drive selection for disk arrays
dpchrist at holgerdanske.com
Wed Mar 25 22:20:01 UTC 2020
Jacques Foucry wrote:
> ALWAYS (when it's possible) buy and use disks from different brand
> (mix seagate, WD, etc..) in order to avoid same series and same
> I know this to late in this case, but keep this in mind.
> I know this will not help in this case, please excuse my
> intervention if it's inappropriate.
To date, most of my arrays have been composed of similar drives. But, I
run a SOHO LAN and have limited experience. I have been wondering about
using dissimilar drives to prevent simultaneous common-mode failures.
Backblaze publishes statistics for individual drives:
I would be curious to read any data or reports comparing arrays of
similar drives vs. arrays of dissimilar drives.
Have anyone seen a failure involving multiple similar drives all failing
in the same mode at the same time?
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