Summary
Event viewer shows bad block "messages for the tape device (\Device\Tape0)."
Symptoms
Event ID 7 is generated in the System Event log when performing a media operation on a DLT drive. The Exact Error Message is:
The device, \Device\Tape0, has a bad block.
Resolution
Event ID 7 is generated when a tape device generates an error in response to a command. There are many issues that can cause this to happen, most of them related to:
- Firmware
- Driver
- Controller card
When such an error occurs, the device does send some information regarding the error encountered. This information can be found by examining the data block of the event itself.
Note:The bytes referenced above can be seen only by scrolling down within the data block.
The data is contained in bytes 3C, 3D, and 3E. Byte 3E is the sense key. Byte 3D is the Additional Sense Code (ASC). Byte 3C is the Additional Sense Code Qualifier (ASCQ). In the example above, the sense key (byte 3E) is 03, the ASC (byte 3D) is 0c, and the ASCQ (byte 3C) is 00. By using the table below, this error correlates to a write error. If the sense code is not listed below or for more information on any of these codes, please contact the hardware vendor. SCSI sense codes are not an official standard but many of these errors tend to be the same for many different types of devices.
Sense Key ASC ASCQ Description
----------- ------- -------- --------------
00 00 00 No additional sense code
No sense 00 01 Unexpected FM encountered
00 02 End of medium (EOM) encountered
00 03 SetMark encountered
00 04 Beginning of medium (BOM) encountered
00 05 EOD encountered
5D 00 Tape alert failure prediction threshold exceeded
5D FF False exception condition
01 00 17 Clean requested
Recovered 0A 00 Error log overflow
error 0A 80 Error log generated
37 00 Rounded parameter
3B 08 Repositioning error
44 C1 EEPROM copy 1 area bad
44 C2 EEPROM copy 2 area bad
47 00 SCSI parity error
48 00 IDE message received
51 00 Erase failure
53 01 Unload tape failure
5B 02 Log counter at maximum
80 02 Cleaning requested (use cleaning tape)
80 03 Soft error exceeds threshold
02 04 00 Unit not ready, cause nonreportable
Not ready 04 01 Unit not ready, calibration in process
04 02 Unit not ready, load command needed
04 03 Unit not ready, manual intervention needed
30 02 Incompatible format
30 03 Unit not ready, incompatible cleaning
media installed
3A 00 Media not present
3A 80 Media not present, VU cartridge missing
5A 01 Operator media removal request
03 00 00 Medium error
Medium error 04 02 Unit not ready, load command needed
0C 00 Write error (possible tape medium problem,
cleaning tape needed)
11 00 Unrecovered read error
11 08 Unrecovered read error, incomplete block read
14 00 Recorded entity not found (logical DLT block
not found)
15 02 Position error detected by read of medium
30 00 Cannot read medium
30 01 Unknown format
3B 00 Sequential positioning error
3B 08 Repositioning error
51 00 Erase failure
80 00 Calibration error (use cleaning tape)
80 01 Cleaning required (use cleaning tape)
81 00 Directory read error (use cleaning tape)
04 08 00 LUN communication failure
Hardware 08 01 LUN communication timeout failure
error 0C 80 Write SCSI FIFO CRC error
11 80 Read SCSI FIFO CRC error
11 81 Block port detected EDC error
11 82 Block port detected record CRC error
15 01 Random mechanical positioning error
21 01 Invalid element address
3B 08 Repositioning error
3B 0D Media destination element full
3B 0E Media source element empty
40 80 Diagnostic/POST failure, ROM EDC error
40 81 Diagnostic/POST failure, RAM failure
40 82 Diagnostic/POST failure, bad drive status
40 83 Diagnostic/POST failure, loader diagnostics failure
40 84 Diagnostic/POST failure, POST soft failure
44 00 Internal target failure
44 83 SCSI chip gross error/illegal command status
44 84 Unexpected/unexplained residue count in
transfer register
44 85 Immediate data transfer timeout
44 86 Insufficient CDB bytes
44 87 Disconnect/SDP sequence failed
44 88 Bus DMA transfer timeout
44 8A Over temperature condition
44 C1 EEPROM copy 1 area bad
44 C2 EEPROM copy 2 area bad
44 C3 Both EEPROM copy areas bad
47 00 SCSI parity error
48 00 IDE message received
51 00 Erase failure
53 00 Media load/eject failure
53 01 Unload tape failure
05 1A 00 Parameter list length error
Illegal 20 00 Illegal opcode
request 20 81 Illegal command while in recovery mode
21 01 Invalid element address (media changer)
24 00 Invalid CDB field
24 81 Invalid mode on write buffer
24 82 Media in drive
24 84 Insufficient resources
24 86 Invalid offset
24 87 Invalid size
24 89 Image data over limit
24 8B Image/personality is bad
24 8C Not immediate command
24 8D Bad drive/server image EDC
24 8E Invalid personality for code update (CUP)
24 8F Bad controller image EDC
25 00 Illegal LUN
26 00 Parameter list error, invalid field
26 01 Parameter list error, parameter not supplied
26 02 Parameter list error, parameter value invalid
30 00 Incompatible medium (cannot read medium)
39 00 Saving parameters not supported
3B 0D Media destination element full
3B 0E Media source element empty
3D 00 Invalid bits in ID message
53 02 Media removal prevented
82 00 Not allowed if not at BOT
06 28 00 Not ready to ready transition
Unit 29 00 Reset occurred
attention 2A 01 Mode parameters changed
2A 02 Log parameters changed
3F 01 Microcode has been changed
5B 01 Log threshold condition met
07 27 80
Data 27 82
protected
08 00 05 EOD encountered
Blank check 08 00 LUN communications failure
09 XX YY Code update event (where XX = drive revision code
Code update and YY = controller revision code)
0A 0A 00 Error log overflow
0A 80 Error log generated
0B 2F 00 Commands cleared by another initiator
Command 43 00 Message error
aborted 44 80 Unexpected selection interrupt
44 82 Command complete sequence failure
44 83 SCSI chip, gross error/illegal command status
44 84 Unexpected/unexplained residue count in
transfer register
44 87 Disconnect sequence failure
44 89 Command cleared from queue without other
45 00 Select/reselect failure
47 00 SCSI parity error
48 00 IDE message error
49 00 Invalid message error
4B 00 Data phase error
4E 00 Overlapped commands attempted
83 00 Can not read/write data transfer
Acknowledgments: Quantum