Key Code Qualifier: Difference between revisions

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Latest revision as of 22:16, 9 December 2024

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{{Short description|Type of SCSI error code}}

'''Key Code Qualifier''' is a computer term used to describe an error-code returned by a [[SCSI]] device.

{{redirect|KCQ|the radio station in Saginaw, Michigan|WKCQ}}

'''Key Code Qualifier''' is an error-code returned by a [[SCSI]] device.

When a SCSI [[SCSI target|target]] device returns a [[SCSI check condition|check condition]] in response to a [[SCSI command|command]], the [[SCSI initiator|initiator]] usually then issues a [[SCSI Request Sense Command|SCSI Request Sense command]]. This process is part of a SCSI protocol called [[SCSI contingent allegiance condition|Contingent Allegiance Condition]]. The target will respond to the Request Sense command with a set of SCSI sense data which includes three fields giving increasing levels of detail about the error:

*K - sense key - 4 bits

When a SCSI [[SCSI target|target]] device returns a check condition in response to a [[SCSI command|command]], the [[SCSI initiator|initiator]] usually then issues a [[SCSI Request Sense Command|SCSI Request Sense command]]. This process is part of a SCSI protocol called Contingent Allegiance Condition. The target will respond to the Request Sense command with a set of [[SCSI Request Sense Command|SCSI sense data]] which includes three fields giving increasing levels of detail about the error:

*C - additional sense code (ASC) - 8 bits

*QK - additional sense codekey qualifier- 4 bits, (ASCQ)byte -2 8of bitsFixed sense data format)

*C - additional sense code (ASC) - 8 bits, (byte 12 of Fixed sense data format)

The initiator can take action based on just the K field which indicates if the error is minor or major. However all three fields are usually logically combined into a 20 bit field called Key Code Qualifier or KCQ. The specification for the target device will define the list of possible KCQ values. In practice there are many KCQ values which are common between different SCSI device types and different SCSI device vendors.

*Q - additional sense code qualifier (ASCQ) - 8 bits, (byte 13 of Fixed sense data format)

The initiator can take action based on just the K field which indicates if the error is minor or major. However all three fields are usually logically combined into a 20 bit field called Key Code Qualifier or KCQ. The specification for the target device will define the list of possible KCQ values. In practice there are many KCQ values which are common between different SCSI device types and different SCSI device vendors. Common values are listed below, you should consult your hardware specific documentation as well.

==List of common SCSI KCQs==

{|class="wikitable"

<pre>

!Category !! Key !! ASC !! ASCQ !! Error Condition

|-

|rowspan="2" valign="top"|No Sense || 0 || 00 || 00 || No error

|-

Sense 0 5D 00 No sense - PFA threshold reached

|0||5D||00||No sense - PFA threshold reached

|-

Soft 1 01 00 Recovered Write error - no index

|rowspan="36" valign="top"|Soft Error ||1 02 ||01||00 ||Recovered noWrite seekerror - no completion index

|-

1 03 00 Recovered Write error - write fault

|1||02||00||Recovered no seek completion

1 09 00 Track following error

|-

1 0B 01 Temperature warning

|1 0C 01 ||03||00||Recovered Write error with auto-realloc -write reallocated fault

|-

1 0C 03 Recovered Write error - recommend reassign

|1||09||00||Track following error

1 12 01 Recovered data without ECC using prev logical block ID

|-

1 12 02 Recovered data with ECC using prev logical block ID

|1||0B||01||Temperature warning

1 14 01 Recovered Record Not Found

|-

1 16 00 Recovered Write error - Data Sync Mark Error

|1 16 ||0C||01 ||Recovered Write error - Datawith Sync Errorauto-realloc - data rewritten reallocated

|-

1 16 02 Recovered Write error - Data Sync Error - recommend rewrite

|1 16 ||0C||03 ||Recovered Write error - Datarecommend Sync Error - data auto-reallocated reassign

|-

1 16 04 Recovered Write error - Data Sync Error - recommend reassignment

|1 17 00 ||12||01||Recovered data withwithout noECC errorusing correctionprev applied logical block ID

|-

1 17 01 Recovered Read error - with retries

|1 17 ||12||02 ||Recovered data with ECC using positiveprev logical block offset ID

|-

1 17 03 Recovered data using negative offset

|1 17 05 ||14||01||Recovered dataRecord usingNot previous logical block ID Found

|-

1 17 06 Recovered Read error - without ECC, auto reallocated

|1 17 07 ||16||00||Recovered ReadWrite error - withoutData ECC,Sync recommendMark reassign Error

|-

1 17 08 Recovered Read error - without ECC, recommend rewrite

|1 17 09 ||16||01||Recovered ReadWrite error - withoutData ECC,Sync Error - data rewritten

|-

1 18 00 Recovered Read error - with ECC

|1 18 01 ||16||02||Recovered dataWrite witherror ECC- andData retries Sync Error - recommend rewrite

|-

1 18 02 Recovered Read error - with ECC, auto reallocated

|1 18 05 ||16||03||Recovered ReadWrite error - withData ECC,Sync recommendError reassign - data auto-reallocated

|-

1 18 06 Recovered data using ECC and offsets

|1 18 07 ||16||04||Recovered ReadWrite error - withData ECC,Sync dataError rewritten - recommend reassignment

|-

1 1C 00 Defect List not found

|1||17||00||Recovered data with no error correction applied

1 1C 01 Primary defect list not found

|-

1 1C 02 Grown defect list not found

|1||17||01||Recovered Read error - with retries

1 1F 00 Partial defect list transferred

|-

1 44 00 Internal target failure

|1||17||02||Recovered data using positive offset

1 5D 00 PFA threshold reached

|-

1 5D FF PFA test warning

|1||17||03||Recovered data using negative offset

1 81 00 Internal logic failure

|-

|1||17||05||Recovered data using previous logical block ID

Not 2 04 00 Not Ready - start motor failed

|-

Ready 2 04 01 Not Ready - becoming ready

|1||17||06||Recovered Read error - without ECC, auto reallocated

2 04 02 Not Ready - need initialise command (start unit)

|-

2 04 03 Not Ready - manual intervention required

|1||17||07||Recovered Read error - without ECC, recommend reassign

2 04 04 Not Ready - format in progress

|-

2 04 09 Not Ready - self-test in progress

|1||17||08||Recovered Read error - without ECC, recommend rewrite

2 31 00 Not Ready - medium format corrupted

|-

2 31 01 Not Ready - format command failed

|1||17||09||Recovered Read error - without ECC, data rewritten

2 35 02 Not Ready - enclosure services unavailable

|-

2 40 80 Diagnostic Failure - bring-up fail or degraded mode

|1||18||00||Recovered Read error - with ECC

2 40 81 Diagnostic Failure - Hard Disk Controller

|-

2 40 85 Diagnostic Failure - RAM microcode not loaded

|1||18||01||Recovered data with ECC and retries

2 40 90 Diagnostic Failure - RRO Calibration

|-

2 40 91 Diagnostic Failure - Channel Calibration

|1||18||02||Recovered Read error - with ECC, auto reallocated

2 40 92 Diagnostic Failure - Head Load

|-

2 40 93 Diagnostic Failure - Write AE

|1||18||05||Recovered Read error - with ECC, recommend reassign

2 40 94 Diagnostic Failure - 12V over current

|-

2 40 95 Diagnostic Failure - Other spindle failure

|1||18||06||Recovered data using ECC and offsets

2 40 B0 Diagnostic Failure - self-reset

|-

2 4C 00 Diagnostic Failure - config not loaded

|1||18||07||Recovered Read error - with ECC, data rewritten

|-

Medium 3 03 00 Medium Error - write fault

|1||1C||00||Defect List not found

Error 3 0C FF Medium Error - write recovery time limit exceeded

|-

3 10 00 Medium Error - ID CRC error

|1||1C||01||Primary defect list not found

3 11 00 Medium Error - unrecovered read error

|-

3 11 01 Medium Error - read retries exhausted

|1||1C||02||Grown defect list not found

3 11 02 Medium Error - error too long to correct

|-

3 11 04 Medium Error - unrecovered read error - auto re-alloc failed

|1||1F||00||Partial defect list transferred

3 11 0B Medium Error - unrecovered read error - recommend reassign

|-

3 11 FF Medium Error - read recovery time limit exceeded

|1||44||00||Internal target failure

3 14 01 Medium Error - record not found

|-

3 16 00 Medium Error - Data Sync Mark error

|1||5D||00||PFA threshold reached

3 16 04 Medium Error - Data Sync Error - recommend reassign

|-

3 19 00 Medium Error - defect list error

|rowspan="15" valign="top"|Not Ready||2||04||00||Not Ready - Cause not reportable.

3 19 01 Medium Error - defect list not available

|-

3 19 02 Medium Error - defect list error in primary list

|2||04||01||Not Ready - becoming ready

3 19 03 Medium Error - defect list error in grown list

|-

3 19 0E Medium Error - fewer than 50% defect list copies

|2||04||02||Not Ready - need initialise command (start unit)

3 31 00 Medium Error - medium format corrupted

|-

3 31 01 Medium Error - format command failed

|2||04||03||Not Ready - manual intervention required

3 80 00 Medium Error - data auto-reallocated

|-

|2||04||04||Not Ready - format in progress

Hard 4 01 00 Hardware Error - no index or sector

|-

Error 4 02 00 Hardware Error - no seek complete

|2||04||09||Not Ready - self-test in progress

4 03 00 Hardware Error - write fault

|-

4 09 00 Hardware Error - track following error

|2||31||00||Not Ready - medium format corrupted

4 11 00 Hardware Error - unrecovered read error in reserved area

|-

4 16 00 Hardware Error - Data Sync Mark error in reserved area

|2||31||01||Not Ready - format command failed

4 19 00 Hardware Error - defect list error

|-

4 19 02 Hardware Error - defect list error in Primary List

|2||35||02||Not Ready - enclosure services unavailable

4 19 03 Hardware Error - defect list error in Grown List

|-

4 31 00 Hardware Error - reassign failed

|2||3A||00||Not Ready - medium not present

4 32 00 Hardware Error - no defect spare available

|-

4 35 01 Hardware Error - unsupported enclosure function

|2||3A||01||Not Ready - medium not present - tray closed

4 35 02 Hardware Error - enclosure services unavailable

|-

4 35 03 Hardware Error - enclosure services transfer failure

|2||3A||02||Not Ready - medium not present - tray open

4 35 04 Hardware Error - enclosure services refused

|-

4 3E 03 Hardware Error - self-test failed

|2||3A||03||Not Ready - medium not present - loadable

4 3E 04 Hardware Error - unable to update self-test

|-

4 40 80 Hardware Error - Degrade Mode. Diagnostic Fail.

|2||3A||04||Not Ready - medium not present - medium auxiliary memory accessible

4 40 81 Hardware Error - Degrade Mode. H/W Error

|-

4 40 85 Hardware Error - Degrade Mode. RAM microcode not loaded.

|2||4C||00||Diagnostic Failure - config not loaded

4 40 90 Hardware Error - seek test failure

|-

4 40 A0 Hardware Error - read/write test failure

|rowspan="18" valign="top"|Medium Error||3||02||00||Medium Error - No Seek Complete

4 40 B0 Hardware Error - device self-reset

|-

4 40 D0 Hardware Error - component mismatch

4 44 |3||03||00 Hardware||Medium Error - internalwrite target failure fault

|-

4 81 00 Hardware Error - internal logic error

4 82 |3||10||00 Hardware||Medium Error - commandID timeout CRC error

|-

Illegal 5 1A |3||11||00 Illegal||Medium RequestError - parmunrecovered list lengthread error

|-

Request 5 20 00 Illegal Request - invalid/unsupported command code

|3||11||01||Medium Error - read retries exhausted

5 21 00 Illegal Request - LBA out of range

|-

5 24 00 Illegal Request - invalid field in CDB

|3||11||02||Medium Error - error too long to correct

5 25 00 Illegal Request - invalid LUN

|-

5 26 00 Illegal Request - invalid fields in parm list

|3||11||04||Medium Error - unrecovered read error - auto re-alloc failed

5 26 01 Illegal Request - parameter not supported

|-

5 26 02 Illegal Request - invalid parm value

|3||11||0B||Medium Error - unrecovered read error - recommend reassign

5 26 03 Illegal Request - invalid field parameter - threshold parameter

|-

5 26 04 Illegal Request - invalid release of persistent reservation

|3||14||01||Medium Error - record not found

5 26 97 Illegal Request - invalid field parameter - TMS firmware tag

|-

5 26 98 Illegal Request - invalid field parameter - check sum

|3||16||00||Medium Error - Data Sync Mark error

5 26 99 Illegal Request - invalid field parameter - firmware tag

|-

5 2C 00 Illegal Request - command sequence error

|3||16||04||Medium Error - Data Sync Error - recommend reassign

5 35 01 Illegal Request - unsupported enclosure function

|-

5 49 00 Illegal Request - invalid message

|3||19||00||Medium Error - defect list error

5 55 00 Illegal Request - system resource failure

|-

5 55 01 Illegal Request - system buffer full

|3||19||01||Medium Error - defect list not available

5 55 04 Illegal Request - Insufficient Registration Resources

|-

|3||19||02||Medium Error - defect list error in primary list

Unit 6 28 00 Unit Attention - not-ready to ready transition (format complete)

|-

Attn. 6 29 00 Unit Attention - POR or device reset occurred

|3||19||03||Medium Error - defect list error in grown list

6 29 01 Unit Attention - POR occurred

|-

6 29 02 Unit Attention - SCSI bus reset occurred

|3||19||0E||Medium Error - fewer than 50% defect list copies

6 29 03 Unit Attention - TARGET RESET occurred

|-

6 29 04 Unit Attention - self-initiated-reset occurred

|3||31||00||Medium Error - medium format corrupted

6 29 05 Unit Attention - transceiver mode change to SE

|-

6 29 06 Unit Attention - transceiver mode change to LVD

|3||31||01||Medium Error - format command failed

6 2A 00 Unit Attention - parameters changed

|-

6 2A 01 Unit Attention - mode parameters changed

|rowspan="23" valign="top"|Hardware Error||4||01||00||Hardware Error - no index or sector

6 2A 02 Unit Attention - log select parms changed

|-

6 2A 03 Unit Attention - Reservations pre-empted

|4||02||00||Hardware Error - no seek complete

6 2A 04 Unit Attention - Reservations released

|-

6 2A 05 Unit Attention - Registrations pre-empted

|4||03||00||Hardware Error - write fault

6 2F 00 Unit Attention - commands cleared by another initiator

|-

6 3F 00 Unit Attention - target operating conditions have changed

|4||09||00||Hardware Error - track following error

6 3F 01 Unit Attention - microcode changed

|-

6 3F 02 Unit Attention - changed operating definition

|4||11||00||Hardware Error - unrecovered read error in reserved area

6 3F 03 Unit Attention - inquiry parameters changed

|-

6 3F 05 Unit Attention - device identifier changed

|4||15||01||Hardware Error - Mechanical positioning error

6 3F 90 Unit Attention - invalid APM parameters

|-

6 3F 91 Unit Attention - world-wide name mismatch

|4||16||00||Hardware Error - Data Sync Mark error in reserved area

6 5D 00 Unit Attention - PFA threshold reached

|-

6 5D FF Unit Attention - PFA threshold exceeded

|4||19||00||Hardware Error - defect list error

|-

Write 7 27 00 Write Protect - command not allowed

|4||19||02||Hardware Error - defect list error in Primary List

Prot.

|-

Abrtd B 00 00 Aborted Command - no additional sense code

|4||19||03||Hardware Error - defect list error in Grown List

Cmnd B 1B 00 Aborted Command - sync data transfer error (extra ACK)

|-

B 25 00 Aborted Command - unsupported LUN

|4||32||00||Hardware Error - no defect spare available

B 3F 0F Aborted Command - echo buffer overwritten

|-

B 43 00 Aborted Command - message reject error

B 44 |4||35||00 Aborted||Hardware CommandError - internalenclosure targetservices failure

|-

B 45 00 Aborted Command - Selection/Reselection failure

|4||35||01||Hardware Error - unsupported enclosure function

B 47 00 Aborted Command - SCSI parity error

|-

B 48 00 Aborted Command - initiator-detected error message received

|4||35||02||Hardware Error - enclosure services unavailable

B 49 00 Aborted Command - inappropriate/illegal message

|-

B 4B 00 Aborted Command - data phase error

|4||35||03||Hardware Error - enclosure services transfer failure

B 4E 00 Aborted Command - overlapped commands attempted

|-

B 4F 00 Aborted Command - due to loop initialisation

|4||35||04||Hardware Error - enclosure services refused

|-

Other E 1D 00 Miscompare - during verify byte check operation

|4||35||05||Hardware Error - enclosure services checksum error

x 03 86 Write Fault Data Corruption

|-

x 05 00 Illegal request

|4||3E||00||Hardware Error - logical unit has not self configured yet

x 06 00 Unit attention

|-

x 07 00 Data protect

|4||3E||01||Hardware Error - logical unit failed

x 08 00 LUN communication failure

|-

x 08 01 LUN communication timeout

|4||3E||02||Hardware Error - timeout on logical unit

x 08 02 LUN communication parity error

|-

x 09 00 vendor specific sense key

|4||3E||03||Hardware Error - self-test failed

x 09 01 servo fault

|-

x 09 04 head select fault

|4||3E||04||Hardware Error - unable to update self-test log

x 0A 00 error log overflow

|-

x 0B 00 aborted command

|4||44||00||Hardware Error - internal target failure

x 0C 00 write error

|-

x 0C 02 write error - auto-realloc failed

|rowspan="19" valign="top"|Illegal Request||5||1A||00||Illegal Request - parm list length error

x 0E 00 data miscompare

|-

x 12 00 address mark not founf for ID field

|5||20||00||Illegal Request - invalid/unsupported command code

x 14 00 logical block not found

|-

x 15 00 random positioning error

|5||21||00||Illegal Request - LBA out of range

x 15 01 mechanical positioning error

|-

x 15 02 positioning error detected by read of medium

|5||24||00||Illegal Request - invalid field in CDB (Command Descriptor Block)

x 27 00 write protected

|-

x 29 00 POR or bus reset occurred

|5||25||00||Illegal Request - invalid LUN

x 31 01 format failed

|-

x 31 91 format corrupted

|5||26||00||Illegal Request - invalid fields in parm list

x 32 01 defect list update error

|-

x 32 02 no spares available

|5||26||01||Illegal Request - parameter not supported

x 35 01 unspecified enclosure services failure

|-

x 37 00 parameter rounded

|5||26||02||Illegal Request - invalid parm value

x 3D 00 invalid bits in identify message

|-

x 3E 00 LUN not self-configured yet

|5||26||03||Illegal Request - invalid field parameter - threshold parameter

x 40 01 DRAM parity error

|-

x 40 02 DRAM parity error

|5||26||04||Illegal Request - invalid release of persistent reservation

x 42 00 power-on or self-test failure

|-

x 4C 00 LUN failed self-configuration

|5||2C||00||Illegal Request - command sequence error

x 5C 00 RPL status change

|-

x 5C 01 spindles synchronised

|5||35||01||Illegal Request - unsupported enclosure function

x 5C 02 spindles not synchronised

|-

x 65 00 voltage fault

|5||49||00||Illegal Request - invalid message

x 80 00 general firmware error

|-

</pre>

|5||53||00||Illegal Request - media load or eject failed

|-

|5||53||01||Illegal Request - unload tape failure

|-

|5||53||02||Illegal Request - medium removal prevented

|-

|5||55||00||Illegal Request - system resource failure

|-

|5||55||01||Illegal Request - system buffer full

|-

|5||55||04||Illegal Request - Insufficient Registration Resources

|-

|rowspan="43" valign="top"|Unit Attention||6||28||00||Unit Attention - not-ready to ready transition (format complete)

|-

|6||29||00||Unit Attention - POR or device reset occurred

|-

|6||29||01||Unit Attention - POR occurred

|-

|6||29||02||Unit Attention - SCSI bus reset occurred

|-

|6||29||03||Unit Attention - TARGET RESET occurred

|-

|6||29||04||Unit Attention - self-initiated-reset occurred

|-

|6||29||05||Unit Attention - transceiver mode change to SE

|-

|6||29||06||Unit Attention - transceiver mode change to LVD

|-

|6||2A||00||Unit Attention - parameters changed

|-

|6||2A||01||Unit Attention - mode parameters changed

|-

|6||2A||02||Unit Attention - log select parms changed

|-

|6||2A||03||Unit Attention - Reservations pre-empted

|-

|6||2A||04||Unit Attention - Reservations released

|-

|6||2A||05||Unit Attention - Registrations pre-empted

|-

|6||2F||00||Unit Attention - commands cleared by another initiator

|-

|6||3F||00||Unit Attention - target operating conditions have changed

|-

|6||3F||01||Unit Attention - microcode changed

|-

|6||3F||02||Unit Attention - changed operating definition

|-

|6||3F||03||Unit Attention - inquiry parameters changed

|-

|6||3F||04||Unit Attention - component device attached

|-

|6||3F||05||Unit Attention - device identifier changed

|-

|6||3F||06||Unit Attention - redundancy group created or modified

|-

|6||3F||07||Unit Attention - redundancy group deleted

|-

|6||3F||08||Unit Attention - spare created or modified

|-

|6||3F||09||Unit Attention - spare deleted

|-

|6||3F||0A||Unit Attention - volume set created or modified

|-

|6||3F||0B||Unit Attention - volume set deleted

|-

|6||3F||0C||Unit Attention - volume set deassigned

|-

|6||3F||0D||Unit Attention - volume set reassigned

|-

|6||3F||0E||Unit Attention - reported LUNs data has changed

|-

|6||3F||0F||Unit Attention - echo buffer overwritten

|-

|6||3F||10||Unit Attention - medium loadable

|-

|6||3F||11||Unit Attention - medium auxiliary memory accessible

|-

|6||3F||12||Unit Attention - iSCSI IP address added

|-

|6||3F||13||Unit Attention - iSCSI IP address removed

|-

|6||3F||14||Unit Attention - iSCSI IP address changed

|-

|6||3F||15||Unit Attention - inspect referrals sense descriptors

|-

|6||3F||16||Unit Attention - microcode has been changed without reset

|-

|6||3F||17||Unit Attention - zone transition to full

|-

|6||3F||18||Unit Attention - bind completed

|-

|6||3F||19||Unit Attention - bind redirected

|-

|6||3F||1A||Unit Attention - subsidiary binding changed

|-

|6||5D||00||Unit Attention - PFA threshold reached

|-

| rowspan="2" |Data Protect

|7

|20

|02

|Access Denied - No Access Rights

|-

|7||27||00||Write Protect - command not allowed

|-

|rowspan="14" valign="top"|Aborted Command||B||00||00||Aborted Command - no additional sense code

|-

|B||1B||00||Aborted Command - sync data transfer error (extra ACK)

|-

|B||25||00||Aborted Command - unsupported LUN

|-

|B||3F||0F||Aborted Command - echo buffer overwritten

|-

|B||43||00||Aborted Command - message reject error

|-

|B||44||00||Aborted Command - internal target failure

|-

|B||45||00||Aborted Command - Selection/Reselection failure

|-

|B||47||00||Aborted Command - SCSI parity error

|-

|B||48||00||Aborted Command - initiator-detected error message received

|-

|B||49||00||Aborted Command - inappropriate/illegal message

|-

|B||55||03||Aborted Command - insufficient resources

|-

|B||4B||00||Aborted Command - data phase error

|-

|B||4E||00||Aborted Command - overlapped commands attempted

|-

|B||4F||00||Aborted Command - due to loop initialisation

|-

|rowspan="40" valign="top"|Other||E||1D||00||Miscompare - during verify byte check operation

|-

|x||05||00||Illegal request

|-

|x||06||00||Unit attention

|-

|x||07||00||Data protect

|-

|x||08||00||LUN communication failure

|-

|x||08||01||LUN communication timeout

|-

|x||08||02||LUN communication parity error

|-

|x||08||03||LUN communication CRC error

|-

|x||09||00||vendor specific sense key

|-

|x||09||01||servo fault

|-

|x||09||04||head select fault

|-

|x||0A||00||error log overflow

|-

|x||0B||00||aborted command

|-

|x||0C||00||write error

|-

|x||0C||02||write error - auto-realloc failed

|-

|x||0E||00||data miscompare

|-

|x||12||00||address mark not found for ID field

|-

|x||14||00||logical block not found

|-

|x||15||00||random positioning error

|-

|x||15||01||mechanical positioning error

|-

|x||15||02||positioning error detected by read of medium

|-

|x||27||00||write protected

|-

|x||29||00||POR or bus reset occurred

|-

|x||31||01||format failed

|-

|x||32||01||defect list update error

|-

|x||32||02||no spares available

|-

|x||35||01||unspecified enclosure services failure

|-

|x||37||00||parameter rounded

|-

|x||3D||00||invalid bits in identify message

|-

|x||3E||00||LUN not self-configured yet

|-

|x||40||01||DRAM parity error

|-

|x||40||02||DRAM parity error

|-

|x||42||00||power-on or self-test failure

|-

|x||4C||00||LUN failed self-configuration

|-

|x||5C||00||RPL status change

|-

|x||5C||01||spindles synchronised

|-

|x||5C||02||spindles not synchronised

|-

|x||65||00||voltage fault

|-

|x||≥80||x||Vendor specific

|-

|x||x||≥80||Vendor specific

|-

|}

==References==

* [http://www.t10.org/lists/asc-num.htm T10: SCSI ASC/ASCQ Assignments]

[[Category:SCSI]]