HP StorageWorks XP Business Copy Software user guide: HP XP12000 Disk Array, HP XP10000 Disk Array, HP 200 Storage Virtualization System (T1713-96027, April 2010)

4. The following are the types of pair status (PSUS and PSUE) when the pair is not synchronized:
• When you split a pair (pairsplit), the pair status changes to COPY(SP) or PSUS(SP) for quick
pairsplit. During the pairsplit process, the pair status becomes COPY(SP). If you specify Quick
Split pairsplit, the pair status becomes PSUS(SP) during the process. When the pairsplit oper-
ation is complete, the pair status changes to PSUS and you can access the split S-VOL. The
update copy operation is not performed on pairs with status of PSUS.
• If the disk array cannot maintain PAIR status for any reason or if you suspend the pair (pairsplit-
E), the pair status changes to PSUE.
NOTE:
• When you specify reverse or quick restore mode for a pairresync operation, the pair
status changes to COPY(RS-R) (data is copied in the reverse direction from the S-VOL
to the P-VOL). For more information about pairresync operation settings, see Pairresync
operations.
• When you delete a pair (pairsplit-S), the pair status changes to SMPL. You cannot delete
a pair with status of PSUS(SP).
Business Copy XP (BC) for the Array40