Tango06 Posted January 14, 2015 Share Posted January 14, 2015 I precleared 4 wd red disk without problems, but yesterday on fifth disk...: Hard Disk: WD Red 4TB. After preclear it returned several errors and bad sectors: ============================================================================ ** Changed attributes in files: /tmp/smart_start_sdc /tmp/smart_finish_sdc ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VALUE Raw_Read_Error_Rate = 199 100 51 ok 1620 Temperature_Celsius = 127 131 0 ok 25 No SMART attributes are FAILING_NOW 0 sectors were pending re-allocation before the start of the preclear. 148 sectors were pending re-allocation after pre-read in cycle 1 of 1. 0 sectors were pending re-allocation after zero of disk in cycle 1 of 1. 261 sectors are pending re-allocation at the end of the preclear, a change of 261 in the number of sectors pending re-allocation. 0 sectors had been re-allocated before the start of the preclear. 0 sectors are re-allocated at the end of the preclear, the number of sectors re-allocated did not change. ============================================================================ Is this disk safe to assign to my array? If you think I can use it safely, what are next steps to fix pending sectors? I am not sure to understand the report, but it seems there are 216 pending sectors not fixed after preclear... If you think it's better don't use it in my array and RMA it, the disk they send me will be a new one or a refurbished one? Thank you in advance. Sorry, I am newbie. Full preclear report attached Preclear_result_files.zip Quote Link to comment
itimpi Posted January 14, 2015 Share Posted January 14, 2015 You cannot safely use a disk with Pending sectors in unRAID. About the only thing you can try is another pre-clear cycle. If that does not fix things then you should give up on that disk. The fact that the number of pending sectors went up during the pre-clear you have done is not very hopeful and suggests the disk is on the way out. Quote Link to comment
WeeboTech Posted January 14, 2015 Share Posted January 14, 2015 SMARTCTL REPORT Disk: /dev/sdc smartctl 6.2 2013-07-26 r3841 [i686-linux-3.9.11p-unRAID] (local build) Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: WDC WD40EFRX-68WT0N0 Serial Number: WD-WCC4E0DXYF75 LU WWN Device Id: 5 0014ee 20b55c4f2 Firmware Version: 82.00A82 User Capacity: 4,000,787,030,016 bytes [4.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Wed Jan 14 15:39:56 2015 CET 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: (52680) 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: ( 527) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x703d) 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 0x002f 199 193 051 Pre-fail Always - 1620 3 Spin_Up_Time 0x0027 100 253 021 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 3 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 41 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 3 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 0 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 2 194 Temperature_Celsius 0x0022 127 117 000 Old_age Always - 25 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 261 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 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. This looks to be a new drive judging from the power on hours of 41. I would suggest you do a Conveyance test. Example: smartctl -t conveyance /dev/sd? (looks to be c in this capture) This will take about 5 minutes, Then dump the smartctl report smartctl -a dev/sd? (looks to be c in this capture) See if there are failures. I would also suggest doing a smart long test. smartctl -t long /dev/sd? (looks to be c in this capture)This will take approx 527 minutes (almost 10 hours). Then dump the smartctl report (tomorrow) smartctl -a dev/sd? (looks to be c in this capture) See if there are failures and post smart report for review. If you have conveyance test failures, there is probably damage during shipping. As it stands now, this drive is not a safe candidate for unRAID. Quote Link to comment
Tango06 Posted January 15, 2015 Author Share Posted January 15, 2015 Hi, I ran short test, dump attached. Please help me to examine it, I don't understand the results. now running long test... Thank you. smartctl_t_conv_short.txt Quote Link to comment
WeeboTech Posted January 15, 2015 Share Posted January 15, 2015 That was the conveyance test. The short or long test will probably fail with the same issue. SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Conveyance offline Completed: read failure 90% 48 258907202 # 2 Conveyance offline Completed: read failure 90% 48 258907207 # 3 Conveyance offline Completed: read failure 90% 48 258907201 and what it's reveals is damage in shipping. The conveyance test is a specific test for testing drives(that support it) for damage during transport. From Wikipedia http://en.wikipedia.org/wiki/S.M.A.R.T. Self-tests SMART drives may offer a number of self-tests: Short Checks the electrical and mechanical performance as well as the read performance of the disk. Electrical tests might include a test of buffer RAM, a read/write circuitry test, or a test of the read/write head elements. Mechanical test includes seeking and servo on data tracks. Scans small parts of the drive's surface (area is vendor-specific and there is a time limit on the test). Checks the list of pending sectors that may have read errors, and it usually takes under two minutes. Long/Extended A longer and more thorough version of the short self-test, scans the entire disk surface, with no time limit. Usually takes hundreds of minutes, approximately one gigabyte per minute for modern drives. Conveyance Intended as a quick test to identify damage incurred during transporting of the device from the drive manufacturer to the computer manufacturer. Only available on ATA drives, and it usually takes several minutes. Selective Some drives allow selective self-tests of just a part of the surface. The self-test logs for SCSI and ATA drives are slightly different. It is possible for the long test to pass even if the short test fails. Send the drive back from where you bought it, if it's too late you'll have to RMA it. Quote Link to comment
Tango06 Posted January 15, 2015 Author Share Posted January 15, 2015 No, it's not too late. I received it on monday 12. I Hope the seller will replace it. Quote Link to comment
WeeboTech Posted January 15, 2015 Share Posted January 15, 2015 No, it's not too late. I received it on monday 12. I Hope the seller will replace it. The seller can put an insurance claim on it if they cannot get reimbursed. (unless they are doing something funky). If not then you may need to go through the Western Digital RMA process. Quote Link to comment
Tango06 Posted January 15, 2015 Author Share Posted January 15, 2015 I accepted the packet with 'reserve' because the box was sligthly damaged. Tomorrow (I live in Italy, it's night now) I contact them. Thank you again. Quote Link to comment
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