Cyrus Aggregator advicories

[Simon Matter]

> OK. thanks
>
> Well, re. concurrent connections, it's hard to tell, but if I guess that
> about 5000 users

I just wanted to say that people should not forget that you can't compare
corporate usage with things like a university. I usually expect the
concurrent user connections to be 50-75% of the user count in corporate
environments.

> are checking their mail-boxes approximately at the same time ? ...
> mailbox sizes are
> not specified yet, but I'll guess that 50 Megs should do, because the
> users are for the
> most part POP3 users.

Interesting. Most companies want server based mailboxes to ease things
like central backups, webmail access and more.

>
> thoughts ?

I don't think you'll have any problems with one server. Just make sure you
have fast disks since IO is most important here. I know people are using
cyrus-imapd on RedHat AS cluster but I don't know how well it works with
RedHat AS3. Maybe others on the list can tell us more.

Simon

>
>
>
> Jure Pe_ar wrote:
>
>>On Wed, 20 Oct 2004 11:56:43 +0200
>>Tom Bryntesen <tom at bryntez.com> wrote:
>>
>>
>>
>>>Hi list.
>>>
>>>We are looking into the possibility of setting up the Cyrus IMAP
>>>Aggregator(http://asg.web.cmu.edu/cyrus/ag.html) for a company. They
>>> have
>>>about 10.000 mail-boxes and a single domain. We are looking for a
>>> solution
>>>
>>>that doesn't
>>>create traffic bottle-necks, has 24/7 up-time and hardware fail-over
>>>solution. The
>>>bandwidth is 100 Mbit.
>>>
>>>
>>
>>10.000 mailboxes is not that big number. A single machine could probablay
>>handle that. What you're interested in are concurrent connections and
>>mailbox sizes.
>>
>>
>>
>


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