9710 (StorageTek) Addendum for NonStop Servers
Addendum to the StorageTek™ 9710 for the Tandem Environment
The 5155/5159 Digital Linear Tape CRE and NonStop Kernel
9-54
CATALOG {ON OFF}
Requests the services of the DSM/Tape Catalog (which
might not be installed on the system). Specify OFF to use
the CLASS TAPECATALOG DEFINE template without
using DSM/Tape Catalog. Specify ON to use the
DSM/Tape Catalog.
COMPRESSION {ON OFF}
Overrides the system-wide default compression specification
on a job-by-job basis for any tape in a 5155/5159, 5150 or
5151 drive. (The 5194 tape drive is unaffected by this
attribute.) COMPRESSION can be set ON or OFF.
Notes:
• After executing a CLASS TAPECATALOG DEFINE, the
system returns to the system-wide default specification for the
next job.
• If the COMPRESSION attribute is not specified in the
DEFINE, the system uses the default compression specification
set by the MEDIACOM ALTER MEDIADEFS command.
• If no default specification was set using the ALTER
MEDIADEFS command, the default compression specification
for any tape on a 5155/5159, 5150 or 5151 drive is OFF.
• Applications specifying a CLASS TAPE DEFINE always use
the system-wide default specification for compression, because
there is no COMPRESSION attribute for a CLASS TAPE
DEFINE.