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Forum Discussion
Should I run "Volume Scan" regularly?
I have ReadyNAS NV+ device which has been working just fine with 4 2 terabyte drive in XRAID configuration. I have read that sometimes spots on the drive go bad and unless scrubbing is done those spo...
Resync affects the RAID striping. Basically, the separate disks are aggregated together into a single volume by the RAID striping. That single volume is formatted, and information stored in it. Volume Scans look at the formatted data - particularly the file directories, and checks them for consistency. Resync is looking at / rebuilding the RAID striping underneath.
File scrubbing is like a volume scan, except that it includes checking all the files; not just the directories.
Doing a volume scan periodically is a good idea. The volume scan itself is non-destructive, though of course if there is an error that needs correcting, there could possibly be some negative consequences. However, I think that if you tried to access the files affected by those errors you would basically see the same problems. In any event, you should maintain backups, and not count on RAID to protect your data.
File scrubbing is like a volume scan, except that it includes checking all the files; not just the directories.
Doing a volume scan periodically is a good idea. The volume scan itself is non-destructive, though of course if there is an error that needs correcting, there could possibly be some negative consequences. However, I think that if you tried to access the files affected by those errors you would basically see the same problems. In any event, you should maintain backups, and not count on RAID to protect your data.
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