Every once in a while, my HDDs (6 1TB drives in a Linux md RAID-6 array) make a brief "click" sound, and I get this from dmesg. I don't really have any clue how to start diagnose this, or even how serious it is. I can provide any other information that might help.
[734275.661643] ata3.00: exception Emask 0x10 SAct 0x6 SErr 0x90202 action 0xe frozen
[734275.661647] ata3.00: irq_stat 0x00400000, PHY RDY changed
[734275.661650] ata3: SError: { RecovComm Persist PHYRdyChg 10B8B }
[734275.661652] ata3.00: failed command: READ FPDMA QUEUED
[734275.661656] ata3.00: cmd 60/00:08:00:08:3a/04:00:07:00:00/40 tag 1 ncq 524288 in
[734275.661656] res 40/00:10:00:0c:3a/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[734275.661657] ata3.00: status: { DRDY }
[734275.661659] ata3.00: failed command: READ FPDMA QUEUED
[734275.661661] ata3.00: cmd 60/80:10:00:0c:3a/02:00:07:00:00/40 tag 2 ncq 327680 in
[734275.661661] res 40/00:10:00:0c:3a/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[734275.661663] ata3.00: status: { DRDY }
[734275.661666] ata3: hard resetting link
[734279.860371] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[734279.882364] ata3.00: configured for UDMA/133
[734279.896422] ata3: EH complete
[735590.682564] ata1.00: exception Emask 0x10 SAct 0x4 SErr 0x90202 action 0xe frozen
[735590.682569] ata1.00: irq_stat 0x00400000, PHY RDY changed
[735590.682572] ata1: SError: { RecovComm Persist PHYRdyChg 10B8B }
[735590.682574] ata1.00: failed command: READ FPDMA QUEUED
[735590.682578] ata1.00: cmd 60/00:10:00:7c:93/04:00:07:00:00/40 tag 2 ncq 524288 in
[735590.682578] res 40/00:10:00:7c:93/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[735590.682579] ata1.00: status: { DRDY }
[735590.682582] ata1: hard resetting link
[735594.715103] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[735594.717729] ata1.00: configured for UDMA/133
[735594.731123] ata1: EH complete
[736745.389703] ata3.00: exception Emask 0x10 SAct 0x7 SErr 0x90202 action 0xe frozen
[736745.389707] ata3.00: irq_stat 0x00400000, PHY RDY changed
[736745.389710] ata3: SError: { RecovComm Persist PHYRdyChg 10B8B }
[736745.389712] ata3.00: failed command: READ FPDMA QUEUED
[736745.389715] ata3.00: cmd 60/00:00:00:44:e4/04:00:07:00:00/40 tag 0 ncq 524288 in
[736745.389715] res 40/00:10:00:4c:e4/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736745.389717] ata3.00: status: { DRDY }
[736745.389718] ata3.00: failed command: READ FPDMA QUEUED
[736745.389721] ata3.00: cmd 60/00:08:00:48:e4/04:00:07:00:00/40 tag 1 ncq 524288 in
[736745.389721] res 40/00:10:00:4c:e4/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736745.389723] ata3.00: status: { DRDY }
[736745.389724] ata3.00: failed command: READ FPDMA QUEUED
[736745.389726] ata3.00: cmd 60/80:10:00:4c:e4/02:00:07:00:00/40 tag 2 ncq 327680 in
[736745.389726] res 40/00:10:00:4c:e4/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736745.389728] ata3.00: status: { DRDY }
[736745.389731] ata3: hard resetting link
[736749.535411] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[736749.537993] ata3.00: configured for UDMA/133
[736749.551459] ata3: EH complete
[736871.093158] ata1.00: exception Emask 0x10 SAct 0x7 SErr 0x90202 action 0xe frozen
[736871.093164] ata1.00: irq_stat 0x00400000, PHY RDY changed
[736871.093167] ata1: SError: { RecovComm Persist PHYRdyChg 10B8B }
[736871.093170] ata1.00: failed command: READ FPDMA QUEUED
[736871.093175] ata1.00: cmd 60/00:00:00:14:ec/04:00:07:00:00/40 tag 0 ncq 524288 in
[736871.093175] res 40/00:10:00:1c:ec/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736871.093178] ata1.00: status: { DRDY }
[736871.093180] ata1.00: failed command: READ FPDMA QUEUED
[736871.093184] ata1.00: cmd 60/00:08:00:18:ec/04:00:07:00:00/40 tag 1 ncq 524288 in
[736871.093184] res 40/00:10:00:1c:ec/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736871.093186] ata1.00: status: { DRDY }
[736871.093188] ata1.00: failed command: READ FPDMA QUEUED
[736871.093192] ata1.00: cmd 60/80:10:00:1c:ec/02:00:07:00:00/40 tag 2 ncq 327680 in
[736871.093192] res 40/00:10:00:1c:ec/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736871.093194] ata1.00: status: { DRDY }
[736871.093198] ata1: hard resetting link
[736871.093226] ata3.00: exception Emask 0x10 SAct 0x4 SErr 0x90202 action 0xe frozen
[736871.093238] ata3.00: irq_stat 0x00400000, PHY RDY changed
[736871.093247] ata3: SError: { RecovComm Persist PHYRdyChg 10B8B }
[736871.093254] ata3.00: failed command: READ FPDMA QUEUED
[736871.093268] ata3.00: cmd 60/00:10:00:18:ec/04:00:07:00:00/40 tag 2 ncq 524288 in
[736871.093268] res 40/00:10:00:18:ec/00:00:07:00:00/40 Emask 0x10 (ATA bus error)
[736871.093275] ata3.00: status: { DRDY }
[736871.093285] ata3: hard resetting link
[736875.185513] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[736875.188123] ata1.00: configured for UDMA/133
[736875.201464] ata1: EH complete
[736875.361508] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[736875.364080] ata3.00: configured for UDMA/133
[736875.377505] ata3: EH complete
Here's what mdadm says:
root@cobalt:~# mdadm --detail /dev/md2
/dev/md2:
Version : 1.2
Creation Time : Wed Oct 3 23:25:43 2012
Raid Level : raid6
Array Size : 3711338496 (3539.41 GiB 3800.41 GB)
Used Dev Size : 927834624 (884.85 GiB 950.10 GB)
Raid Devices : 6
Total Devices : 6
Persistence : Superblock is persistent
Update Time : Sat Oct 4 16:19:32 2014
State : clean
Active Devices : 6
Working Devices : 6
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : cobalt:2 (local to host cobalt)
UUID : 4e8d6d0f:76148df5:f9356fe4:4aff770c
Events : 664
Number Major Minor RaidDevice State
0 8 3 0 active sync /dev/sda3
1 8 19 1 active sync /dev/sdb3
2 8 35 2 active sync /dev/sdc3
3 8 51 3 active sync /dev/sdd3
4 8 67 4 active sync /dev/sde3
5 8 83 5 active sync /dev/sdf3
Here's SMART data from /dev/sda:
root@cobalt:~# smartctl -x /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-27-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.12
Device Model: ST31000524AS
Serial Number: 5VPBKAB7
LU WWN Device Id: 5 000c50 0493faba7
Firmware Version: JC4B
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sat Oct 4 16:22:26 2014 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM level is: 208 (intermediate), recommended: 208
APM feature is: Unavailable
Rd look-ahead is: Enabled
Write cache is: Enabled
ATA Security is: Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Unknown
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 609) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 179) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x103f) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate POSR-- 119 099 006 - 226103712
3 Spin_Up_Time PO---- 100 100 000 - 0
4 Start_Stop_Count -O--CK 100 100 020 - 117
5 Reallocated_Sector_Ct PO--CK 100 100 036 - 0
7 Seek_Error_Rate POSR-- 083 060 030 - 226371995
9 Power_On_Hours -O--CK 081 081 000 - 17014
10 Spin_Retry_Count PO--C- 100 100 097 - 0
12 Power_Cycle_Count -O--CK 100 100 020 - 117
183 Runtime_Bad_Block -O--CK 071 071 000 - 29
184 End-to-End_Error -O--CK 100 100 099 - 0
187 Reported_Uncorrect -O--CK 097 097 000 - 3
188 Command_Timeout -O--CK 100 099 000 - 4
189 High_Fly_Writes -O-RCK 100 100 000 - 0
190 Airflow_Temperature_Cel -O---K 061 053 045 - 39 (Min/Max 38/39)
194 Temperature_Celsius -O---K 039 047 000 - 39 (0 17 0 0 0)
195 Hardware_ECC_Recovered -O-RC- 035 025 000 - 226103712
197 Current_Pending_Sector -O--C- 100 100 000 - 0
198 Offline_Uncorrectable ----C- 100 100 000 - 0
199 UDMA_CRC_Error_Count -OSRCK 200 200 000 - 4
240 Head_Flying_Hours ------ 100 253 000 - 99664716120872
241 Total_LBAs_Written ------ 100 253 000 - 1687451554
242 Total_LBAs_Read ------ 100 253 000 - 1287307392
||||||_ K auto-keep
|||||__ C event count
||||___ R error rate
|||____ S speed/performance
||_____ O updated online
|______ P prefailure warning
General Purpose Log Directory Version 1
SMART Log Directory Version 1 [multi-sector log support]
Address Access R/W Size Description
0x00 GPL,SL R/O 1 Log Directory
0x01 GPL,SL R/O 1 Summary SMART error log
0x02 GPL,SL R/O 5 Comprehensive SMART error log
0x03 GPL R/O 5 Ext. Comprehensive SMART error log
0x06 GPL,SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x09 GPL,SL R/W 1 Selective self-test log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters
0x21 GPL R/O 1 Write stream error log
0x22 GPL R/O 1 Read stream error log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xa1 GPL,SL VS 20 Device vendor specific log
0xa2 GPL VS 2248 Device vendor specific log
0xa8 GPL,SL VS 129 Device vendor specific log
0xa9 GPL,SL VS 1 Device vendor specific log
0xb0 GPL VS 2928 Device vendor specific log
0xbd GPL VS 252 Device vendor specific log
0xbe-0xbf GPL VS 65535 Device vendor specific log
0xc0 GPL,SL VS 1 Device vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer
SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
Device Error Count: 3
CR = Command Register
FEATR = Features Register
COUNT = Count (was: Sector Count) Register
LBA_48 = Upper bytes of LBA High/Mid/Low Registers ] ATA-8
LH = LBA High (was: Cylinder High) Register ] LBA
LM = LBA Mid (was: Cylinder Low) Register ] Register
LL = LBA Low (was: Sector Number) Register ]
DV = Device (was: Device/Head) Register
DC = Device Control Register
ER = Error register
ST = Status register
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 3 [2] occurred at disk power-on lifetime: 15745 hours (656 days + 1 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER -- ST COUNT LBA_48 LH LM LL DV DC
-- -- -- == -- == == == -- -- -- -- --
40 -- 51 00 00 00 00 01 5a 53 b1 00 00 Error: UNC at LBA = 0x015a53b1 = 22696881
Commands leading to the command that caused the error were:
CR FEATR COUNT LBA_48 LH LM LL DV DC Powered_Up_Time Command/Feature_Name
-- == -- == -- == == == -- -- -- -- -- --------------- --------------------
60 00 00 00 08 00 00 00 00 08 08 40 00 00:01:11.224 READ FPDMA QUEUED
60 00 00 00 08 00 00 00 00 08 08 40 00 00:01:11.224 READ FPDMA QUEUED
60 00 00 00 08 00 00 00 00 08 08 40 00 00:01:11.224 READ FPDMA QUEUED
60 00 00 00 08 00 00 00 00 08 00 40 00 00:01:11.224 READ FPDMA QUEUED
60 00 00 00 08 00 00 05 d2 1f f0 40 00 00:01:11.224 READ FPDMA QUEUED
Error 2 [1] occurred at disk power-on lifetime: 15745 hours (656 days + 1 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER -- ST COUNT LBA_48 LH LM LL DV DC
-- -- -- == -- == == == -- -- -- -- --
40 -- 51 00 00 00 00 01 5a 53 b1 00 00 Error: UNC at LBA = 0x015a53b1 = 22696881
Commands leading to the command that caused the error were:
CR FEATR COUNT LBA_48 LH LM LL DV DC Powered_Up_Time Command/Feature_Name
-- == -- == -- == == == -- -- -- -- -- --------------- --------------------
60 00 00 00 08 00 00 08 be 2f 70 40 00 00:01:07.978 READ FPDMA QUEUED
60 00 00 00 08 00 00 00 00 03 c0 40 00 00:01:07.978 READ FPDMA QUEUED
60 00 00 01 00 00 00 01 5a 52 d8 40 00 00:01:07.978 READ FPDMA QUEUED
60 00 00 00 08 00 00 03 04 75 40 40 00 00:01:07.978 READ FPDMA QUEUED
60 00 00 00 20 00 00 00 24 72 00 40 00 00:01:07.977 READ FPDMA QUEUED
Error 1 [0] occurred at disk power-on lifetime: 15745 hours (656 days + 1 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER -- ST COUNT LBA_48 LH LM LL DV DC
-- -- -- == -- == == == -- -- -- -- --
40 -- 51 00 00 00 00 01 5a 53 b1 00 00 Error: UNC at LBA = 0x015a53b1 = 22696881
Commands leading to the command that caused the error were:
CR FEATR COUNT LBA_48 LH LM LL DV DC Powered_Up_Time Command/Feature_Name
-- == -- == -- == == == -- -- -- -- -- --------------- --------------------
60 00 00 01 00 00 00 01 5a 52 d8 40 00 00:01:04.761 READ FPDMA QUEUED
60 00 00 00 20 00 00 00 24 72 00 40 00 00:01:04.758 READ FPDMA QUEUED
60 00 00 00 08 00 00 03 04 75 40 40 00 00:01:04.758 READ FPDMA QUEUED
61 00 00 00 08 00 00 05 04 54 08 40 00 00:01:04.755 WRITE FPDMA QUEUED
60 00 00 00 08 00 00 00 00 03 c0 40 00 00:01:04.752 READ FPDMA QUEUED
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 14257 -
# 2 Short offline Completed without error 00% 14232 -
# 3 Extended offline Completed without error 00% 14214 -
# 4 Short offline Completed without error 00% 14208 -
# 5 Short offline Completed without error 00% 14184 -
# 6 Short offline Completed without error 00% 14160 -
# 7 Short offline Completed without error 00% 14136 -
# 8 Short offline Completed without error 00% 14112 -
# 9 Short offline Completed without error 00% 14088 -
#10 Short offline Completed without error 00% 14064 -
#11 Extended offline Completed without error 00% 14046 -
#12 Short offline Completed without error 00% 14040 -
#13 Short offline Completed without error 00% 14016 -
#14 Short offline Completed without error 00% 13992 -
#15 Short offline Completed without error 00% 13968 -
#16 Short offline Completed without error 00% 13944 -
#17 Short offline Completed without error 00% 13920 -
#18 Short offline Completed without error 00% 13896 -
#19 Extended offline Completed without error 00% 13878 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
SCT Status Version: 3
SCT Version (vendor specific): 522 (0x020a)
SCT Support Level: 1
Device State: Active (0)
Current Temperature: 39 Celsius
Power Cycle Min/Max Temperature: 38/39 Celsius
Lifetime Min/Max Temperature: 17/47 Celsius
Under/Over Temperature Limit Count: 0/0
SCT Temperature History Version: 2
Temperature Sampling Period: 1 minute
Temperature Logging Interval: 59 minutes
Min/Max recommended Temperature: 14/55 Celsius
Min/Max Temperature Limit: 10/60 Celsius
Temperature History Size (Index): 128 (117)
Index Estimated Time Temperature Celsius
118 2014-09-29 11:09 36 *****************
... ..( 4 skipped). .. *****************
123 2014-09-29 16:04 36 *****************
124 2014-09-29 17:03 37 ******************
... ..( 4 skipped). .. ******************
1 2014-09-29 21:58 37 ******************
2 2014-09-29 22:57 36 *****************
... ..( 6 skipped). .. *****************
9 2014-09-30 05:50 36 *****************
10 2014-09-30 06:49 37 ******************
11 2014-09-30 07:48 36 *****************
... ..( 21 skipped). .. *****************
33 2014-10-01 05:26 36 *****************
34 2014-10-01 06:25 37 ******************
... ..( 10 skipped). .. ******************
45 2014-10-01 17:14 37 ******************
46 2014-10-01 18:13 38 *******************
... ..( 2 skipped). .. *******************
49 2014-10-01 21:10 38 *******************
50 2014-10-01 22:09 37 ******************
... ..( 32 skipped). .. ******************
83 2014-10-03 06:36 37 ******************
84 2014-10-03 07:35 38 *******************
... ..( 9 skipped). .. *******************
94 2014-10-03 17:25 38 *******************
95 2014-10-03 18:24 39 ********************
96 2014-10-03 19:23 39 ********************
97 2014-10-03 20:22 38 *******************
98 2014-10-03 21:21 37 ******************
... ..( 6 skipped). .. ******************
105 2014-10-04 04:14 37 ******************
106 2014-10-04 05:13 38 *******************
107 2014-10-04 06:12 37 ******************
108 2014-10-04 07:11 37 ******************
109 2014-10-04 08:10 37 ******************
110 2014-10-04 09:09 38 *******************
111 2014-10-04 10:08 ? -
112 2014-10-04 11:07 38 *******************
113 2014-10-04 12:06 ? -
114 2014-10-04 13:05 38 *******************
115 2014-10-04 14:04 ? -
116 2014-10-04 15:03 39 ********************
117 2014-10-04 16:02 39 ********************
SCT Error Recovery Control:
Read: Disabled
Write: Disabled
Device Statistics (GP Log 0x04) not supported
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x000a 2 1 Device-to-host register FISes sent due to a COMRESET
0x0001 2 0 Command failed due to ICRC error
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0004 2 0 R_ERR response for host-to-device data FIS
0x0006 2 0 R_ERR response for device-to-host non-data FIS
0x0007 2 0 R_ERR response for host-to-device non-data FIS
