On Thu, 22 Apr 1999, Carlos Carvalho wrote:
John Ronan ([EMAIL PROTECTED]) wrote on 22 April 1999 16:03:
>/dev/md2 is raid5 across 4 WDC AC313000R's (I can only work with
>what I have in the office) In the raidtab I gave it a chunk size of
>128 and I used the following mke2fs command.
>mke2fs -b 4096 0R stride=32 -m0 /dev/md2
I'd like to have a way to measure the performance, but I don't know
how. Doug Ledford recommends using bonnie on a just-created array to
check performance with various chunck sizes. What bothers me most is
that it seems that the best settings depend on your particular files
and usage...
i tried this with raid0, and if bonnie is any guide, the optimal
configuration is 64k chunk size, 4k e2fs block size.
--
Paul Jakma
[EMAIL PROTECTED] http://hibernia.clubi.ie
PGP5 key: http://www.clubi.ie/jakma/publickey.txt
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Fortune:
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