HP StorageWorks XP24000 User Manual page 13

Steady Split in the Split Volume Pair dialog box. You also need the XP for Business Continuity
Manager Software™ to perform At-Time Split.
Split pair operation by Quick Split:
When the quick split operation starts, the pair status changes to V-split. You have full read/write
access to the split T-VOL (even though it is still reserved). The whole S-VOL data or differential
data at that time will be copied to the T-VOL in the background.
For information about Read/Write operations from host servers to S-VOLs and T-VOLs of SIz
pairs during quick split operation, see
Operation" (page
Split pair operation by Steady Split:
When the steady split operation starts, the pair status changes to SP-pending. The whole S-VOL
data or differential data at that time will be copied to the T-VOL. When the steady split
operation is complete, you have full read/write access to the split T-VOL (even though it is still
reserved). To quickly finish the copy operation to access the T-VOL, make the S-VOL offline
before the operation.
For information about Read/Write operations from host servers to S-VOLs and T-VOLs of SIz
pairs during steady split operation, see
Pair Operation" (page
Split pair operation by At-Time Split
To split pair by the At-Time Split function, you need the XP for Business Continuity Manager
Software™. To perform the split operation by using the At-Time Split function, you must specify
a copy group or register the split time in the copy group. The split time indicates the time when
you want to store the S-VOL data to the T-VOL. For example, if you register the CTG of
ShadowImage for Mainframe as the copy group of the XP for Business Continuity Manager
Software™, the At-Time Split function enables you to copy data from the SIz S-VOLs in the
same CTG to T-VOLs simultaneously. The T-VOLs will contain the same data as the S-VOLs
when the Split operation is performed.
Figure 4 (page 14)
"Operations from the Host Servers during the Split Pair
75).
"Operations from the Host Servers during the Split
75).
and Figure 5 (page 14) show the outline of the At-Time Split function.
ShadowImage for Mainframe Operations 13