SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-007
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ALTER TAPE Command
OUT file-spec
directs all SCF output to the specified file.
TAPE $tape
is the name of the tape device.
LIKE object
identifies an existing object whose attribute values are copied to the object affected
by this command. The object name must currently exist in the system
configuration, and the object type must match that of the object affected by this
command. If you specify LIKE, any attribute values that you explicitly specify
override the attribute values of the LIKE object.
The LOCATION, SAC, and DEVICEID values are not copied from the LIKE object.
To assign values to these attributes, you must explicitly specify them.
attribute-spec
is one or more ALTER TAPE Attributes.
ALTER TAPE Attributes
[ , BACKUPCPU number ]
[ , COMPRESSION { ON | OFF } ]
[ , DENSITY { 1600 | 6250 } ]
[ , DEVICEID number ]
[ , HIGHPIN { ON | OFF } ]
[ , LOCATION (group,module,slot) ]
[ , LUN number ]
[ , MAXOPENS number ]
[ , PORTNAME number ]
[ , PRIMARYCPU number ]
[ , PROGRAM [[$vol.]subvol.]fileid ]
[ , RECSIZE number ]
[ , SAC { number | name } ]
[ , STARTSTATE { STARTED | STOPPED } ]
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.
COMPRESSION { ON | OFF }
(cartridge tapes only) specifies whether data compression is configured.
ON The tape process compresses data using Improved Data Recovery
Capability when writing to the cartridge tape (default).
OFF The tape process does not compress data when writing to the cartridge
tape.