HP StorageWorks XP Remote Web Console Software - Manual (Page 81)

• The Resync Type drop-down list allows you to select the pairresync type for the pairs being
resynchronized (from Normal Copy(P->S), Quick Resync(P->S), Reverse Copy(S->P), or Quick
Restore(S->P)). Remember that you must select either Normal Copy(P->S) or Quick Resync(P->S) if
the selected pair is L2 pair or its status is PSUE. Before selecting Reverse Copy(S->P) or Quick
Restore(S->P), make sure that the pair you are going to select meets the following requirements:
Table 24 Requirements for Reverse Copy(S->P) or Quick Restore(S->P) Pairresync
Operations
Parameter Requirements
Pair status
The specified pair must be in the PSUS state. All other pairs that share the same
P-VOL as the specified pair must also be in the PSUS or PSUE state.
Pair type
Note that whether you can or can not execute a quick restore command to a pair
that consists of VLL and normal volumes depends on the emulation type of the
volume. For details, see Table 25 on page 81.
Shared Business
Copy/Continuous
Access volume.
If the Business Copy and Continuous Access pairs share the same volume, and the
Continuous Access pair is not suspended, the reverse and quick restore pairresync
operations cannot be performed.
Note that you cannot perform Quick Restore when Business Copy and Continuous
Access pairs include external volumes.
Shared Business
Copy/Continuous
Access Journal
volume.
If the Business Copy and Continuous Access Journal pairs share the same volume,
and the Continuous Access Journal pair is not suspended, the reverse and quick
restore pairresync operations cannot be performed.
Note that you cannot perform Quick Restore when Business Copy and Continuous
Access Journal pairs include external volumes.
Note: During the reverse or quick restore pairresync operation, a Continuous Access pair nor a
Continuous Access Journal pair cannot be created. The Continuous Access paircreate command
and the Continuous Access Journal paircreate command will be rejected when the Business Copy
pair status is COPY(RS-R).
Table 25 Executability of Quick Restore Command to Pairs that Consist of VLL
Volume and Normal Volumes
P-VOL S-VOL
Normal Volume
(not OPEN-V)
Normal Volume
(OPEN-V)
VLL Volume
(not OPEN-V)
VLL Volume
( OPEN-V)
Normal Volume (not
OPEN-V)
Executable - Not executable -
Normal Volume (OPEN-V) - Executable - Executable
VLL Volume (not OPEN-V) Not executable - Executable －
VLL Volume (OPEN-V) - Executable - Executable
- : You cannot make pairs of the volumes.
• The Copy Pace drop-down list allows you to select the copy pace (from Slower, Medium, or Faster)
for all the pairs that you are resynchronizing.
When resynchronizing pairs, you can select the pace for the pairresync operations: slower,
medium, or faster. The slower pace minimizes the impact of Business Copy operations on storage
system I/O performance. The faster pace resynchronizes the pairs as quickly as possible, but it
may affect the storage system I/O performance.
• The OK button adds the operation setting displayed in the Pairresync Volume List for
resynchronizing the specified pairs to the Preview List on the Pair Operation window.
Note: You must click Apply on the Pair Operation window to start the pairresync operation for
the specified pairs.
• The Cancel button cancels the operations set in the Pairresync dialog box and closes the dialog
box.
XP24000 Business Copy Software User's Guide 81