SCF Reference Manual for the Storage Subsystem (G06.27+, H06.04+)

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-008
14-92
PRIMARY Command
PRIMARY Command
The PRIMARY command swaps the primary and backup processors for a device or
process. The current primary process becomes the backup process, and the current
backup process becomes the primary process, but the PRIMARYCPU and
BACKUPCPU values stay the same.
Supported objects are:
PRIMARY is a sensitive command.
PRIMARY DISK Command
The PRIMARY DISK command swaps the primary and backup processors for the disk
process controlling the specified magnetic or virtual disk. The current primary process
becomes the backup process, and the current backup process becomes the primary
process, but the PRIMARYCPU and BACKUPCPU values stay the same. The syntax
is:
Wild-card characters are supported.
OUT file-spec
directs all SCF output to the specified file.
DISK $disk
is the name of the disk.
cpunumber
is the processor number of the processor that is to become the primary processor.
This decimal integer must identify one of the two processors configured as primary
and backup processors for the device. If you do not specify a processor number,
the storage subsystem manager determines which processors are currently being
used for the primary process and backup process and swaps those processors. If
you specify the processor number of the current primary processor, no change
occurs.
DISK page 14-92 SCSI page 14-95
MON page 14-93 SUBSYS page 14-95
POOL page 14-94 TAPE page 14-96
PRIMARY [ / OUT file-spec / ] DISK $disk
[ , cpunumber ] [ , FORCED ]
[ , POOL $pool ] [ , SEL state ]
[ , SUB { ALL | MAGNETIC | VIRTUAL } ]