Optional parameters

CGROUP

Specifies whether a PPRC volume pair in a consistency group remains in a long-busy condition for a specified period following an error that is related to the associated volume pair. When an error occurs and one of the volumes in the consistency group becomes suspended, volumes in that consistency group become suspended the next time they are written to.

You must specify one of the following values with the CGROUP parameter:

NO: Specifies that if an error occurs to a PPRC volume pair in a consistency group, the long-busy condition is not enabled for the associated volume pair. NO is the default.
YES: Specifies that if an error occurs to a PPRC volume pair in a consistency group, the long-busy condition is enabled for the associated volume pair. Automation products can detect PPRC volume pair outages on these devices and take appropriate action.

RESETHP

At this time, only the ESS subsystem supports the RESETHP option. This parameter is ignored when you have specified wwnn on the PRIM and SEC parameters.

You must specify one of the following values with the RESETHP parameter:

NO: Specifies that PPRC not reset existing host system paths to the primary subsystem before establishing links to the secondary subsystem. The default is NO.
YES: Specifies that PPRC reset existing host system paths to the primary subsystem before establishing links to the secondary subsystem.

SUBCHSET

Specifies the subchannel set in which the command is to be issued. The subchannel set where the I/O will be issued is the subchannel set as defined in the Hardware Configuration Dialog (HCD). The valid values are determined by what is supported by the host system's processor and configured for the device.

If you omit the parameter, the command is issued to the device that is logically in subchannel set 0. If a swap has occurred, this could be the device that was defined in an alternate subchannel set in the I/O configuration (IODF), with HCD.