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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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 Posted: Sun Aug 21, 2016 7:58 am Post subject: Question About Drive in a Software RAID-5 |
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So I've got a three drive RAID-5 array. Yesterday I copied several gigabytes of data over and was maintaining about 85 MB/s transfer speed. Today, I moves about 9 more, and noticed the speed dropped to about 12 MB/s. I looked over at the server and noticed one of the drive lights stayed lit the entire time. I ran the smartstl -a command on the drive and it took about 30 seconds to extract all the data. Is this drive starting to "circle the drain"?
| Code: | === START OF INFORMATION SECTION ===
Model Family: SAMSUNG SpinPoint F2 EG
Device Model: SAMSUNG HD154UI
Serial Number: S1XWJ1KZ213847
LU WWN Device Id: 5 0024e9 00302519c
Firmware Version: 1AG01118
User Capacity: 1,500,301,910,016 bytes [1.50 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA/ATAPI-7, ATA8-ACS T13/1699-D revision 3b
Local Time is: Sun Aug 21 03:58:36 2016 EDT
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: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (18808) 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 314) minutes.
Conveyance self-test routine
recommended polling time: ( 33) 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 0x000f 100 100 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0007 063 063 011 Pre-fail Always - 11950
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 110
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 100 100 051 Pre-fail Always - 0
8 Seek_Time_Performance 0x0025 100 100 015 Pre-fail Offline - 0
9 Power_On_Hours 0x0032 089 089 000 Old_age Always - 55649
10 Spin_Retry_Count 0x0033 100 100 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0012 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 110
13 Read_Soft_Error_Rate 0x000e 100 100 000 Old_age Always - 0
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0033 100 100 000 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 1
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 077 039 000 Old_age Always - 23 (Min/Max 17/26)
194 Temperature_Celsius 0x0022 076 039 000 Old_age Always - 24 (3 38 27 17 0)
195 Hardware_ECC_Recovered 0x001a 100 100 000 Old_age Always - 4111713209
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x000a 100 100 000 Old_age Always - 0
201 Soft_Read_Error_Rate 0x000a 100 100 000 Old_age Always - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
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. |
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frostschutz
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Joined: 22 Feb 2005
Posts: 2977
Location: Germany
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| Posted: Sun Aug 21, 2016 8:05 am Post subject: |
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Although this SMART does not look too bad, this disk has "Auto Offline Data Collection: Disabled." and never run a single selftest.
In the future you should set up smartmontools to do disk monitoring and run regular selftests.
For now, do for all your disks:
| Code: |
smartctl --offlineauto=on /dev/sdx
smartctl -t long /dev/sdx # this takes a while
smartctl -a /dev/sdx # to check selftest progress and other values again
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Also check dmesg for obvious error messages?
If any errors/doubts come up about this drive, add a fourth drive to the system, add it as a spare to the array and then use `mdadm --replace`
If you do not run tests on your arrays / disks, you will not notice read errors in time and risk premature death of your RAID array.
If you do not have a backup, make one... |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 55011
Location: 56N 3W
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| Posted: Sun Aug 21, 2016 9:21 am Post subject: |
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Bigun,
Things like
| dmesg: | [415753.356757] ata1.00: configured for UDMA/133
[415753.356834] sd 0:0:0:0: [sda] Unhandled sense code
[415753.356838] sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
[415753.356843] sd 0:0:0:0: [sda] Sense Key : 0x3 [current] [descriptor]
[415753.356850] Descriptor sense data with sense descriptors (in hex):
[415753.356854] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[415753.356866] bd dd ff 50
[415753.356872] sd 0:0:0:0: [sda] ASC=0x11 ASCQ=0x4
[415753.356877] sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 bd dd fe d8 00 01 70 00
[415753.356888] end_request: I/O error, dev sda, sector 3185442640
[415753.356938] ata1: EH complete
[415753.843004] raid5_end_read_request: 16 callbacks suppressed
[415753.843013] md/raid:md2: read error corrected (8 sectors at 3169441616 on sda3) |
in dmesg are a very bad sign.
This drive died, another in the same raid set died 15 min later.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Sun Aug 21, 2016 3:44 pm Post subject: |
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dmesg isn't showing anything too daunting. Running a self-test on the offending drive now, waiting on results.
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Sun Aug 21, 2016 4:06 pm Post subject: |
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| frostschutz wrote: | | If you do not have a backup, make one... |
Nightly and offsite. I do not rely on RAID as backup. See my backup rig here.
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Sun Aug 21, 2016 9:54 pm Post subject: |
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Also, on a side note. I've ran the command to turn on offline data collection:
| Code: | # smartctl --offlineauto=on /dev/sda
smartctl 6.4 2015-06-04 r4109 [i686-linux-4.4.6-gentoo] (local build)
Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
SMART Automatic Offline Testing Enabled every four hours. |
However:
| Code: | === 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. |
_________________
"It's ok, they might have guns but we have flowers." - Perpetual Victim |
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Sun Aug 21, 2016 11:14 pm Post subject: |
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Test completed:
| Code: | # smartctl -a /dev/sda
smartctl 6.4 2015-06-04 r4109 [i686-linux-4.4.6-gentoo] (local build)
Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: SAMSUNG SpinPoint F2 EG
Device Model: SAMSUNG HD154UI
Serial Number: S1XWJ1KZ213847
LU WWN Device Id: 5 0024e9 00302519c
Firmware Version: 1AG01118
User Capacity: 1,500,301,910,016 bytes [1.50 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA/ATAPI-7, ATA8-ACS T13/1699-D revision 3b
Local Time is: Sun Aug 21 19:14:00 2016 EDT
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: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (18808) 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 314) minutes.
Conveyance self-test routine
recommended polling time: ( 33) 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 0x000f 100 100 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0007 063 063 011 Pre-fail Always - 11950
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 110
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 100 100 051 Pre-fail Always - 0
8 Seek_Time_Performance 0x0025 100 100 015 Pre-fail Offline - 10891
9 Power_On_Hours 0x0032 089 089 000 Old_age Always - 55664
10 Spin_Retry_Count 0x0033 100 100 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0012 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 110
13 Read_Soft_Error_Rate 0x000e 100 100 000 Old_age Always - 0
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0033 100 100 000 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 1
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 074 039 000 Old_age Always - 26 (Min/Max 17/27)
194 Temperature_Celsius 0x0022 075 039 000 Old_age Always - 25 (3 38 28 17 0)
195 Hardware_ECC_Recovered 0x001a 100 100 000 Old_age Always - 2121425378
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x000a 100 100 000 Old_age Always - 0
201 Soft_Read_Error_Rate 0x000a 100 100 000 Old_age Always - 0
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 Extended offline Completed without error 00% 55664 -
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.
|
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frostschutz
Advocate
Joined: 22 Feb 2005
Posts: 2977
Location: Germany
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| Posted: Sun Aug 21, 2016 11:48 pm Post subject: |
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Not sure what the issue is with the auto offline data collection, some drives don't support it but yours claims it does.
Nothing horrible seems to have appeared in the selftest... it passed, and reallocated/pending/uncorrectable is still 0.
So at least according to the drive's internal diagnostics it seems to be fine. |
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Mon Aug 22, 2016 2:49 am Post subject: |
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| frostschutz wrote: | Not sure what the issue is with the auto offline data collection, some drives don't support it but yours claims it does.
Nothing horrible seems to have appeared in the selftest... it passed, and reallocated/pending/uncorrectable is still 0.
So at least according to the drive's internal diagnostics it seems to be fine. |
Ok then, I have backups just in case anyway. Good to know.
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 55011
Location: 56N 3W
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| Posted: Tue Aug 23, 2016 9:16 am Post subject: |
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Bigun,
Maybe a failing SATA data cable, or SATA port on the motherboard.
Internally, the drive looks ok.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Bigun
Advocate
Joined: 21 Sep 2003
Posts: 2198
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| Posted: Tue Aug 23, 2016 9:20 am Post subject: |
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Something else may be going on, see here.
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Kernel & Hardware
