HP XP P9500 Storage - Manual (Page 90)

The background copying process is executed on the relationship when the copy source of the
relationship is in the DDNAME, SYSNAME, or UNITADDRESS-VOLume. In addition, the relationship
is released when its copy source is in the DDNAME, SYSNAME, or UNITADDRESS-VOLume.
Using ANTRQST macro to release Compatible FlashCopy relationships
The following table shows the parameters that you use with the ANTRQST Macro command when
you release Compatible FlashCopy relationships:
Table 50 Parameters for the ANTRQST macro command (REQUEST=FCWITHDRAW)
Description Value Parameter
Specifies the device number (device address) of the S-VOL on which you want to
perform the FCWITHDRAW command. Source device
number SDEVN
Specifies the device number (device address) of the T-VOL on which you want to
perform the FCWITHDRAW command. Target device
number TDEVN
Specifies the number (device address) of the device on which you want to perform
the FCWITHDRAW command with ACTION parameter. Device number DEVN
Resumes the write operation from the host to the volumes that belong to the same CU
of the device specified by the DEVN parameter. THAW ACTION
Obtains the return code and the reason code of the execution results. For details about
the codes, see the IBM manual. Return value RETINFO
The relationships established on the volume specified as the copy source by SDEVN
are withdrawn. The relationships are withdrawn after the contents of the volume
specified as the copy target by TDEVN are fixed. YES DDSW
Default setting. The relationships established on the copy target are all withdrawn.
For further information about this parameter, see
“USING ICKDSF to release Compatible
FlashCopy relationships” (page 88) .
NO
Specifies the extent (the range to withdraw the relationship) on the starting and ending
addresses of the source with CCHH (cylinder and head numbers). Up to 32 extents Copy source
extent (copy
range) SRCEXTENTS
can be specified. When SRCEXTENTS is not specified, the relationships on all tracks
are withdrawn.
Specifies the extent (the range to withdraw the relationship) on the starting and ending
addresses of the target with CCHH (cylinder and head numbers). Up to 32 extents Copy target
extent (copy
range) TGTEXTENTS
can be specified. When TGTEXTENTS is not specified, the relationships on all tracks
are withdrawn.
Specifies the device number (device address) of the T-VOL on which you want to
perform the FCWITHDRAW command. To specify this number, use the TDEVN
parameter. YES is the default setting. YES TGTUCB
Specifies the DKC device number (LDEV number) of the T-VOL on which you want to
perform the FCWITHDRAW command. To specify this number, use the TGTSERIAL,
TGTLSS, and TGTDVC parameters instead of TDEVN. NO
Specifies the DKC device number of the T-VOL on which you want to perform the
FCWITHDRAW command. Use this parameter when the TGTUCB parameter is NO. Serial number TGTSERIAL
Specifies the LSS of the T-VOL on which you want to perform the FCWITHDRAW
command. Use this parameter when the TGTUCB parameter is NO. LSS TGTLSS
Specifies the CCA of the T-VOL on which you want to perform the FCWITHDRAW
command. Use this parameter when the TGTUCB parameter is NO. CCA TGTDVC
Using z/VM CP to release Compatible FlashCopy relationships
The relationship that is established by the FLASHCOPY ESTABLISH command of the z/VM CP
commands is not released even after the completion of the copy.
To release a Compatible FlashCopy relationship, use the FLASHCOPY WITHDRAW command.
90 Performing Compatible FlashCopy operations