Hi,
On Wed, 2003-12-10 at 00:23, Joshua Schmidlkofer wrote:
> Howdy,
> WOO HOOO!! On 2.4 inclusion, BTW. (good going!)
>
> An old e-mail from Christian Guggenberger recommends swidth be (n-1)
> disks for RAID5. Is that correct? I have a 66GB volume so I was
> looking at:
>
well, the (n-1)*sunit=swidth thing was suggested by Steve some long
time (sorry I can't find the original message in the archives) - and
that's what I'm using here on several Raid5 setups.
> Mylex AcceleRAID 170, 6 disks in a RAID 5. (4GB system memory)
>
> mkfs.xfs -d su=64k,sw=5 -l size=32m,sunit=64k -L "data" /dev/...
>
it looks right for the data-section, but sunit=64k is way too large for
the logsection.
(the syntax is wrong, too - should be sunit=128, (or su=64k) as sunit is
given in multplies of 512-byte block units)
see http://marc.theaimsgroup.com/?l=linux-xfs&m=104419883023845&w=2 for
more info.
Christian
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