[Dovecot] reason to switch to 1.1

[Chris Laif]

On Mon, Apr 28, 2008 at 12:42 PM, Cor Bosman <cor at xs4all.nl> wrote:
>  > It may be good to list your hardware, user count, mailbox backend, and
>  > file system information, as I suppose that this kind of improvement is not
>  > universal.
>
>  This specific server is a dual core 2.8ghz xeon with hyperthreading
>  running on FreeBSD 6.2-STABLE. We have over 1 million mailboxes, with about
>  75,000 daily active users. At peak maybe 20,000 concurrent, in a mix of
>  webmail and direct imap.  (no POP, thats handled by different software).
>
>  The backend is a NetAPP 6070 with about 170 harddisks. All mail and
>  control files are on this netapp, but all indexes are on local disks, and
>  we try and make sure customers end up on the same imap server every time.
>  As soon as all servers are 1.1 I'll start experimenting with NFS indexes.
>

Just in case I understand you wrong: You're serving 20k concurrent
users with 1 (one) server?

What mailbox backend are you using? maildir?

Chris