Fujitsu M2488, Руководство по эксплуатации продукта

Страница: 164 / 528

TAPE UNIT SCSI COMMANDS M2488 PRODUCT GUIDE
4-82 CG00000-011503 REV. A April 1997
4-3.18.3 READ REVERSE Sense Keys
One of the following sense keys may be returned if a CHECK CONDITION was indicated:
SENSE KEY CONDITION DESCRIPTION
0h NO SENSE 1. Filemark encountered.
2. BOT encountered.
1h RECOVERED ERROR 1. Recovery was performed when writing buffered data before the
READ REVERSE command was executed.
2. Recovery was performed when reading data from tape.
3h MEDIUM ERROR 1. Write of buffered data failed due to a defective tape. (Synchro-
nize before READ REVERSE attempted.)
2. Error occurred when attempting to space backward over block
to be read.
3. An attempt was made to write 36-track data on 18-track format-
ted medium.
4. The tape length in the cartridge is too long or too short.
4h
HARDWARE ERROR 1.Write of buffered data failed due to a hardware failure. (Syn-
chronize before READ REVERSE attempted.)
2. Error occurred when attempting to space backward over block
to be read.
5h ILLEGAL REQUEST 1. Reserved bit was found set in the CDB of the READ
REVERSE command.
2. SILI bit set to 1 and Fixed bit set to 1.
3. Fixed bit is 1 but variable mode was indicated by the most
recent MODE SELECT
4. The Flag bit was set but the Link bit was not set.
5. Bytes in block could not be transferred in reverse order.
6h UNIT ATTENTION Indicates the READ REVERSE 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.
Bh ABORTED COMMAND READ REVERSE command was aborted. the READ REVERSE
command can be reissued.
Dh VOLUME OVERFLOW Write of buffered data prior to the Read Reverse operation failed
because physical End-of-Tape has been reached.