HP XP Business Copy Software - Manual (Page 154)

154 ShadowImage for the XP1024/XP128/XP12000/XP10000/SVS 200
5. See Table 70 on page 150 and specify any other necessary parameters.
6. Execute the FLASHCPY ESTABLISH command.
Figure 98 Example of the FLASHCPY ESTABLISH Command
Creating FlashCopy® Mirror Version 2 Pairs by Using Incremental FlashCopy
(Restore): FLASHCPY ESTABLISH
To re-create pairs and copy the differential data after creating FlashCopy Mirror Version 2 pairs by using
the Incremental FlashCopy function:
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 if the OS of the host server is MVS.
3. Specify SYSNAME of the ASSGN system control statement in the SYSNAME parameter if the OS of the
host server is VSE.
4. Specify the CU number, LDEV number, and device number of the T VOL for the TARGETVOL parameter.
5. Specify YES for the CHANGERECORDING parameter and execute the FLASHCPY ESTABLISH
command.
The FlashCopy Mirror Version 2 pair will be created.
6. Specify the RESTORE parameter and execute the FLASHCPY ESTABLISH command.
Figure 99 Example of the FLASHCPY ESTABLISH command (RESTORE specified)
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 from the S VOL.
NOTE: Set the CHANGERECORDING parameter to YES to maintain the relationship after 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 copying process is
completed.
Creating FlashCopy® Mirror Version 2 Pairs by Using Incremental FlashCopy (Reverse Restore):
FLASHCPY ESTABLISH
To create a FlashCopy Mirror 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.
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) CHANGERECORDING(YES)
ONLINTGT(YES)
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) CHANGERECORDING(YES)
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) RESTORE
FLASHCPY ESTABLISH UNIT(X'7000') TARGETVOL(X'00',X'01',7001) CHANGERECORDING(YES)