
Contents
AboutthisGuide .......................... 7
IntendedAudience...................................... 7
RelatedDocumentation.................................... 7
DocumentConventions.................................... 7
ConventionsforStorageCapacityValues ............................ 7
WindowIllustrations..................................... 8
HPTechnicalSupport..................................... 8
SubscriptionService ..................................... 8
HPWebsites ........................................ 8
Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1OverviewofHPStorageWorksXPSnapshot.............. 9
OverviewofXPSnapshot................................... 9
2AboutXPSnapshotOperations ................... 11
XPSnapshotComponent ................................... 11
VolumesandVolumePairs ................................ 11
XPSnapshotSoftware .................................. 11
License......................................... 11
RAIDManager .................................... 12
XPSnapshotOperations .................................. 12
CreateV-VOLManagementAreaOperation........................ 12
CreationofaPool................................... 12
CreationofaVirtualVolume .............................. 13
CreationofanXPSnapshotPair............................. 13
StoringofSnapshotData................................ 14
RestorationofanXPSnapshotPair............................ 14
DeletionofSnapshotDataoranXPSnapshotPair ..................... 14
StatusoftheXPSnapshotPairs................................ 15
CopyThresholdOption................................... 17
InteroperabilitywithOtherProductsandFunctions ....................... 18
DataRetentionUtility.................................. 19
AutoLUN....................................... 19
BusinessCopy..................................... 19
ContinuousAccessorContinuousAccessJournal...................... 21
HPStorageWorksXPThinProvisioningSoftware ...................... 23
3PreparingforXPSnapshotOperations ............... 25
SystemRequirements.................................... 25
VolumeRequirements.................................. 25
XPSnapshotSoftwareRequirements ........................... 27
LicenseRequirements.................................. 27
SharedMemoryRequirements.............................. 27
RequirementsforRAIDManager............................. 27
OperationalRequirements.................................. 27
CalculatingtheMaximumNumberofPairs ........................ 27
Calculating the Number of XP Snapshot Pairs by Using the Number of Differential Tables . . . 28
Calculating the Number of XP Snapshot Pairs by Using the Shared Memory Capacity for the
VirtualVolumeManagementArea .......................... 28
XP24000 Snapshot User's Guide
3
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