March 5, 201313 yr I'm building a new unRaid box with a HP N40L - 6 drive configuration. I ran preclear on the other 5 drives and got 0's across the board. While preclearing the 5th drive, it was taking far longer and appeared to freeze. I Ctrl-C'd the process and restarted it. It took 55 hours to complete, but it eventually did. unRaid Server version 5.0-rc11 AiO Here is the log: ================================================================== 1.13 = unRAID server Pre-Clear disk /dev/sdf = cycle 1 of 1, partition start on sector 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 - Verifying if the MBR is cleared. DONE = Disk Post-Clear-Read completed DONE Disk Temperature: 43C, Elapsed Time: 55:26:28 ========================================================================1.13 == ST3000DM001-9YN166 W1F19125 == Disk /dev/sdf has been successfully precleared == with a starting sector of 1 ============================================================================ ** Changed attributes in files: /tmp/smart_start_sdf /tmp/smart_finish_sdf ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VA LUE Raw_Read_Error_Rate = 119 75 6 ok 229982 984 Reallocated_Sector_Ct = 74 82 36 ok 35312 Spin_Retry_Count = 100 100 97 near_thresh 0 End-to-End_Error = 100 100 99 near_thresh 0 Reported_Uncorrect = 1 1 0 near_thresh 54061 High_Fly_Writes = 1 1 0 near_thresh 942 Airflow_Temperature_Cel = 57 55 45 near_thresh 43 Temperature_Celsius = 43 45 0 ok 43 Current_Pending_Sector = 62 84 0 ok 6296 Offline_Uncorrectable = 62 84 0 ok 6296 No SMART attributes are FAILING_NOW 2672 sectors were pending re-allocation before the start of the preclear. 6864 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. 6296 sectors are pending re-allocation at the end of the preclear, a change of 3624 in the number of sectors pending re-allocation. 23688 sectors had been re-allocated before the start of the preclear. 35312 sectors are re-allocated at the end of the preclear, a change of 11624 in the number of sectors re-allocated. This is a brand new drive. I'm new to unRaid and Preclear - what does this mean? Should I return the drive? Will it function, but I should keep an eye out for it? Thanks in advance for your help.
March 5, 201313 yr Well, technically it didn't fail it; anyway, first of all can you please use the code tags, it makes it so much easier to read, second of all you have way to many reallocated/pending sectors along with the fact that the drive is pretty hot (Mine caps at ~ 28 degrees in constant use for 10+ hours. 43 degrees isn't really a failure point (Most are rated to 50-75), but, you'd still want to look into trying to get better air circulation). I'd first of all look into the reason why you have over forty thousand bad sectors.
March 5, 201313 yr Author I fixed the code tag - sorry... What could/would cause 40,000 bad sectors on a brand new drive?
March 5, 201313 yr Some drives are just bad off the line. http://en.wikipedia.org/wiki/Bathtub_curve However I dont think they are normally 40k bad...
March 5, 201313 yr I fixed the code tag - sorry... What could/would cause 40,000 bad sectors on a brand new drive? Bad shipping (from manufacturer to retailer and retailer to you)/etc Only thing I could think of, I'm sure there's more.
March 6, 201313 yr I'd definitely get the drive replaced. It clearly has issues, and they're only likely to get worse with time. Your other 5 drives tested perfectly, so you want the 6th one to do the same
March 6, 201313 yr I'm building a new unRaid box with a HP N40L - 6 drive configuration. I ran preclear on the other 5 drives and got 0's across the board. While preclearing the 5th drive, it was taking far longer and appeared to freeze. I Ctrl-C'd the process and restarted it. It took 55 hours to complete, but it eventually did. 2672 sectors were pending re-allocation before the start of the preclear. 6864 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. 6296 sectors are pending re-allocation at the end of the preclear, a change of 3624 in the number of sectors pending re-allocation. 23688 sectors had been re-allocated before the start of the preclear. 35312 sectors are re-allocated at the end of the preclear, a change of 11624 in the number of sectors re-allocated. This is a brand new drive. I'm new to unRaid and Preclear - what does this mean? Should I return the drive? Will it function, but I should keep an eye out for it? Thanks in advance for your help. Most likely it is a bad drive. It happens. I would NOT use that drive. Send it back for replacement/RMA. With so many bad sectors I'd suspect that either the disk itself is faulty or the power supply is marginal to your full set of disks. There have been many other users who have found a basic power supply has issues when they install the 6th or 7th disk. Granted, most issues would be on spin-up, but I figured I'd ask what specific make/model power supply? (Actually, just need to know if it is a single rail supply or a multi-rail supply and the 12volt rail amperage(s). )
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