Christian Kellermann wrote:
Thanks for your replies!

The reason I asked is that I am thinking about a couple of methods
to detect failures of my two mirrored disks (by fs) automatically.
How do you check if your disks are still ok? I know I could invest

The newer high capacity drives all have high "raw error read rates" but they're generally all corrected as indicated by an equivalent value of "hardware ECC corrected." So this does not seem to really correspond to anything.

Frankly, the one SMART variable I've seen that seems to always correspond to impending disk failure is the "reallocated sector count." Once you see that incrementing, it's time to decommission that disk for anything other than scratch storage. Such drives are good for intermediate files of non-linear video editing until they die.

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