HP StorageWorks XP Remote Web Console Software - Manual (Page 21)

Figure 4 Creating and updating XP Continuous Access Synchronous pairs in consistency groups
If the split command (Pairsplit-r) is issued to a consistency group of XP Continuous Access
synchronous pair and if the I/O processing on some volumes in the consistency group is in progress,
the split operation is executed on volume pairs for maintaining the data consistency after the I/O
processing and the transfer of the data to the S-VOLs have finished.
Figure 5 Split command processing in a consistency group with I/O activity
Figure 5 (page 21) shows that the split operation for volume B finishes after the I/O processing
and the transfer of the data to the S VOL, because the I/O processing on volume B in the consistency
group has not finished when the split command is issued.
XP Continuous Access Synchronous consistency group operations 21