HP XP P9500 Storage - Manual (Page 86)

examples show the same content represented by a different description, both requesting the
withdrawal of all the relationships established with the device numbered 4202.
Example 6 FCWITHDR command description (SDEVN and TDEVN: specified, DDSW = YES)
FCWITHDR SDEVN(X'4202') DDSW(YES)
FCWITHDR SDEVN(X'4202') TDEVN(X'4203') DDSW(YES)
By executing the FCWITHDR command described in the example, the relations established with
Dataset 1 and Dataset 2 in the device numbered 4202 are withdrawn. As a result, there are no
longer any relationships established with the device numbered 4202 after executing this command.
See the following figure:
Figure 40 FCWITHDR command processing (SDEVN and TDEVN: specified, DDSW = YES) (for Case
5)
Case 6: SDEVN and TDEVN Specified, DDSW = YES, XTNTLST Parameter Specified
Among the relationships established with the device specified by SDEVN:
•
Relationships that partly or entirely include the copy target extents specified by the XTNTLST
parameter are withdrawn.
•
Information about the specified TDEVN and the copy target extents that are specified by the
XTNTLST parameter are ignored.
When the FCWITHDR command is executed with the DDSW parameter set to YES, and the XTNTLST
parameter is specified, only the XTNTLST parameter values that are specified for the copy source
extent are put into effect. When there are no relationships existing within the copy source extent
that is specified by the XTNTLST parameter values, the FCWITHDR command does nothing and
ends normally.
The following shows two examples of the command descriptions for Case 6. Both examples request
the withdrawal of all those relationships among the relationships established with the device
numbered 4202 that are included in the extent specified by the XTNTLST parameter. When DDSW
parameter is set to YES, the TDEVN parameter values and the XTNLST parameter values for the
copy target extent are ignored. Therefore, the two command descriptions in the example both give
the same result.
86 Performing Compatible FlashCopy operations