Hitachi ShadowImage for z/OS user guide (HIT9503-96004, June 2006)

126 ShadowImage for the XP1024/XP128/XP12000/XP10000
NOTE:
• All combinations other than shown in Table 59 will result in rejection of this command.
• The information specified by the XTNTLST parameter is supported only when the following conditions
are fully met:
• The information specified by the XTNTLST parameter must be for both the source and target. If the
information specified by the XTNTLST parameter is only for one of the two, the copy operation will
result as an error.
• The size of the specified copy source and target extents must be the same.
Each of the example cases listed in Table 59 is further explained below with the command description and
illustration.
• Case 1: FCWITHDR command (TDEVN: specified, DDSW = NO)
Below is an example of the command description for Case 1. This example requests the withdrawal of
all the relationships established with the copy target extents existing in the device numbered 4203.
50 h
Figure 71 Example of FCWITHDR Command Description (for Case 1)
By executing the command described above, the relationship established with the specified target,
Dataset 3, in the device numbered 4203 is withdrawn. Whereas, the relationship established with
Dataset 4 is not withdrawn because it is the dataset specified as the source. In short, there are two
6 Specified Specified
or not
specified
Not
specified
YES Specified Specified Not specified Among the
relationships
established with the
device specified by
SDEVN, all the
relationships that partly
or entirely include the
copy target extents
specified by the
XTNTLST parameter are
withdrawn. The
information about the
specified TDEVN and
the copy target extents
specified by the
XTNTLST parameter are
ignored. See Figure 86.
7Not
specified
Not
specified
Specified NO Not
specified
Not
specified
THAW Resume the write
operation to the
volumes that belong to
the CU specified by
DEVN parameter.
Relationships (pairs)
will not be withdrawn.
Table 59 Parameters of FCWITHDR Command and Applicable Combinations (continued)
Case No. SDEVN TDEVN DEVN DDSW XTNTLST ACTION Process
Source Target
FCWITHDR TDEVN(X'4203')