HP StorageWorks XP Remote Web Console Software - Manual (Page 96)

1. Set the T-VOL to offline.
2. Specify the JCL statement in the DDNAME parameter or specify the S-VOL device number in
the UNITADDRESS parameter.
3. Specify the CU number, LDEV number, and device number of the T-VOL for the TARGETVOL
parameter.
4. Specify YES for the CHANGERECORDING parameter, and then execute the FLASHCPY
ESTABLISH
command as shown in “FLASHCPY ESTABLISH Command (Incremental
FlashCopy)” (page 96) .
Figure 51 FLASHCPY ESTABLISH Command (Incremental FlashCopy)
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) CHANGERECORDING(YES)
The Version 2 pair will be created.
5. Specify the RESTORE parameter and execute the FLASHCPY ESTABLISH command as shown
in
“FLASHCPY ESTABLISH Command (RESTORE Specified)” (page 96) .
Figure 52 FLASHCPY ESTABLISH Command (RESTORE Specified)
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) RESTORE
When the S-VOL is updated, only the data of the updated part of the S-VOL (differential data)
will be copied to the T-VOL. When the T-VOL is updated, only the data of the updated part
of the T-VOL will be copied to the S-VOL.
6. Set the CHANGERECORDING parameter to YES to maintain the relationship after the copying
process is completed and to manage the differential data between the S-VOL and the T-VOL.
If CHANGERECORDING parameter is not specified, the relationship will be deleted after the
copying process is completed.
Creating Version 2 Pairs by Using Incremental FlashCopy (Reverse Restore): FLASHCPY
ESTABLISH
To create Version 2 pairs by using the Incremental FlashCopy function, and then reverse the S-VOL
and the T-VOL (Reverse Restore) so that the differential data will be copied:
1. Set the T-VOL to offline.
2. Specify the JCL statement in the DDNAME parameter or specify the S-VOL device number in
the UNITADDRESS parameter.
3. Specify the CU number, LDEV number, and device number of the T-VOL for the TARGETVOL
parameter.
4. Execute the FLASHCPY ESTABLISH command, specifying YES for the CHANGERECORDING
parameter as shown in
“FLASHCPY ESTABLISH Command (Incremental FlashCopy)”
(page 96) .
Figure 53 FLASHCPY ESTABLISH Command (Incremental FlashCopy)
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) CHANGERECORDING(YES)
The Version 2 pair will be created.
5. Execute the FLASHCPY ESTABLISH command, specifying the RESTORE parameter and
reversing the S-VOL and the T-VOL as shown in
“FLASHCPY ESTABLISH Command (Reverse
Restore)” (page 97) .
96 Performing Version 2 Operations