I originally posted this to smartmontools but was redirected here.
I am running into a problem with short or long smartctl selftests
causing a disk reset. I'm using kernel.org v2.6.27 (I've also tried a
few CentOS kernels) and smartmontools v5.38 (the latest of each). When I
initiate a short selftest it'll run fine for a couple seconds then the
iowait jumps up while the disk resets. I don't think this is a disk
issue since I have 36 identical machines (and they all have this same
reproducible behavior). I also don't think it is a power problem because
the disks have seated correctly and the machine stays online when the
cpus are at 100%. The disks seem to be functioning normally because I
can read and write the whole disk. After I request a short selftest I
get this in dmesg:
sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: cmd ca/00:40:bf:58:00/00:00:00:00:00/e0 tag 0 dma 32768 out
res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: link is slow to respond, please be patient (ready=0)
ata1: device not ready (errno=-16), forcing hardreset
ata1: soft resetting link
ata1: link is slow to respond, please be patient (ready=0)
ata1.00: configured for UDMA/133
ata1: EH complete
Here is some smartctl info that might be helpful (you can see it reset
three times):
# ./smartctl -d ata -a /dev/sda
smartctl version 5.38 [x86_64-unknown-linux-gnu] Copyright (C) 2002-8
Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Device Model: ST3500320NS
Serial Number: 9QM6YX2A
Firmware Version: SN05
User Capacity: 500,107,862,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Fri Oct 10 12:33:59 2008 CDT
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: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection:
Enabled.
Self-test execution status: ( 41) The self-test routine was
interrupted
by the host with a hard or soft
reset.
Total time to complete Offline
data collection: ( 634) 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: ( 114) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x003d) SCT Status 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 FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 072 069 044 Pre-fail
Always - 20837137
3 Spin_Up_Time 0x0003 099 099 000 Pre-fail
Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
Always - 8
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
Always - 0
7 Seek_Error_Rate 0x000f 100 253 030 Pre-fail
Always - 644433
9 Power_On_Hours 0x0032 100 100 000 Old_age
Always - 212
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
Always - 0
12 Power_Cycle_Count 0x0032 100 037 020 Old_age
Always - 8
184 Unknown_Attribute 0x0032 100 100 099 Old_age Always
- 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always
- 0
188 Unknown_Attribute 0x0032 100 100 000 Old_age Always
- 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always
- 0
190 Airflow_Temperature_Cel 0x0022 072 070 045 Old_age Always
- 28 (Lifetime Min/Max 28/28)
194 Temperature_Celsius 0x0022 028 040 000 Old_age Always
- 28 (0 25 0 0)
195 Hardware_ECC_Recovered 0x001a 035 032 000 Old_age Always
- 20837137
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always
- 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 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 Short offline Interrupted (host reset) 00% 212
-
# 2 Short offline Interrupted (host reset) 00% 211
-
# 3 Extended offline Interrupted (host reset) 00% 166
-
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.
Any ideas?
Scott
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