Also,
Consider going with two low end Xeons rather than the fastest (and
most expensive) Pentium 4. Dual 2.6ghz Xeons should outperform a
single 3.4ghz P4. It'll also be much more efficient running multiple
tasks (IMAP, HTTP, etc). Actually, what I'd really recommend is a
Dual Opteron running AS3 for AMD64 but some people (including upper
management) still think Intel == Stability. 4gb RAM is good, you can
never have enough RAM really. Ditch UW IMAP as fast as you can
unless you absolutely need it for backwards compat. Even if your
current user's folders are in mbox, consider migrating to Courier
Maildir's or Cyrus, it's a pain in the shortterm but it'll be well
worth it down the road. I'm using Courier on AS3 right now and have
found it to be extremely stable and very fast.
Jay
--
Jay Lee
Network / Systems Administrator
Information Technology Dept.
Philadelphia Biblical University
--
Cats are intended to teach us that not everything in nature has a
function. --Garrison Keillor
Marc Groot Koerkamp said:
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>>
>> Searching the archives, did not find much help, so I figured I ask...
>>
>> I'm looking at setting up a SM box as follows:
>>
>> HW:
>> Pentium 4 - 3.4 GHZ, 800 MHZ FSB
>> 4 GB DDR 400 Mhz
>> 2x 80GB SATA (HW Raid 1)
>>
>> SW:
>> RedHat 3 AS
>> Apache 1.3x (mod-ssl)
>> PHP 4.3.6 (mod-php instead of cgi)
>> Turck MMCache
>> UP-imapproxy (3 instances)
>> SM 1.4.2
>>
>> Plugins: spell, multilogin, retrieveuserdata, quicksave. Maybe filters,
>> html-mail, msg_flags, dictionary.
>
> If you want performance, do not use the filters plugins. Instead use
> server side filters like sieve.
>
> If you want a fast imap server then use Cyrus which also supports the
> sieve filtering protocol. There is a very nice plugin, avelsieve which
> allows users to create sieve filters.
>
> A nice paper to read is this:
> http://www-uxsup.csx.cam.ac.uk/~fanf2/hermes/doc/talks/2004-02-ukuug/paper.html
>
> cyrus rpm's for redhat can be achieved from:
> http://www.invoca.ch/pub/packages/cyrus-imapd/
>
> Other things to consider:
>
> Make sure you choose an imap server with the SORT extension. Then you can
> enable the server side sorting feature in SquirrelMail which improves
> performance dramaticly.
>
>
> Regards,
>
> Marc Groot Koerkamp.
>
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>
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