Fujitsu M2488, Руководство по эксплуатации продукта

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TAPE UNIT SCSI COMMANDS M2488 PRODUCT GUIDE
4-66 CG00000-011503 REV. A April 1997
4-3.14.3 READ 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. SILI and Fixed bits are both zero and the actual block length read
is different from the specified transfer length in the READ CDB.
2. Filemark encountered during the read operation.
1h RECOVERED ERROR 1. Recovery was performed when writing buffered data to tape.
2. Recovery was performed when reading data from tape.
3. Recovery was performed when transferring data to the initiator.
2h NOT READY Logical Unit was not ready (tape was not loaded or wasn’t ready).
3h MEDIUM ERROR 1. Synchronization of buffered write data prior to the read operation
failed due to defective tape.
2. Physical end-of-medium (PEOT) encountered during the read
operation.
3. Attempted to read a tape that has not been previously recorded
(i.e. the density ID has not been written).
4. An attempt was made to write 36-track data on 18-track format-
ted medium.
5. 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.
2. Read operation failed due to a hardware failure.
3. Transfer of Read data to initiator failed due to hardware failure.
5h ILLEGAL REQUEST 1. Reserved bit was found set in the CDB of the READ command.
2. The Fixed bit was set to one, but the current mode is variable (as
set by MODE SELECT or default power on condition).
3. The SILI and Fixed bits are both set to one.
4. The Flag bit was set but the Link bit was not set.
6h UNIT ATTENTION Indicates the READ 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.
8h BLANK CHECK 1. End-of-data (EOD) encountered during the read operation.
2. No data block or filemark was encountered on the medium for a
distance of 680 mm. The medium position following this condi-
tion is not defined.