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

attribute-spec
is one or more “ADD TAPE Attributes”.
ADD TAPE Attributes
[ , BACKUPCPU number ]
[ , COMPRESSION { ON | OFF } ]
[ , DENSITY { 1600 | 6250 } ]
[ , DEVICEID number ]
[ , HIGHPIN { ON | OFF } ]
[ , LOCATION ( group,module,slot ) ]
[ , LUN number ]
[ , MAXOPENS number ]
[ , PRIMARYCPU number ]
[ , PORTNAME number ]
[ , PROGRAM { [$vol.]subvol.]fileid } ]
[ , RECSIZE number ]
[ , SAC { number | name } ]
[ , STARTSTATE { STARTED | STOPPED } ]
BACKUPCPU number
is the processor in which the backup IOP starts. If you omit this attribute, the processor is
automatically chosen based on the physical location of the device.
COMPRESSION { ON | OFF }
(cartridge tapes only) specifies whether data compression is configured
The tape process compresses data using Improved Data Recovery Capability when writing to the cartridge
tape (default).
ON
The tape process does not compress data when writing to the cartridge tape.OFF
This setting can be overridden by the MEDIACOM ALTER TAPEDRIVE MEDIADEFS command.
See the discussion of date compression in the DSM/Tape Catalog User’s Guide.
DENSITY { 1600 | 6250 }
(5170 tape drives only) is the tape density in bpi. (Other tape drives use a standard density
which is displayed by the INFO TAPE command.) The default is 6250.
DEVICEID number
is the device ID of the tape drive.
This value must match either the SCSI ID of the tape drive (if SCSI-connected) or the device ID
of the tape drive (if Fibre Channel connected).
If the tape drive is connected to a PMF CRU, an IOMF CRU, or an SNDA, number is in the
range 0 through 5. The default is 5.
If the tape drive is connected to an F-SAC of an SNDA, number is 4 or 5.
HIGHPIN { ON | OFF }
specifies whether the IOP can run at a high PIN (ON, the default) or only at a low PIN (OFF).
LOCATION ( group, module, slot )
is the location of the adapter where the tape drive is connected. This attribute is required.
LUN number
is the logical unit number (LUN) used by the path of the tape volume in the range 0 through
31.
MAXOPENS number
is the maximum concurrent opens allowed for the device. number is in the range 1 through
64. The default is 4.
226 Storage Subsystem Commands