HP XP Business Copy Software - Manual (Page 135)

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NOTE:
•
The timing to copy the data is different between FlashCopy Mirror Version 2 and IBM FlashCopy. IBM
FlashCopy copies data when data in either the source or target volume is updated.
• To execute the XTNTLST parameter, the size of the copy source extent and the copy target extent must
be the same.
• When you use the TGTUCB parameter, it is necessary to apply APAR OA18914.
Creating FlashCopy Mirror Version 2 Pairs: FCESTABL
When the FCESTABL command (TSO command) with EXTENTS parameter specified is executed, only the
data on the copy source extent(s) specified by the EXTENTS parameter are copied from the volume
specified as the source by SDEVN to the volume specified as the target by TDEVN. For example, when you
copy only the “dataset 2", the copy operation processes as shown in Figure 72 . When you do not specify
the EXTENTS parameter, the entire source volume is copied to the target volume.
Figure 72 Copying a Dataset by Using TSO (FCESTABL) Command with EXTENTS Parameter Specified
When the FCESTABL command (TSO command) with XTNTLTS parameter specified is executed, only the
data on the copy source extent(s) specified by the XTNTLTS parameter are copied to the copy target
TGTUCB YES - Specifies the device number (device address) of the T-VOL on which you
want to perform the FCESTABL command. To specify this number, use the TDEVN
parameter.
YES is the default setting.
NO - Specifies the DKC device number (LDEV number) of the T-VOL on which you
want to perform the FCESTABL command. To specify this number, use the TARGET
parameter instead of TDEVN.
TARGET Serial number, LSS, CCA - Specifies the DKC device number (LDEV number) of the
T-VOL on which you want to perform the FCESTABL command.
Use this parameter when TGTUCB is NO.
FCQUERY DEVN Device number. Specify the number (device address) of the volume on which you
want to perform FCQUERY command.
Table 66 Parameters of PPRC TSO Commands Supported by FlashCopy Mirror Version 2 (continued)
Command Parameter Description