[Ocfs2-users] OCFS2 on email storage

[Sérgio Surkamp]

Em Wed, 12 Aug 2009 15:05:44 +0800
"Thomas G. Lau" <thomas.lau at ntt.com.hk> escreveu:

> Dear all,
> 
> Anyone using OCFS2 on email storage system ? (postfix/qmail).
> Wondering if any of you suffer any problem?! Also, what parameter did
> you tune for email system only? thanks.
> 
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Hello Thomas,

We are using as general propose shared filesystem (email, shared files,
some web related files, etc...) and the only drawback from a local
filesystem is that it's a bit slower due to cluster stack.

About the tuning we have reduced the block size and pre-allocated size
to reduce the on-disk size, since email messages usually are tiny files
(lets say about 8K per message).

Our setup:

mkfs.ocfs2 -b 4096 -C 4096 -N 4 /dev/sd<X>

If you plan to use it for a large number of accounts, keep your eye on
the 32000 sub-directories limitation.

Regards,
-- 
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