HP StorageWorks P9000 Reference Manual page 218

CGNAME(name-of-TrueCopy-copy-group-with-HyperSwap-attribute) ~ <string of 8 or fewer
characters>
Specify the name of a CA copy group with the HyperSwap attribute.
HS({CHECK|NOCHECK})
Specify whether to check if HyperSwaps are enabled for the detected PPRC copy pairs.
CHECK
Acquires the UCB information (UCBHSWAP) of the P-VOLs of detected PPRC copy pairs and
checks whether HyperSwaps are enabled. Only those PPRC copy pairs for which UCBHSWAP
is set to ON are defined as a CA copy group with the HyperSwap attribute.
NOCHECK
Does not check whether HyperSwaps are enabled for the detected PPRC copy pairs. Instead,
all detected copy pairs are defined as a CA copy group with the HyperSwap attribute.
NOTE:
If a copy group definition file with the same name as the name specified in the CGNAME
parameter already exists, executing the YKH2B command overwrites the existing file with the
newly created file. To retain the existing file, specify in the CGNAME parameter a name that
is different from any existing copy group definition file name.
When you specify NOCHECK for the HS parameter, for the scan range, include only PPRC
TrueCopy copy pair volumes for which HyperSwap is enabled. If volumes of non-PPRC
TrueCopy copy pairs or volumes of PPRC copy pairs for which HyperSwap is not enabled are
included in the scan range, the copy pairs will be processed as PPRC copy pairs for which
HyperSwap is enabled. They will also be defined together as a TrueCopy copy group with
the HyperSwap attribute.
Return codes
Table 1 17 (page 218)
Table 1 17 YKH2B Command Return Code List
Return Code
0
4
8
44
48
64
218 CLI Commands
lists the return codes to be returned when the YKH2B command terminates.
Meaning
The command terminated normally. A copy group definition file was created.
The command terminated normally. No copy pairs were detected within the specified
device number range.
Although a copy group definition file was generated, undefined volume information
was detected in the disk configuration definition file at the site specified by the DAD
parameter for a pair that is within the range specified by the DEVN parameter.
Although a copy group definition file was generated, a change was detected in an
I/O configuration while the YKH2B command was being executed by omitting the
HS parameter or by specifying CHECK.
Although a copy group definition file was generated, a storage system that does not
support 2DC configurations with HyperSwap and CAJ was detected.
An I/O error occurred in a volume within the scan range. A copy group definition file
was created for the successfully detected volumes.
Termination due to processing errors. No copy group definition file was created.
Termination due to invalid parameters.
An error occurred during REXX processing.