HP XP P9500 Reference Manual page 208

When the command monitors the status of a copy pair in an BC copy group to which the CAJ
ATTIME suspend time has been set, the check operation differs depending on whether the
NOINVALIDCHECK parameter is specified:
If the NOINVALIDCHECK parameter is not specified
The status of the CAJ copy pair at the time of BC copy pair suspension will be checked. If an
error is detected, the YKZ407E message, YKZ408E message, or YKZ409E message is output
and the command terminates abnormally with return code 24.
If the NOINVALIDCHECK parameter is specified
The status of the CAJ copy pair at the time of BC copy pair suspension will not be checked.
DEVN(p-vol-device-number,s-vol-device-number) ~ <4-digit hexadecimal number, 4-digit
hexadecimal number>
Specify the device number of the copy pair (P-VOL and S-VOL) to operate.
Note that, for CG containers specified by EXCTG ID, the command checks the EXCTG registration
information for all CG containers.
After specifying the copy pair to operate, to view REXX variables (such as SimplexCt) shown in
information for copy pairs that are not operation targets, execute the YKQUERY command or
YKEWAIT command for all copy pairs.
TO({PRIMARY|SECONDARY})
Applies to Continuous Access Synchronous for Mainframe, Continuous Access Synchronous for
Mainframe with the HyperSwap attribute, Continuous Access Asynchronous for Mainframe, and
Continuous Access Journal for Mainframe.
Specify this parameter to monitor copy groups by monitoring the status of either P-VOLs or S-VOLs.
When the TO parameter is specified, the copy group container is not checked for EXCTG registration
information.
PRIMARY
Monitors the status of P-VOL during copy group definition.
SECONDARY
Monitors the status of S-VOL during copy group definition.
VOLUNIT
Usually, information is obtained for each CU, but when this parameter is specified, information is
obtained for each volume.
Return Codes
Table 107 (page 208)
Table 107 YKEWAIT Command Return Code List
Return Code
-4095 to -4040
-3
-1
208 CLI Commands
lists the return codes to be returned when the YKEWAIT command terminates.
Meaning
The command terminated abnormally, possibly because the user SVC routine has
not been included properly.
The module cannot be loaded. Possible causes are as follows:
The library dataset has not been linked.
The module is protected by the RACF program control function.
An interruption occurred during execution.