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[smartmontools-support] selftest causing host resets
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From: Scott B. <sc...@cs...> - 2008-10-10 18:00:36
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I am running into a problem with short or long selftests causing a disk reset. I'm using kernel.org v2.6.27 and smartmontools v5.38. When I initiate a short selftest it'll run fine for a few 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 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. I think this might be a smartmontools problem (or the disk's implementation of SMART). 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. Thanks for any pointers ya'll might have. Scott |
