HP StorageWorks XP Remote Web Console Software User Manual
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If an XP Continuous Access Synchronous pair and a TrueCopy for Mainframe synchronous pair
are registered in the same group, you can ensure the consistency between an XP Continuous Access
Synchronous pair and a TrueCopy for Mainframe synchronous pair in the same group. If only XP
Continuous Access Synchronous pairs or only TrueCopy for Mainframe synchronous pairs are
registered in the group, you can ensure the consistency of the pairs in each group. For further
informations on TrueCopy for Mainframe synchronous pairs, see the Hitachi TrueCopy™ for
Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array.
For details about creating pairs and specifying consistency groups for XP Continuous Access
Synchronous, and the consistency group operation, see the HP StorageWorks RAID Manager User
Guide or the HP StorageWorks Business Continuity Manager Software User Guide.
Figure 4 Creation and Operation of XP Continuous Access Synchronous Pairs that Specifies the
Consistency Group
If the split command (Pairsplit-r or YKSUSPND) is issued to a consistency group of XP Continuous
Access synchronous pairs and if the I/O processing on the volumes in the consistency group has
not finished, the split operation to the XP Continuous Access volume pairs is executed to maintain
the data consistency after the I/O processing and the transfer of the data to the S-VOLs have
finished.
shows the split operation for volume B finishes after the I/O processing and
the transfer of the data to the S-VOL. The I/O processing on volume B in the consistency group
has not completed when the split command is issued
XP Continuous Access Synchronous Consistency Group Operations
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