Quantum DLT 2000, Руководство по эксплуатации продукта

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DLT2000 SCSI Interface
8-26 DLT2000/DLT2700 Cartridge Tape Subsystem
EEROM parameters ENALDRAUTOLD and DISLDRAUTOLDMC can be modified
to enable/disable the sequential loading feature (Table 8-3).
A media loader does not affect the device's processing of the LOAD flavor of the
LOAD-UNLOAD command.
The command specific bits are used as follows:
•
Immed - If this bit is set, status is returned as soon as the operation is started.
Otherwise, the status is returned after the operation has completed.
•
Re-Ten - Re-tension operations are not needed on the DLT2000, so this bit is
ignored (that is, good status, if the bit is set).
•
Load - When a cartridge is inserted, the media is automatically loaded and
positioned by the drive at BOM. Logically, the drive will be positioned at the
beginning of Partition 0.
If the Load bit is set, and the media is already loaded, no action is taken. If the
media was unloaded but the cartridge was not removed, a Load will cause it to be
loaded to BOP again and made ready.
If the Load bit is zero and media is loaded, the drive writes any buffered data and
filemarks to the tape and rewinds the tape to BOM and unloads the media into the
DLT2000 cartridge. The green Operate Handle light turns on and the cartridge can
be removed from the drive. If the media is already unloaded, no action is taken.
•
EOT - This bit is ignored by the DLT2000, unless both the EOT and Load bits are
both set, then the drive returns CHECK CONDITION, ILLEGAL REQUEST.