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- In reply to: Paul Dekkers: "(re)partitioning advise"
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From: Jure Pečar (no email)
Date: Fri Jan 06 2006 - 19:04:13 EST
On Fri, 06 Jan 2006 12:47:49 +0100
Paul Dekkers <> wrote:
> Does it (filesystem / safety / recovery / performance-wise) make sense
> to use different partitions
Not so much different partitions as different disks. You have to think here
about the disk heads as the limited resource you have for the seeks, which
cost you the most in the random i/o scenario, such as mail serving.
With cyrus 2.3, you can split mailbox indexes and mails to separate
partitions (that are on different disks), which is a nice feature if you're
concerned for the above.
If you have some kind of SAN/NAS for your storage with lots of memory for
write caching, all that does not matter so much.
> I think about not enabling dir_index on ext3 after discovering that this
> dramatically _decreases_ read-performance
It does? The only case of that that I remember was a case of application
trying to be smart and doing its own direntry sorting or something like
that. Anyway, I'm mostly happy (happy as long as your ram is 100% ok)
reiserfs user and I don't care much about RH support :)
-- Jure Pečar http://jure.pecar.org/ ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
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