Manual

3. In the Suspend Pairs window, type a Task Name and click Apply.
Pair split
Host updates to the P-VOL and periodic copying to the S-VOL continue until the pair is split. After
the pair is split, updates continue to the P-VOL but are not copied to the S-VOL; data in the S-VOL
is ensured at the time of the split. Update data that accrues during the split is stored in differential
bitmaps until it is copied to the S-VOL during resynchronization.
The P-VOL and S-VOL are synchronized when the pair status changes from V-Split/SUSPVS or
SP-Pend/TRANS to Split/SUSPOP.
Related information
• “Types of split operations” (page 42)
• “Prerequisite information for splitting pairs” (page 43)
• “Splitting pairs” (page 43)
• “Splitting pairs in a consistency group using At-Time Split workflow” (page 44)
Types of split operations
Four options are available when splitting a pair:
• Steady split, which copies all differential data to the S-VOL and then splits the pair.
• Quick split, in which the pair is immediately split, so that the S-VOL is immediately available
for read and write I/O. Remaining differential data is copied to the S-VOL in the background.
• At-Time Split at specified times, in which all pairs in a copy group are split at the same time.
Split time indicates the time when you want to mirror P-VOL data in the S-VOL. BCM is required
for this operation.
• Split all pairs in a consistency group. This operation requires PPRC and is similar to the At-Time
Split using BCM. However, with the PPRC operation, you cannot specify the split-time and you
can only Quick Split pairs in a consistency group. For more information, see “Pair operations
using PPRC” (page 70).
For split operations with RAID Manager, both Quick Split and Steady Split are available.
For more information, see HP XP P9000 RAID Manager User Guide.
42 Performing pair operations