April 8, 201115 yr Hi All, I have just done a preclear on a 2TB WDEARS drive and the following line showed up in the results: ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VA LUE Raw_Read_Error_Rate = 193 189 51 ok 2210 Is this anything to be concerned about? I installed and precleared 2 new drives and this line only showed up on one of them. I'd just like to make sure it's nothing to worry about before adding it to the array. The full result screen is below. ================================================================== 1.6 = unRAID server Pre-Clear disk /dev/sdb = cycle 1 of 1, partition start on sector 64 = 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 - Verifying if the MBR is cleared. DONE = Disk Post-Clear-Read completed DONE Disk Temperature: 32C, Elapsed Time: 26:29:49 ========================================================================1.6 == WDC WD20EARS-00MVWB0 WD-WMAZA2488023 == Disk /dev/sdb has been successfully precleared == with a starting sector of 64 ============================================================================ ** Changed attributes in files: /tmp/smart_start_sdb /tmp/smart_finish_sdb ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VA LUE Raw_Read_Error_Rate = 193 189 51 ok 2210 Temperature_Celsius = 118 115 0 ok 32 No SMART attributes are FAILING_NOW 0 sectors were pending re-allocation before the start of the preclear. 0 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. 0 sectors are pending re-allocation at the end of the preclear, the number of sectors pending re-allocation did not change. 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. root@unRAID:/boot# 0
April 8, 201115 yr Hi All, I have just done a preclear on a 2TB WDEARS drive and the following line showed up in the results: ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VA LUE Raw_Read_Error_Rate = 193 189 51 ok 2210 Is this anything to be concerned about? I installed and precleared 2 new drives and this line only showed up on one of them. Nothing to be concerned about. The current value is 193, improved from the starting value of 189 at the beginning of the pre-clear. The failure threshold is 51 for that attribute and you are nowhere near it. other than that, your drive is fine. It looks like its performance "improved" as it went through the burn in period. Joe L.
April 8, 201115 yr Author Thank you for the quick reply Joe - great to know it's good to go. Great support for a great product - can't stop promoting it enough Don
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