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Figure 5 Reverse and quick restore pair operations
NOTE:
TheP-VOLremainsread-enabledduringthequickrestoreoperationonlytoenablethehosttorecognize
the volume. Data on the P-VOL is not guaranteed until the quick restore operation is complete and
the status changes to PAIR.
NOTE:
When a quick restore operation is in progress, the array management user interface may display old
configuration information. To update the information in the user interface, wait for the quick restore
operation to finish, and click Refresh.
CAUTION:
During a quick restore operation, the RAID levels, HDD types,andCache LUN settings of the P-VOL and
S-VOL are exchanged. For example, if the P-VOL has a RAID-1 level and the S-VOL has a RAID-5 level,
the qui
ck restore operation changes the P-VOL to RAID-5 and the S-VOL to RAID-1.
To avoid any performance impact due to the quick restore operation
1. Ensure that the P-VOL and S-VOL have the same RAID level and HDD type before performing the
quick restore operation. To restore the original volume designations after a quick restore, stop host
I/Os to the pair, split the pair, perform the quick restore operation for that pair again, and restart
host I/Os to the pair.
Business Copy XP user guide
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