September 5, 201312 yr Just ran preclear on a disk last night: This morning this was the output as well as a smart report: Any ideas why the failure? Disk Temperature: 30C, Elapsed Time: 11:32:51 =========================================================================== = unRAID server Pre-Clear disk /dev/sdh = cycle 1 of 1 = Disk Pre-Clear-Read completed DONE = Step 1 of 10 - Copying zeros to first 2048k bytes DONE = Step 2 of 10 - Copying zeros to remainder of disk to clear it DONE = Step 3 of 10 - Disk is now cleared from MBR onward. DONE = Step 4 of 10 - Clearing MBR bytes for partition 2,3 & 4 DONE = Step 5 of 10 - Clearing MBR code area DONE = Step 6 of 10 - Setting MBR signature bytes DONE = Step 7 of 10 - Setting partition 1 to precleared state DONE = Step 8 of 10 - Notifying kernel we changed the partitioning DONE = Step 9 of 10 - Creating the /dev/disk/by* entries DONE = Step 10 of 10 - Testing if the clear has been successful. DONE = Disk Temperature: 30C, Elapsed Time: 11:32:56 ============================================================================ == == SORRY: Disk /dev/sdh MBR could NOT be precleared == == out4= 00092 == out5= 00092 ============================================================================ 0000000 0000 0000 0000 0000 0000 0000 0000 0000 1+0 records in 1+0 records out * 512 bytes (512 B) copied0000700 0000 0000 0000 003f 0000 8871 e8e0 0000 , 0.000543096 s, 943 kB/s 0000720 0000 0000 0000 0000 0000 0000 0000 0000 * 0000760 0000 0000 0000 0000 0000 0000 0000 5c5c 0001000 root@Tower:/boot# smartctl -a /dev/sdh smartctl 5.40 2010-10-16 r3189 [i486-slackware-linux-gnu] (local build) Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: ST2000DL003-9VT166 Serial Number: 5YD4L855 Firmware Version: CC32 User Capacity: 2,000,398,934,016 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: Thu Sep 5 03:34:01 2013 PDT 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: ( 612) 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: ( 255) minutes. Conveyance self-test routine recommended polling time: ( 2) minutes. SCT capabilities: (0x30b7) 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 118 099 006 Pre-fail Always - 177387640 3 Spin_Up_Time 0x0003 093 093 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 096 096 020 Old_age Always - 5001 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 072 060 030 Pre-fail Always - 12938664274 9 Power_On_Hours 0x0032 069 065 000 Old_age Always - 27563 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 121 183 Runtime_Bad_Block 0x0032 099 099 000 Old_age Always - 1 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 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 070 056 045 Old_age Always - 30 (0 4 32 29) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 11 193 Load_Cycle_Count 0x0032 098 098 000 Old_age Always - 5073 194 Temperature_Celsius 0x0022 030 044 000 Old_age Always - 30 (Min/Max 0/32768) 195 Hardware_ECC_Recovered 0x001a 033 011 000 Old_age Always - 177387640 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 - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 34239479288413 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 2105668327 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 1517667442 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.
September 6, 201312 yr == SORRY: Disk /dev/sdh MBR could NOT be precleared Had this issue trying to do a pre-clear with the drive in a cheap eSata external box -- ya know, one of those you slide in the drive bare set vertical... Putting the drive inside the server (different mounting, but also was a different disk controller) and all precleared fine x 3. Dunno if it's related to your experience.
September 7, 201312 yr Author This has now happened on two drives. Both these drives have previously red balled so I was testing them. Odd that the smart data seems OK. Running on a supermicro 8 port data card on the unrair server. Also tried on a Ubuntu server with a esata dock. Guess they are good for an RMA.
September 7, 201312 yr Just ran preclear on a disk last night: This morning this was the output as well as a smart report: Any ideas why the failure? Yes, you are running a VERY OLD version of the preclear script. (probably 10 or more versions out of date)
September 8, 201312 yr Author Thanks Joe. All Set new version worked. I think that was the first drive I cleared running a V5.0 of unraid...
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