March 22, 201214 yr one of my drives all of a sudden has a smart error of: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 118 089 006 Pre-fail Always - 190157725 3 Spin_Up_Time 0x0003 098 092 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 349 5 Reallocated_Sector_Ct 0x0033 001 001 036 Pre-fail Always FAILING_NOW 4095 7 Seek_Error_Rate 0x000f 065 060 030 Pre-fail Always - 3226928 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 783 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 1 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 37 184 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 100 084 000 Old_age Always - 98785951770 189 High_Fly_Writes 0x003a 049 049 000 Old_age Always - 51 190 Airflow_Temperature_Cel 0x0022 072 055 045 Old_age Always - 28 (Min/Max 25/44) 194 Temperature_Celsius 0x0022 028 045 000 Old_age Always - 28 (0 21 0 0) 195 Hardware_ECC_Recovered 0x001a 060 038 000 Old_age Always - 190157725 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 - 225812200555035 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 2438991105 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 129258736 and Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed: unknown failure 90% 783 0 # 2 Extended offline Completed: unknown failure 90% 750 0 # 3 Short offline Completed: unknown failure 90% 750 0 # 4 Short offline Completed: unknown failure 90% 750 0 # 5 Short offline Completed: unknown failure 90% 749 0 # 6 Short offline Completed without error 00% 60 - drive is under warranty until Feb of 2013 Is this something to worry about and should I RMA it ASAP? Thanks Myk
March 22, 201214 yr RMA it asap... this ones a goner I think.. Absolutely. RMA ASAP. Whatever you do DO NOT Press the "Check Parity" button. (or rather, not in correcting mode, as the bad sectors might clobber the parity that allows you to re-construct your data.) Best bet, stop the array, un-assign the bad disk. replace with spare. Then RMA it. Joe L.
March 22, 201214 yr Author ok, I got a 2TB sitting here, disk going bad is a 1.5TB, after I unassign, shutdown, replace it, should I preclear, or just assign and let unRaid do it, I dont have any extra sata ports atm to preclear when bad disk in the array... thanks Myk
March 22, 201214 yr A common recommendation here is to run a couple of preclear passes on all drives before adding them to your array. There have been plenty of postings describing preclear having exposed poor drives in the first or second passes with some people having seen more than 1 out of 10 new drives having issues. So the safest way of proceeding (if you don't need access to your data for a while) is to shutdown, attach only the drive you need to preclear then preclear it and once that is done reconnect the other good drives and start the array. Do you have a spare machine you could do the preclear on? Preclearing a 2TB drive is going to take about 28hours per pass... If your new drive is a Western Digital or a Seagate you probably should seriously consider preclearing before trusting data to it. Just search the forums for the reports of problems. If your new drive is an Hitachi you're probably a lot safer, there seem to have been fewer issues with these drives. Regards, Stephen
March 22, 201214 yr Author its a Hitachi_HDS5C3020ALA632_ML2220F32S5M4E replacing a seagate have removed the drive from the array and it of couse did not start as expected, so I am going to run preclear now - dont have a 2nd box to do it on ATM, but I have a Norco 20 bay case that everything is going to get moved to once the controller cards shows up later today. Then I will always keep a precleard spare ready. Thanks for the tips everyone.... and I just think if I was still using my dns-323 boxes, that i would have lost 1.5TB of data unRAID roks my world Myk
March 22, 201214 yr its a Hitachi_HDS5C3020ALA632_ML2220F32S5M4E replacing a seagate have removed the drive from the array and it of couse did not start as expected, so I am going to run preclear now - dont have a 2nd box to do it on ATM, but I have a Norco 20 bay case that everything is going to get moved to once the controller cards shows up later today. Then I will always keep a precleard spare ready. Thanks for the tips everyone.... and I just think if I was still using my dns-323 boxes, that i would have lost 1.5TB of data unRAID roks my world Myk You keeping a spare drive around is a good thing.. Good luck. Just remember that all you need do is replace the old drive with the new (check the i'm sure checkbox) and start the array. DO NOT, DO NOT, DO NOT SET A NEW DISK CONFIGURATION, AS THAT WOULD INVALIDATE THE PARITY YOU NEED TO RECONSTRUCT THE FAILED DRIVE. Joe L.
March 22, 201214 yr Author Correct, my array is not started and that drive slot is still unassigned until the preclear finishes, then i will assign the new drive to the slot and start up the array, and it should start rebuilding the data. I dont plan on starting the array until the new drive is assigned... thanks Myk
March 23, 201214 yr Author Rebuild just finished a bit ago and everything is happy and green. Thanks to all that offered my tips/instructions on how to get this this drive failure/rebuild - makes me warm and fuzzy inside knowing how unRAID saved a TON of my video library.... Thanks all! Myk
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