SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

The location, SAC, and device ID values are not copied from the LIKE object. To assign values
to these attributes, you must explicitly specify them.
attribute-spec
is one or more “ALTER SCSI Attributes”.
ALTER SCSI Attributes
[ , BACKUPCPU number ]
[ , BACKUPLOCATION ( group, module, slot ) ]
[ , BACKUPPORTNAME number ]
[ , BACKUPSAC number | name ]
[ , HIGHPIN { ON | OFF } ]
[ , LUN number ]
[ , MAXOPENS number ]
[ , NUMIO number ]
[ , PRIMARYCPU number ]
[ , PRIMARYLOCATION ( group,module,slot ) ]
[ , PRIMARYPORTNAME number ]
[ , PRIMARYSAC number | name ]
[ , PROGRAM [[$vol.]subvol.]fileid ]
[ , RECSIZE number ]
[ , SCSIID number ]
[ , STARTSTATE { STARTED | STOPPED } ]
[ , STRUCTAREASIZE number ]
[ , TRACEBUFLEN number ]
[ , TRACELEVEL number ]
BACKUPCPU number
is the processor in which the backup IOP starts. The process must be in the STOPPED state or
not running for you to alter this attribute.
BACKUPLOCATION ( group,module,slot )
is the location of the adapter that controls the backup path to the device. This attribute has no
default value. If this attribute is not specified, the device is not accessible through its backup
path.
BACKUPPORTNAME number
is the Fibre Channel port name used by the backup path to the Open SCSI device. The number
should be entered as a 16-character hexadecimal number, without a leading %H.
BACKUPSAC { number | name }
is the SAC that controls the backup path to the device
is the SAC subdevice number on the adapter. If you specify BACKUPSAC in number format,
you must also specify BACKUPLOCATION.
number
is the full name of the SAC location. For example:SNDA.SAC-1.GRP-21.MOD-1.SLOT-53name
HIGHPIN { ON | OFF }
specifies whether the IOP can run at a high PIN (ON, the default) or only at a low PIN (OFF).
LUN number
is the logical unit number (LUN) of a device connected to the Open SCSI device. For devices
connected to a SCSI controller number is in the range 0 through 7. For Fibre Channel devices
number is in the range 0 through 32767.
MAXOPENS number
is the maximum concurrent opens allowed for the device. number is in the range 1 through
64. The default is 4.
238 Storage Subsystem Commands