Requirements for maintaining business copy, Identifying the source and target volumes, Cautions on maintaining the devices – HP StorageWorks XP Remote Web Console Software User Manual
Page 47
• Release the Cache Residency Manager settings of the P-VOL and S-VOL before the quick
restore operation, and then reset the Cache Residency Manager settings of the P-VOL and
S-VOL after the pair changes to PAIR status as a result of the quick restore operation.
If you do not perform one of the above mentioned operations, the change of location of the
cache residence areas may cause I/O performance to the Cache Residency Manager data
to be severely attenuated. For details about Cache Residency Manager settings, see the HP
StorageWorks XP24000 Cache Residency Manager User’s Guide.
Identifying the Source and Target Volumes
For each volume, set the LU path, whether the volume will be a P-VOL or S-VOL, and the other volumes in
its pair (see
on page 47 for a sample table). For details about how to set the LU path, see the
HP StorageWorks XP24000 LUN Manager User’s Guide.
Table 11 Sample Table for Business Copy Configuration Information
CU# Port GID:LUN L1
P-VOL?
Associated
L1 S-VOLs
L1
S-VOL?
Assoc.
L1
P-VOL
L2
P-VOL?
Associated
L2 S-VOLs
L2
S-VOL?
Assoc.
L2
P-VOL
0
1A
0:00
Yes
1B-0:00,
2A-0:00,
2B-0:00
No
--
No
--
No
--
0
1A
0:01
Yes
1B-0:01,
2A-0:01,
2B-0:01
No
--
No
--
No
--
etc.
0
1B
0:00
No
--
Yes
1A-0:00 Yes
3A-0:00,
3A-0:01
No
--
0
1B
0:01
No
--
Yes
1A-0:01 Yes
3B-0:00,
3B-0:01
No
--
etc.
0
2A
0:00
No
--
Yes
1A-0:00 Yes
4A-0:00,
3B-0:01
No
--
0
2A
0:01
No
--
Yes
1A-0:01 Yes
4B-0:00,
3B-0:01
No
--
etc.
0
3A
0:00
No
--
No
--
No
--
Yes
1B-0:00
0
3A
0:01
No
--
No
--
No
--
Yes
1B-0:00
The volumes that will be P-VOLs will remain fully accessible to all hosts throughout normal Business
Copy operations, but the volumes that will be S-VOLs will need to be unmounted before being reserved
for Business Copy operations.
Requirements for Maintaining Business Copy
This section describes the requirements for maintenance related to Business Copy. Remember that in some
cases you need to re-create Business Copy pairs after the storage system maintenance or microcode
updates. Also note that if the Business Copy operations are not complete because of failures, copying
process will be automatically suspended.
Cautions on Maintaining the Devices
•
Maintenance of PDEV
XP24000 Business Copy Software User's Guide
47