mi
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Page 220 and 221: ►►►►►►►►Define host
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Page 242 and 243: 7.12.3 HDS TagmaStore USPIn this se
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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Page 264 and 265: 8.3.3 Hardware dependenciesThere ar
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Page 268 and 269: 8.4.3 Creating XIV volumes that are
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Page 272 and 273: 2. Define the SVC nodes to the XIV
Page 274 and 275: 2. List the newly detected MDisks,
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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: CopyService
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IBM XIV Storage System Copy Services and Migration

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