On Fri, 15 May 2020 at 09:59, Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
On Fri, 2020-05-15 at 08:50 -0300, George N. White III wrote:
> > I recently had to throw out an old NAS I've been using for over 10
> > years. However I rescued the 2 HDDs and got a dual-slot USB SATA
> > docking station for them. To my astonishment Fedora recognised them
> > immediately as a RAID1 array (formatted with XFS) without me doing
> > anything.
> >
>
> If the drives are 10 years old I wouldn't waste time trying to use them.
> Your
> priority should be to get the data onto newer media.
>
The drives are newer. The original drives were Seagates, and both
failed (at different times so the RAID saved me). I replaced them with
WDs, one Black and one Blue, which have so far worked well. Now the
Black is showing some errors, not a large number but enough to make me
cautious.
Before retiring I worked in a group that had data-intensive workflows. I
have decades of experience with failing drives. Modern disk manufacturing
is quite reproducible, so heavily used drives start failing soon after end-of-
warranty. It is prudent to replace drives when the warranty expires.
Drives that give any indications of errors should be replaced ASAP as
they often fail completely soon after first indication of problems. Trying
to rescue such drives is usually a waste of time, although some have
been useful for non-critical purposes like sneaker-netting archives
(with internal consistency checks) to other systems.
George N. White III
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