Should I split a big (8TB) backup disk into more than one partition, or not?

Karl Auer kauer at biplane.com.au
Sun Sep 20 10:15:25 UTC 2020


On Sun, 2020-09-20 at 19:06 +1000, Karl Auer wrote:
> RAID10 is very popular in small systems: It's one or more sets of
> mirrored drives (RAID1) with the data striped across the sets.
> Redundancy, but still no error correction.

I realised this was possibly ambiguous. RAID10 is two (or more, but
it's almost always two) sets of two (or more, but it's almost always
two) drives. In each set of drives, all the drives are mirrored, so
each drive in a set has the exact same data as all the other drives in
the same set. I.e., each set is a RAID1. Then you stripe your data
across those sets - that's the RAID0.

RAID5 is probably the minimum for anyone who is serious about
continuity of access, with RAID6 if the arrays are very large. I.e.,
for small (or even medium) businesses, RAID5 or RAID6 is the go.

Regards, K.

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Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer

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