DataKeeper for Windows All Documentation - SIOS

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Unplanned Switchover5. Log into the Hyper-V host server that just became the source server in the DataKeeper interface.6. Start Hyper-V Manager as described previously.7. Start the virtual machine.Unplanned SwitchoverAn unplanned switchover is necessary when a failure of some sort occurs and either the source system isunavailable or the connection between the systems is broken and requires that the virtual machine be broughtonline on the target server.Since, in this scenario, the source server is unavailable for some reason, quiescing the data on the sourceserver is not possible and as such, only the following steps are necessary on the target server to bring thevirtual machine online.1. On the target server, start the DataKeeper console as described previously.2. Select the mirror and click Switchover in the Actions pane.Wait until the mirror has completely come into service on the server and the DataKeeper user interface(UI) indicates the functional server is the source server.3. On the same server, start Hyper-V Manager as described previously.DataKeeper for Windows Technical DocumentationPage 152
SwitchbackStart the virtual machine.SwitchbackSwitchback is a planned event which transfers the virtual machine from the target server back to the sourceserver and, in process, is exactly the same as the planned switchover process. Please refer to the stepspreviously listed in the Planned Switchover section to affect a switchback.DataKeeper for Windows Technical DocumentationPage 153
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DataKeeper for Windowsv7.6Technical
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Specifying Network Cards for Mirror
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TargetPortIncr * 48TargetDispatchPo
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Continue and Lock 111Partial Resync
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Planned Switchover 150Unplanned Swi
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Index 176Table of Contentsxii
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User InterfaceUser InterfaceSteelEy
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DataKeeper Service Log On ID and Pa
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Understanding ReplicationEnvironmen
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SteelEye DataKeeper Resynchronizati
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Synchronous Mirroringvolume write,
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Asynchronous MirroringIn the diagra
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Mirror RESYNCINGMirror RESYNCINGWhe
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Volume Considerationsthe write requ
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Mirror State CountersMirror State C
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Queue High WaterQueue High WaterDef
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Resync PhaseRange: 0 - MAX_ULONGThi
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Chapter 3: ConfigurationRequirement
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Firewall ConfigurationsEnvironmentM
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Configuring Microsoft's Windows Fir
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High-Speed Storage Best PracticesHi
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Handling Unmanaged Shutdown IssuesH
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Verifying Data on the Target Volume
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Chapter 4: AdministrationThe topics
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Extensive Write ConsiderationsExten
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BandwidthThrottle †\{Target IP}Th
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TargetPortBase *Specifies the maxim
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WriteQueueHighWater * †WriteQueue
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Registry Entries that SHOULD NOT be
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ErrorControl\CurrentControlSet\Serv
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BuildTimeBuildTimeLocation: HKEY_LO
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VolumeAttributesSnapshotDeviceREG_S
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SourceDriveLetterSpecifies the driv
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BreakUserRequestedBreakUserRequeste
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CHANGEMIRRORENDPOINTSThis is the so
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2x1 Mirror CHANGEMIRRORENDPOINTS Co
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CLEARASR_OKSYS1.MYDOM.LOCAL;J;172.1
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CREATEMIRRORCREATEMIRROREMCMD CREA
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GETASR_OKThis command will notify D
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GETJOBINFOThis command returns exte
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GETREMOTEBITMAP4: Mirror is paused5
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GETSNAPSHOTLOCATIONDriver Version =
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GETVOLUMEINFO1: Mirroring2: Mirror
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LOCKVOLUMERAW filesystemFAT filesys
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RESTARTVOLUMEPIPEWriteQueueLowWater
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STOPSERVICEThis command sets the sn
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UPDATEVOLUMEINFOUPDATEVOLUMEINFOEMC
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One-to-OneExample:USECASEReplicate
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One-to-Many (Multiple Targets)One-t
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N-Shared-Disk Replicated to OneAddi
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N-Shared-Disk Replicated to Multipl
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Disconnecting from a ServerDisconne
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Creating Mirrors With Shared Volume
Page 116 and 117: Safe Creation of a Shared-Storage V
Page 118 and 119: Switchover and Failover with Multip
Page 120 and 121: Source Server Failure - Manual Swit
Page 122 and 123: Renaming a JobRenaming a Job1. Sele
Page 124 and 125: Requirements for SwitchoverNote: If
Page 126 and 127: Breakusually much quicker than a fu
Page 128 and 129: Shared Volume Procedure - Basic Dis
Page 130 and 131: Mirror PropertiesThis dialog displa
Page 132 and 133: Working With Shared VolumesWorking
Page 134 and 135: Using Microsoft iSCSI Target With D
Page 136 and 137: Installation of the iSCSI Target2.
Page 138 and 139: Creation of Mirror and Configuratio
Page 140 and 141: Creation of iSCSI Virtual Disks8. S
Page 142 and 143: Setting Up Multiple Virtual Disks W
Page 144 and 145: DataKeeper Target Snapshot5. Right-
Page 146 and 147: Local WriteIf the block has not bee
Page 148 and 149: Snapshot Location SizeIMPORTANT: Th
Page 150 and 151: Snapshot Location SelectionWhen cli
Page 152 and 153: Source Out of ServiceSource Out of
Page 154 and 155: TargetSnapshotBlocksize Registry Va
Page 156 and 157: Create and Configure a Hyper-V Virt
Page 158 and 159: Create and Configure a Hyper-V Virt
Page 160 and 161: Install an Operating System and Any
Page 162 and 163: Configure the Target Server to Run
Page 164 and 165: Planned/Unplanned SwitchoverPlanned
Page 168 and 169: Chapter 6: Frequently Asked Questio
Page 170 and 171: Inability to Create a Mirror• Sou
Page 172 and 173: Split-Brain FAQsAnswerYes, beginnin
Page 174 and 175: Using Volume Shadow CopyReplication
Page 176 and 177: Chapter 7: TroubleshootingThe topic
Page 178 and 179: Counter Logs Do Not Work on Windows
Page 180 and 181: System Event Log - Create Mirror Fa
Page 182 and 183: Windows Server 2012 MMC Snap-in Cra
Page 184 and 185: Creating Mirrors with Shared Volume
Page 186 and 187: Windows Server 2012 NIC Teaming Iss
Page 188 and 189: CHKDSKThis command, which is used t
Page 190 and 191: IndexIndexAAsynchronous 11Change Mi
Page 192 and 193: IndexFilename 154Firewall 32Full Re
Page 194 and 195: IndexPerformance Monitor Counters 1
Page 196: IndexVolume 18Size 18Volume Shadow
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