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Forum Discussion
jerryray
Oct 05, 2012Aspirant
Help with expansion
Over the last few days I replaced each of the four drives until complete. I went from 1 tb to 4tb drives. The unit is a NV+ latest firmware. I rebooted so the full size would be used. For the last ho...
StephenB
Oct 09, 2012Guru - Experienced User
It had to read every sector on the original three drives, compute the output sector and then write that to the fourth drive. The RAID is independent of the file system, so it is the same process even if the file system is empty. It is somewhat puzzling that it treated drive 4 differently from the rest.
jerryray wrote: OK, complete reset worked, but then did a 7 hours re-sync to the #4 drive.
Seems OK, should this -reset have taken so long?
You should check the SMART stats in frontview though, and make sure there are no reallocated sectors or other bad stuff before you load data back onto the NAS.
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