User's Guide

Chapter 3 Emulated DLT7000 SCSI Commands
Load Unload (1Bh)
Quantum DX-Series Software Interface Guide 145
Load Load. When a cartridge is inserted, the tape
medium is automatically loaded and positioned
by the drive at Beginning of Medium (BOM).
Logically, the drive is positioned at the
beginning of Partition 0.
If the Load bit is set to 1, and the medium is
already loaded, no action is taken. A “good”
status is returned. If the medium was unloaded
but the cartridge was not removed, a Load
command causes the tape to be loaded to
Beginning of Partition (BOP) again and made
ready.
If the Load bit is set to 0, and the medium is
loaded, the drive writes any buffered data and
filemarks to the tape and then rewinds the tape
to BOM and unloads the medium back into the
cartridge. The green Operate Handle indicator
on the tape drive’s faceplate illuminates and the
cartridge can be removed from the tape drive. If
the medium is already unloaded, no action is
taken. A “good” status is returned.
EOT End of Tape. This bit is ignored by the tape drive
unless both the EOT and Load bits are set to 1,
then the drive returns CHECK CONDITION,
ILLEGAL REQUEST data.
Servo Firmware
Checksum
Servo Firmware checksums are given as binary
numbers and are for positive firmware and
EEPROM identification.
Field Name Description