On Wed, 2005-08-31 at 23:29 +0100, Alasdair G Kergon wrote: > > vg_hordein-pvmove0: 377487360 209715200 mirror 2 3:1 22:64 204799/204800 > > Look at the last fraction saying how far it got: it suggests you got a > bad sector. Check your system log to see if it reported this (and says > which sector). Ok, everything you said makes sense thanks. But is there any other possible explanation than a bad sector? Only there's several reasons I don't think there are any bad sectors: 1. The source disk is < 4 months old (though that doesn't preclude anything) 2. There's no sector errors in the syslog, and normally there would be. 3. SMART doesn't report any errors, and normally it would. In particular I'd expect to see Offline_Uncorrectable != 0, and Current_Pending_Sector != 0 too. Also Raw_Read_Error_Rate != Hardware_ECC_Recovered. And something in the error log. In this case the smart output is 100% clean (attached just in case). Note that I've got cron running a short test daily and an extended test weekly. All clean too. Cheers, Martin.
smartctl version 5.33 [x86_64-redhat-linux-gnu] Copyright (C) 2002-4 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Device Model: ST3400832A Serial Number: 3NF04XED Firmware Version: 3.01 User Capacity: 400,088,457,216 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 7 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Wed Aug 31 23:48:03 2005 BST 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: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 430) 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: ( 1) minutes. Extended self-test routine recommended polling time: ( 134) minutes. 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 048 046 006 Pre-fail Always - 98203519 3 Spin_Up_Time 0x0003 097 097 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 10 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 084 066 030 Pre-fail Always - 284957913 9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 2665 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 12 194 Temperature_Celsius 0x0022 043 056 000 Old_age Always - 43 (Lifetime Min/Max 0/21) 195 Hardware_ECC_Recovered 0x001a 048 046 000 Old_age Always - 98203519 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 - 0 200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0 202 TA_Increase_Count 0x0032 100 253 000 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 Completed without error 00% 2645 - # 2 Short offline Completed without error 00% 2621 - # 3 Short offline Completed without error 00% 2597 - # 4 Extended offline Completed without error 00% 2576 - # 5 Short offline Completed without error 00% 2552 - # 6 Short offline Completed without error 00% 2527 - # 7 Short offline Completed without error 00% 2504 - # 8 Short offline Completed without error 00% 2481 - # 9 Short offline Completed without error 00% 2456 - #10 Short offline Completed without error 00% 2433 - #11 Extended offline Completed without error 00% 2412 - #12 Short offline Completed without error 00% 2386 - #13 Short offline Completed without error 00% 2362 - #14 Short offline Completed without error 00% 2339 - #15 Short offline Completed without error 00% 2315 - #16 Short offline Completed without error 00% 2291 - #17 Short offline Completed without error 00% 2268 - #18 Extended offline Completed without error 00% 2246 - #19 Short offline Completed without error 00% 2220 - #20 Short offline Completed without error 00% 2196 - #21 Short offline Completed without error 00% 2173 - 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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