M2488 PRODUCT GUIDE TAPE UNIT SCSI COMMANDS
April 1997 CG00000-011503 REV. A 4-1394-3.30.3 TEST UNIT READ Y Sense Keys
One of the following sense keys may be returned if a CHECK CONDITION was indicated:
SENSE KEY CONDITION DESCRIPTION
1h RECOVERED ERROR Recovery was performed while writing buffered data before the
TEST UNIT READY occurred.
2h NOT READY Logical unit is not ready (tape is not inserted, or the drive is not
ready).
3h MEDIUM ERROR 1. Write of buffered data failed due to a defective tape.
2. An attempt was made to write 36-track data on 18-track format-
ted medium.
4h HARDWARE ERROR Write of buffered data failed due to a hardware failure.
5h ILLEGAL REQUEST 1. Reserved bit was found set in the CDB of the TEST UNIT
READY command.
2. Flag bit was set and link bit was not set.
6h UNIT ATTENTION Indicates the TEST UNIT READY command was not performed
due to one of the following:
1. The tape cartridge may have been changed.
2. The target has been reset.
3. The Mode parameters have been changed by another initiator.
4. The version of the microcode has been changed (microcode
downloaded).
5. A cartridge was loaded with a tape length that is too long or too
short.
Dh VOLUME OVERFLOW Write of buffered data prior to the TEST UNIT READY operation
failed because physical End-of-Tape has been reached.