Quantum LTO 4, Руководство пользователя

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SCSI Commands: 40BREQUEST SENSE Page 172
Field Bytes Bits Description
C/D 15 6 0 = The first error was encountered in the Data-Out Phase.
1 = The first error was encountered in the Command Descriptor
Block.
BPV 15 3 1 = The Bit Pointer field indicates the bit field in error.
Bit Pointer 15 0-2 If BPV is set, this field points to the most significant bit of the field in
error.
When a Log Exception is generated, this field indicates the affected
page that caused the Log Exception.
Field
Pointer 16-17 If BPV is set, this field points to the most significant byte of the field
in error.
When a Log Exception is generated, bytes 16 and 17 indicate the
MSB and LSB of the Log Parameter code that caused the Log
Exception. Byte 15 indicates the affected page that caused the
Log Exception.
For all other errors, this field contains message codes as defined in
Message Codes, Appendix A.
CLN 21 3 0 = The drive does not need cleaning.
1 = The drive needs cleaning.
Reserved All reserved bits are 0.
3.28.3.2 Sense Key Values
The following table shows the meaning of the Sense Key values. For expanded
information, see Additional Sense Codes and Code Qualifiers, below.
Key Message Definition
00h No Sense The Check Condition occurred in conjunction with detection of FM, EOM,
or ILI, or status was not available.
01h Recovered
Error The LOG SENSE counter reached its maximum value and the RLEC bit is
set.
02h Not Ready The drive is not ready to accept tape access commands. Operator
intervention may be required to correct this condition, or the drive may be
coming ready.
03h Medium Error The command terminated with a non-recoverable error that was probably
caused by a flaw in the medium or an error in the recorded data.
04h Hardware Error The drive detected a non-recoverable hardware failure (parity, etc.) while
performing the command. Until the cartridge is ejected or a reset is
received, the drive continues to return this sense key to any tape motion
command.
05h Illegal Request The CDB or command parameters contained an illegal parameter.
06h Unit Attention One of the following actions occurred: the cartridge was changed; the
drive was reset; the operational mode was changed; a Log Exception
occurred; or the firmware was changed.
07h Data Protect The cartridge is write-protected; the operation was not performed.
08h Blank Check A no-data condition was encountered on the tape, or the wrong data
format was encountered on tape.
09h Vendor Specific Vendor specific conditions.
0Bh Aborted
Command The drive aborted the command. This key is returned if a bus parity error
is detected. The Initiator may be able to recover by trying the command
again.
ODh Volume
Overflow The drive reached the physical EOM, and write data remains in the buffer.
0Eh MISCOMPARE The source data did not match the tape data during a VERIFY command.