Manual

3 Sharing Business Copy Z volumes
You can share BC Z volumes with other HP software product volumes. This chapter discusses
requirements, recommendations, and restrictions for sharing volumes.
Cache Residency
You can use volumes with Cache Residency settings as BC Z P-VOLs and S-VOLs.
NOTE: For important information about the operation and volumes with Cache Residency settings,
see the bullet on Quick Restore in “Planning for performance” (page 18).
Compatible FlashCopy
You can share a BC Z S-VOL with a Compatible FlashCopy S-VOL. This is the only configuration
possible with Compatible FlashCopy.
• You can perform the following BC Z operations: Add pair, Split pair, Suspend Pair,
Resynchronize Pair, Delete Pair
• You cannot perform the following BC Z operations: Reverse Resync, Quick Restore
• Establishing and deleting Compatible FlashCopy relationships are the only operations allowed
on volumes shared with BC Z. The BC Z pair cannot be in Resync-R/REVRSY.
• If you are sharing volumes, you can create the number of pairs supported by each software
application:
◦ BC Z: 3
◦ Compatible FlashCopy: 16
For more information, see the HP XP P9000 for Compatible FlashCopy Mirroring User Guide.
Compatible FlashCopy SE
For information, see the topic on interoperability in the HP Musashi for Compatible FlashCopy
Mirroring User Guide.
Compatible XRC
If a BC Z S-VOL and a Compatible XRC source volume (original data) share the same volume, you
cannot perform the Reverse Copy or Quick Restore operation.
CAUTION: Do not use Compatible XRC T-VOLs (copied data) for BC Z volumes.
Concurrent Copy
If BC Z S-VOLs and Concurrent Copy source volume (original data) share the same volumes, you
cannot perform the Reverse Copy or Quick Restore operation for those volumes.
NOTE: Do not use Concurrent Copy T-VOLs (copied data) for BC Z volumes.
24 Sharing Business Copy Z volumes