![background image](http://html1.mh-extra.com/html/quantum/dlttape-dlt-4000/dlttape-dlt-4000_product-manual_3688580129.webp)
SCSI Commands
Quantum DLT 4000 Tape Drive
5-29
LOAD UNLOAD Command (1Bh) (continued)
Table 5–14 LOAD UNLOAD Command Descriptor Block - Field Descriptions
Field Name
Description
Immed
Immediate. If this bit is set to 1, status is returned as soon as the operation is
started. If set to 0, status is returned after the operation has completed.
Re-Ten
Re-tension. Re-tension operations are not needed on the tape drive. This bit is
ignored (i.e., “good” status, if bit is set to 1).
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. 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.
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.
Summary of Contents for DLTtape DLT 4000
Page 1: ...DLT 4000 Tape Drive Product Manual November 10 2003 81 60043 04 ...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued ...
Page 6: ......
Page 24: ...About This Manual Quantum DLT 4000 Tape Drive xxiv ...
Page 62: ...Hardware Implementation 2 28 Quantum DLT 4000 Tape Drive ...
Page 100: ...Messages 4 12 Quantum DLT 4000 Tape Drive ...
Page 264: ...SCSI Commands 5 164 Quantum DLT 4000 Tape Drive ...
Page 274: ...Appendix B EEPROM Resident Bugcheck and Event Logs B 6 Quantum DLT 4000 Tape System ...
Page 280: ...Appendix C Updating the Firmware C 6 Quantum DLT 4000 Tape Drive ...
Page 298: ...Index Index 6 Quantum DLT4000 Tape Drive ...
Page 299: ......