DSM/Tape Catalog Operator Interface (MEDIACOM) Manual

MEDIACOM Commands
DSM/Tape Catalog Operator Interface (MEDIACOM) Manual—429828-010
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ALTER TAPEDRIVE Command (Super Group Only)
OFF
No approval is necessary.
RESET NLCHECK
changes the current setting for $tape to ON.
RESERVE { ON | OFF }
reserves the tape drive for parallel tape operations such as parallel backup:
ON
The tape drive is reserved for parallel tape operations.
OFF
The tape drive is not reserved for parallel tape operations. The default is OFF.
RESET RESERVE
changes the current setting for $tape to OFF.
Considerations

Configuration of tape drive
When updating the tape drive configuration, the NonStop Kernel tape server
process, $ZSVR, must have create access for $SYSTEM.SYSTEM (or the SYSnn
where ZSVRCONF is located), as well as read and write access to the
ZSVRCONF file.

BLP and NL settings after starting $ZSVR
Once the BLP and NL settings are configured, they need not be entered again.
They are stored in the SYSnn in a file called ZSVRCONF, so each time ZSERVER
is started, the old addresses are used automatically. The ZSVRCONF file stores
the NLCHECK, BLPCHECK, and possibly an LSM address for each tape drive
configured on the system.

BLPCHECK ON
When BLPCHECK is set to ON and a BLP request is made by an application, this
message displays on the tape console:
... REQUEST TO USE $tape WITH NO LABEL PROTECTION
Use ACCEPT TAPEMOUNT or REJECT TAPEMOUNT to respond to this request.

BLPCHECK and premounted labeled tapes
The setting of BLPCHECK affects the use of a premounted labeled tape on a tape
drive. If BLPCHECK is set to ON when a tape drive is opened for write access in
BLP mode, a premounted labeled tape is unloaded to protect it from accidental