Re: RAID 5 performance issue.

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On Sat, 6 Oct 2007, Justin Piszcz wrote:



On Wed, 3 Oct 2007, Andrew Clayton wrote:

On Wed, 3 Oct 2007 12:48:27 -0400 (EDT), Justin Piszcz wrote:

Also if it is software raid, when you make the XFS filesyste, on it,
it sets up a proper (and tuned) sunit/swidth, so why would you want
to change that?

Oh I didn't, the sunit and swidth were set automatically. Do they look
sane?. From reading the XFS section of the mount man page, I'm not
entirely sure what they specify and certainly wouldn't have any idea
what to set them to.

Justin.

Cheers,

Andrew
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As long as you ran mkfs.xfs /dev/md0 it should have optimized the filesystem according to the disks beneath it.

Justin.


Also can you provide the smartctl -a /dev/sda
/dev/sdb

etc for each disk?
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