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RAID array filesystem recommendations
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this post was submitted on 10 Nov 2024
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In my system, the raid arrays seem to do periodic data scrubbing automatically. Maybe it's something that's part of Debian, or maybe it's just a default kernel setting. I don't think it helps much with data integrity -- I think it helps more just by ensuring the continued functionality of the drives.
When it's running, you can type
cat /proc/mdstatto see the progress.That command will also show you if there is a failing drive, so that you can replace it.