HP XP7 Storage - Manual (Page 32)

If S-VOL and T-VOL of Compatible FlashCopy are both Thin Provisioning Z volumes, the number
of pages remaining in T-VOL may differ depending on the timing.
The procedures when you use a DFSMS,TSO, or ICKDSF command are as follows. You cannot
perform Fast Reverse Restore when you use DFSMSdss.
Using DFSMS commands to share Compatible FlashCopy and Cnt Ac-S Z volumes
Note: If the status of the Cnt Ac-S Z pair is duplex, you need to use a TSO command instead of a
DFSMS command.
To share a Compatible FlashCopy S-VOL and a Cnt Ac-S Z S-VOL:
1.
To maintain the consistency of data, terminate I/O operations to the volumes of Cnt Ac-S Z
pairs.
2. Suspend the Cnt Ac-S Z pair. Example:
CSUSPEND DEVN(X'dev#) PRIM(X'ssid') serial# X'cca' X'lss')
SEC(X'ssid' serial# X'lss')
3. Vary the Cnt Ac-S Z S-VOL online.
The host will be able to recognize the dataset on the Cnt Ac-S Z S-VOL and determine the
extent for establishing a Compatible FlashCopy relationship.
If the same host is connected to both Cnt Ac-S Z P-VOL and S-VOL, the S-VOL label must be
rewritten.
4. Establish the Compatible FlashCopy relationship. Example:
COPY FULL INDYNAM(xxxxxx) OUTDYNAM(yyyyyy) FASTREP(REQ)
5. When step 4 completes, vary the Cnt Ac-S Z S-VOL offline.
6. Resynchronize the Cnt Ac-S Z pair.
To share a Compatible FlashCopy T-VOL and a Cnt Ac-S Z P-VOL:
1.
To maintain the consistency of data, terminate I/O operations to the volumes of Cnt Ac-S Z
pairs.
2. Confirm that the Cnt Ac-S Z pair status is Duplex.
3. Establish the Compatible FlashCopy relationship. Example:
COPY FULL INDYNAM(xxxxxx) OUTDYNAM(yyyyyy) FASTREP(REQ) FCTOPPRCPRIMARY
Using TSO commands to share Compatible FlashCopy and Cnt Ac-S Z volumes
To share a Compatible FlashCopy S-VOL and a Cnt Ac-S Z S-VOL:
1.
To maintain the consistency of data, terminate I/O operations to the volumes of Cnt Ac-S Z
pairs.
2. Establish the Compatible FlashCopy relationship. Example:
FCESTABL SDEVN(X'xxxx') TDEVN(X'yyyy') MODE(COPY) ONLINTGT(YES)
To share a Compatible FlashCopy T-VOL and a Cnt Ac-S Z P-VOL:
1.
To maintain the consistency of data, terminate I/O operations to the volumes of Cnt Ac-S Z
pairs.
2. Confirm that the Cnt Ac-S Z pair status is Duplex.
3. Establish the Compatible FlashCopy relationship. Example:
COPY FULL INDYNAM(xxxxxx) OUTDYNAM(yyyyyy) FASTREP(REQ) TCTOPPRCPRIMARY
Using ICKDSF commands to share Compatible FlashCopy and Cnt Ac-S Z volumes
For details about the ICKDSF command for creating Compatible FlashCopy relationships, see
(page 42) .
To share a Compatible FlashCopy S-VOL and a Cnt Ac-S Z S-VOL:
32 About Compatible FlashCopy