> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Michael Hase
>
> got some strange results, please see
> attachements for exact numbers and pool config:
>
> seq write factor seq read factor
> MB/sec MB/sec
> single 123 1 135 1
> raid0 114 1 249 2
> mirror 57 0.5 129 1
I agree with you these look wrong. Here is what you should expect:
seq W seq R
single 1.0 1.0
stripe 2.0 2.0
mirror 1.0 2.0
You have three things wrong:
(a) stripe should write 2x
(b) mirror should write 1x
(c) mirror should read 2x
I would have simply said "for some reason your drives are unable to operate
concurrently" but you have the stripe read 2x.
I cannot think of a single reason that the stripe should be able to read 2x,
and the mirror only 1x.
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