IBM XIV Storage System Copy Services and Migration

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-- Activate Mirror CGmirror_activate cg="HS_Pool1_CG"-- add volume to CG with changing RPOmirror_change_schedule vol="HS1_3" schedule="xiv_gui_schedule_30_1258729268234"schedule_delete schedule="xiv_gui_schedule_300_1258145098468"mirror_change_schedule vol="HS1_3" schedule="xiv_gui_schedule_30_1258729268234"mirror_change_rpo vol="HS1_3" rpo=90 remote_rpo=90cg_add_vol cg="HS_Pool1_CG" vol="HS1_3"-- Primary Mirror Status>> mirror_list -tlocal_peer_name,sync_type,current_role,target_name,remote_peer_name,active,sync_state,schedule_name,last_replicated_snapshot_time,specified_rpoName Mirror Type Role Remote System Remote Peer Active StatusSchedule Name Last Replicated RPOHS1_1 async_interval Master WSC_1300331 HS1_1 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:41:30 0:01:30HS1_2 async_interval Master WSC_1300331 HS1_2 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:41:30 0:01:30HS1_3 async_interval Master WSC_1300331 HS1_3 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:41:30 0:01:30HS_Pool1_CG async_interval Master WSC_1300331 HS_Pool1_CG yes RPO OKxiv_gui_schedule_30 2009-11-11 16:41:30 0:01:30-- Secondary Mirror Status>> mirror_list -tlocal_peer_name,sync_type,current_role,target_name,remote_peer_name,active,sync_state,schedule_name,last_replicated_snapshot_time,specified_rpoName Mirror Type Role Remote System Remote Peer Active StatusSchedule Name Last Replicated RPOHS1_1 async_interval Slave WSC_6000639 HS1_1 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:42:05 0:01:30HS1_2 async_interval Slave WSC_6000639 HS1_2 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:42:05 0:01:30HS1_3 async_interval Slave WSC_6000639 HS1_3 yes RPO OKxiv_gui_schedule_30 2009-11-11 16:42:05 0:01:30HS_Pool1_CG async_interval Slave WSC_6000639 HS_Pool1_CG yes RPO OKxiv_gui_schedule_30 2009-11-11 16:42:05 0:01:30>> sync_job_listJob Object Local Peer Source Target State Part of CGJob TypeVolume HS1_1 last-replicated-HS1_1 most-recent-HS1_1 active yesscheduledVolume HS1_2 last-replicated-HS1_2 most-recent-HS1_2 active yesscheduledVolume HS1_3 last-replicated-HS1_3 most-recent-HS1_3 active yesscheduledCG HS_Pool1_CG last-replicated-HS1_1 most-recent-HS1_1 active noscheduled-- Remove from Mirrored Consistency Groupcg_remove_vol vol="HS1_3"160 IBM XIV Storage System: Copy Services and Migration
6.1.3 Coupling activation, deactivation, and deletionMirroring can be manually activated and deactivated per volume or CG pair. When it isactivated, the mirror is in active mode. When it is deactivated, the mirror is in inactive mode.These modes have the following functions:► ActiveMirroring is functioning and the data is being written to the master and copied to the slavepeers at regular intervals.► InactiveMirroring is deactivated. The data is not being replicated to the slave peer, but writes to themaster peer are being recorded and can later be replicated to the slave volume. Inactivemode is used mainly when maintenance is performed on the secondary XIV system.The mirror has the following characteristics:► When a mirror is created, it is always initially in inactive mode.► A mirror can only be deleted when its is in inactive mode.► Transitions between the two states can only be performed from the XIV with the master.► In a DR situation a role change changes the slave peers (at the secondary system) to amaster role (so that production can resume at the secondary). However, until the primarysite is recovered, the role of its volumes cannot be changed from master to slave. In thiscase, both sides have the same role. When the primary site is recovered and before thelink is resumed, you must first change the role from master to slave at the primary (seealso 6.3, “Resynchronization after link failure” on page 169, and 6.4, “Disaster recovery”on page 169).The mirroring is terminated by deactivating the mirror and is required for the following actions:► Terminating or deleting the mirroring► Stopping the mirroring process– For a planned network outage– To reduce network bandwidth– For a planned recovery testThe deactivation pauses a running sync job and no new sync jobs will be created as long asthe active state of the mirroring is not restored. However, the deactivation does not cancel thestatus check by the master and the slave. The synchronization status of the deactivatedmirror is calculated as though the mirror was active.Deactivating a mirror results in the synchronization status becoming RPO_Lagging when thespecified RPO time is exceeded. This means that the last-replicated snapshot is older thanthe specified RPO.Chapter 6. Asynchronous Remote Mirroring 161
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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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Page 128 and 129: 4.7 Advantages of XIV mirroringXIV
Page 130 and 131: As seen in Example 4-1, in the Role
Page 132 and 133: hover the mouse over a port, as sho
Page 134 and 135: Selecting Configure opens a configu
Page 136 and 137: Connections are easily defined by c
Page 138 and 139: 4.11.3 XCLI examplesXCLI commands c
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Page 142 and 143: 5.1 Synchronous mirroring configura
Page 144 and 145: - Slave CG / VolumeThis is the name
Page 146 and 147: 2. On the Secondary XIV go to the R
Page 148 and 149: Adding a mirrored volume to a mirro
Page 150 and 151: 5.3 Role reversalWith synchronous m
Page 152 and 153: uncommitted data, and it is the res
Page 154 and 155: ►►The local site recoveryThe ol
Page 156 and 157: Example 5-8 List mirror couplingsFi
Page 158 and 159: 5.5.3 Phase 3: recovery of the prim
Page 160 and 161: Reactivating the remote mirror coup
Page 162 and 163: 5.5.4 Phase 4: switching production
Page 164 and 165: 5. Reassign volumes back to the pro
Page 166 and 167: 6.1 Asynchronous mirroring configur
Page 168 and 169: The slave volume must be unlocked a
Page 170 and 171: Using XCLI for volume mirroring set
Page 172 and 173: consistency group requires the volu
Page 174 and 175: Go to the Mirroring panel and verif
Page 178 and 179: Change RPO and intervalThe required
Page 180 and 181: Deactivation on the masterTo deacti
Page 182 and 183: 6.2 Role reversalChanging roles can
Page 184 and 185: Slave peer consistencyWhen the user
Page 186 and 187: ►►A disaster that makes the who
Page 188 and 189: 6.5.2 Mirroring ongoing operationFo
Page 190 and 191: The sync job runs and the mirror st
Page 192 and 193: Mirror synchronization statusSynchr
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 202 and 203: 1514131211109876543210OKACID /Diag2
Page 204 and 205: An example of selecting which metho
Page 206 and 207: not presented to the XIV. Check you
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
Page 218 and 219: Important: If this is an online mig
Page 220 and 221: ►►►►►►►►Define host
Page 222 and 223: 4. Click New for a new system varia
Page 224 and 225: - 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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242 IBM XIV Storage System: Copy Se
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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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IBM XIV Storage System: CopyService
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IBM XIV Storage System Copy Services and Migration

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