z/VM: CP Commands and Utilities Reference - z/VM - IBM

SET CACHEFW
Messages
fast write function has been deactivated. This response is also repeated for each
unique subsystem identified by the devices specified on the command line.
rdev Cache fast write function was deactivated by userid.
rdev
is the real device number of one of the specified devices in a subsystem for
which the cache fast write function has been deactivated.
userid
is the ID of the user who issued the command.
HCP006E Invalid device type - {rdev|vdev|ldev}
HCP009E Invalid range - range
HCP021E A real device number was not supplied
or it is invalid.
HCP026E Operand missing or invalid
HCP040E Device {rdev|vdev|ldev} does not exist
HCP046E type rdev offline
HCP319E Error processing subsystem command
- cmd for DASD rdev
HCP332E Invalid control unit type - rdev
HCP1109E The command command cannot be
processed for device rdev because the
device is the secondary in a duplex
pair.
1202 z/VM: CP Commands and Utilities Reference