[Solved] Need some help interpreting preclear results

[Alex.vision]

So I just put two new WD-4TB drives in my HP N40L to prelcear. I ran both drives through 3 cycles of the preclear script.  One drive had no issuse, yet the other one had a few.  I'm posting the Smart report for the drive in question.

 

================================================================== 1.15

= unRAID server Pre-Clear disk /dev/sdc

= cycle 3 of 3, partition start on sector 1

=

= 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: 33C, Elapsed Time: 110:54:38

========================================================================1.15

== WDCWD40EZRX-00SPEB0 WD-WCC4E1NJJ0PH

== Disk /dev/sdc has been successfully precleared

== with a starting sector of 1

============================================================================

** Changed attributes in files: /tmp/smart_start_sdc /tmp/smart_finish_sdc

ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VALUE

Reallocated_Sector_Ct = 197 200 140 ok 100

Temperature_Celsius = 119 120 0 ok 33

Reallocated_Event_Count = 199 200 0 ok 1

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 3.

0 sectors were pending re-allocation after zero of disk in cycle 1 of 3.

292 sectors were pending re-allocation after post-read in cycle 1 of 3.

0 sectors were pending re-allocation after zero of disk in cycle 2 of 3.

3 sectors were pending re-allocation after post-read in cycle 2 of 3.

0 sectors were pending re-allocation after zero of disk in cycle 3 of 3.

1 sector is pending re-allocation at the end of the preclear,

a change of 1 in the number of sectors pending re-allocation.

0 sectors had been re-allocated before the start of the preclear.

100 sectors are re-allocated at the end of the preclear,

a change of 100 in the number of sectors re-allocated.

root@Tower:/usr/local/emhttp#

 

 

 

I'm just not too sure about the re-allocation count over the course of the preclears. Is this a low enough number that the drive should remain in good condition for a while, or should I RMA it now?  Thanks for the help.

WDC_WD40EZRX-00SPEB0_WD-WCC4E1NJJ0PH.txt

[archedraft]

If you just bought I would return it if possible and get a new one or if you cannot return it then I would RMA it. Your smart report is still showing a pending sector: 197 Current_Pending_Sector  0x0032  200  200  000    Old_age  Always      -      1

[Alex.vision]

Ok I'll start the return process. That is very disappointing. I bought these drives to start moving over my current 40TB windows 2012 drive pool. I was really excited to start work on it as the preclear a took about 100hrs. Oh well. Better to find out their bad now then when they have data on them. Thanks Archedraft for the help. 

[archedraft]

You're welcome and yes much better to find out before you start all the data transfer. Although I know the feeling of buying a brand new hard drive and not being able to play with it for a few days!