I'm having a strange situation here. After some three years in a low traffic server, one of two Samsung drives in a RAID1 has failed yesterday:
Personalities : [raid1]
md0 : active raid1 sdb1[2](F) sda1[0]
732572608 blocks [2/1] [U_]
Since smartd hasn't reported anything, I checked the smart attributes and the only suspicious reading which differs on sdb (fail) compared to sda is:
sda:
191 G-Sense_Error_Rate 0x0022 252 252 000 Old_age Always - 0
sdb:
191 G-Sense_Error_Rate 0x0022 098 098 000 Old_age Always - 27650
G-sense error in a server rack? Maybe the sensor is failing?
But there's another funky reading on both drives: The latest short offline tests are "Interrupted (host reset)" and if I start a new one e.g. with smartctl --test=short /dev/sda
, the selective self-test log shows:
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Self_test_in_progress [90% left] (0-65535)
However, this short test never ends, even hours later the situation remains the same – on both drives. Could this be a firmware bug on the drives? Or is the controller failing?
Here's the full dump of both drives each with a short self test running:
/dev/sda:
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.12.13-gentoo] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: SAMSUNG SpinPoint F3
Device Model: SAMSUNG HD754JJ
Serial Number: S281J9CZ500175
LU WWN Device Id: 5 0024e9 2026e8417
Firmware Version: 1AJ10001
User Capacity: 750,156,374,016 bytes [750 GB]
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 6
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Fri Mar 21 09:04:35 2014 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 249) Self-test routine in progress...
90% of test remaining.
Total time to complete Offline
data collection: ( 6540) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 109) minutes.
SCT capabilities: (0x003f) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 100 100 051 Pre-fail Always - 59
2 Throughput_Performance 0x0026 055 052 000 Old_age Always - 6038
3 Spin_Up_Time 0x0023 072 071 025 Pre-fail Always - 8729
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 10
5 Reallocated_Sector_Ct 0x0033 252 252 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 252 252 051 Old_age Always - 0
8 Seek_Time_Performance 0x0024 252 252 015 Old_age Offline - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 23571
10 Spin_Retry_Count 0x0032 252 252 051 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 252 252 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21
191 G-Sense_Error_Rate 0x0022 252 252 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0022 252 252 000 Old_age Always - 0
194 Temperature_Celsius 0x0002 060 053 000 Old_age Always - 40 (Min/Max 20/48)
195 Hardware_ECC_Recovered 0x003a 100 100 000 Old_age Always - 0
196 Reallocated_Event_Count 0x0032 252 252 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 252 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 252 252 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0036 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x002a 001 001 000 Old_age Always - 102119
223 Load_Retry_Count 0x0032 252 252 000 Old_age Always - 0
225 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 21
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Aborted by host 90% 23571 -
# 2 Short offline Aborted by host 90% 23571 -
# 3 Short offline Aborted by host 90% 23571 -
# 4 Short offline Aborted by host 90% 23571 -
# 5 Short offline Interrupted (host reset) 90% 23571 -
# 6 Short offline Interrupted (host reset) 90% 23571 -
# 7 Short offline Interrupted (host reset) 90% 23571 -
# 8 Short offline Interrupted (host reset) 90% 23571 -
# 9 Extended offline Interrupted (host reset) 90% 23571 -
#10 Short offline Interrupted (host reset) 90% 23571 -
#11 Short offline Interrupted (host reset) 90% 23571 -
#12 Short offline Completed without error 00% 23559 -
#13 Short offline Completed without error 00% 23535 -
#14 Short offline Completed without error 00% 23511 -
#15 Extended offline Completed without error 00% 23495 -
#16 Short offline Completed without error 00% 23487 -
#17 Short offline Completed without error 00% 23463 -
#18 Short offline Completed without error 00% 23439 -
#19 Short offline Completed without error 00% 23415 -
#20 Short offline Completed without error 00% 23391 -
#21 Short offline Completed without error 00% 23367 -
SMART Selective self-test log data structure revision number 0
Note: revision number not 1 implies that no selective self-test has ever been run
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Self_test_in_progress [90% left] (0-65535)
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.
/dev/sdb:
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.12.13-gentoo] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: SAMSUNG SpinPoint F3
Device Model: SAMSUNG HD754JJ
Serial Number: S281J9CZ500174
LU WWN Device Id: 5 0024e9 2026e840e
Firmware Version: 1AJ10001
User Capacity: 750,156,374,016 bytes [750 GB]
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 6
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Fri Mar 21 09:05:10 2014 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 249) Self-test routine in progress...
90% of test remaining.
Total time to complete Offline
data collection: ( 6960) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 116) minutes.
SCT capabilities: (0x003f) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 100 100 051 Pre-fail Always - 69
2 Throughput_Performance 0x0026 055 054 000 Old_age Always - 6442
3 Spin_Up_Time 0x0023 071 071 025 Pre-fail Always - 8885
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 10
5 Reallocated_Sector_Ct 0x0033 252 252 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 252 252 051 Old_age Always - 0
8 Seek_Time_Performance 0x0024 252 252 015 Old_age Offline - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 23571
10 Spin_Retry_Count 0x0032 252 252 051 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 252 252 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21
191 G-Sense_Error_Rate 0x0022 098 098 000 Old_age Always - 27650
192 Power-Off_Retract_Count 0x0022 252 252 000 Old_age Always - 0
194 Temperature_Celsius 0x0002 064 054 000 Old_age Always - 35 (Min/Max 20/46)
195 Hardware_ECC_Recovered 0x003a 100 100 000 Old_age Always - 0
196 Reallocated_Event_Count 0x0032 252 252 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 252 252 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 252 252 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0036 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x002a 001 001 000 Old_age Always - 71575
223 Load_Retry_Count 0x0032 252 252 000 Old_age Always - 0
225 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 21
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Aborted by host 90% 23571 -
# 2 Short offline Aborted by host 90% 23571 -
# 3 Short offline Aborted by host 90% 23571 -
# 4 Short offline Aborted by host 90% 23571 -
# 5 Extended offline Interrupted (host reset) 90% 23571 -
# 6 Short offline Interrupted (host reset) 90% 23571 -
# 7 Short offline Interrupted (host reset) 90% 23571 -
# 8 Short offline Interrupted (host reset) 90% 23571 -
# 9 Short offline Interrupted (host reset) 90% 23571 -
#10 Short offline Interrupted (host reset) 90% 23571 -
#11 Short offline Interrupted (host reset) 90% 23571 -
#12 Short offline Interrupted (host reset) 90% 23571 -
#13 Short offline Completed without error 00% 23558 -
#14 Short offline Completed without error 00% 23534 -
#15 Short offline Completed without error 00% 23510 -
#16 Short offline Completed without error 00% 23486 -
#17 Extended offline Completed without error 00% 23471 -
#18 Short offline Completed without error 00% 23462 -
#19 Short offline Completed without error 00% 23438 -
#20 Short offline Completed without error 00% 23414 -
#21 Short offline Completed without error 00% 23390 -
SMART Selective self-test log data structure revision number 0
Note: revision number not 1 implies that no selective self-test has ever been run
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Self_test_in_progress [90% left] (0-65535)
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.
Thanks for your hints!
Best Answer
Controller errors seem possible here. Before you spend too much time on it, I'd suggest reseating all the cables. It's possible something has come loose over time, and is causing problems.
Also, you mentioned smartd... did you disable this while trying to run the self tests? It's possible this is interfering with the manual tests.
Was there anything in
dmesg
about why sdb is considered failed? Both drives appear to be reporting their health as PASSED, and I don't believe mdadm actually uses any of the SMART data to determine the health of a drive.