From: Ralf Hildebrandt (no email)
Date: Tue Jun 01 2004 - 11:36:30 EDT
* <>:
> This is really a POP/IMAP question. Postfix will impose a negligible
> load on the mailstore (and will not care too much about sporadic
> latency) in comparison with interactive POP/IMAP users. The I/O
> footprint of POP/IMAP will depend heavily on the POP/IMAP server
> architecture, the mail clients (does it cache content, metadata, ...
> does it disconnect and reconnect often, ...) and user habits.
Yes.
So, based on our usage pattern we could maybe extrapolate.
> You should probably ask on the appropriate POP/IMAP server list. With
> maildir the cost of scanning the directory for messages could be
> high. The IMAP server needs an efficient/stable algorithm to assign
> message "uids" so that client caching is maximally effective.
>
> The default answer for NFS attach is NetApp, if you find a good support
> engineer (who wants to help you get the right answer even if it does not
> lead to a sale), they may have experience with sizing servers for IMAP
> workloads, with luck using your particular IMAP server.
Sounds interesting.
-- Ralf Hildebrandt my current spamtrap http://www.arschkrebs.de/postfix/ Tel. +49 (0)30-450 570-155 Why you can't find your system administrators: They are in the cellars conducting the rituals to keep the machines running
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