This is what I got after preclear on a new WD 2TB black. Looks like it is good except for the SMART error. Any suggestions?
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= unRAID server Pre-Clear disk /dev/sdf
= cycle 1 of 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 - Testing if the clear has been successful. DONE
= Disk Post-Clear-Read completed DONE
Disk Temperature: 27C, Elapsed Time: 21:19:57
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==
== Disk /dev/sdf has been successfully precleared
==
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S.M.A.R.T. error count differences detected after pre-clear
note, some 'raw' values may change, but not be an indication of a problem
19,20c19,20
< Offline data collection status: (0x80) Offline data collection activity
< was never started.
---
> Offline data collection status: (0x84) Offline data collection activity
> was suspended by an interrupting command from host.
58c58
< 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
---
> 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
63c63
< 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 14
---
> 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 15
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