[Dovecot] dovecot dimensioning

[Gregory Finch]

I believe that Javier is talking IOPS, not throughput. You need a
storage system that is able to provide a high random read + write IOPS.
That single drive is going to cause you issues when things get busy.

-Greg

On 2012-11-01 12:32 PM, mancyborg at gmail.com wrote:
> Hi Javier, yes i see.
> Storage for now is just a 3tb sata2 hdd, so i guess that write performance is around 100 MB/s
>
> What do you think about that ?
>
> Thanks and regards,
> Mike
>
>
> On Thu, 1 Nov 2012 19:55:35 +0100
> Javier de Miguel Rodriguez <javierdemiguel-ext at us.es> wrote:
>
>> IMHO, fast storage is the main requirement for dovecot.
>>
>>
>>
>> El 01/11/2012, a las 16:20, "mancyborg at gmail.com" <mancyborg at gmail.com> escribió:
>>
>>> Hi All, first post here, nice to meet you :)
>>>
>>> I've been using dovecot + postfix + clamav + spamassassin for years but always with few users.
>>>
>>> Now i must build a server for 1500 users,
>>> they will use various email software (thunderbird, outlook, ..)
>>> the webmail (i'm not sure if squirrelmail or roundcube)
>>> and blackberry devices (with the BIS service).
>>>
>>> There will be around 1000 domains (virtual_domains) and postfix will read its users and domains from mysql.
>>>
>>> Let's say that they will send and receive around 5000 emails per hour (10K in total per hour).
>>>
>>> I was thinking to use karspersky server instead of clamav.
>>>
>>> I already have the hardware, it is a server with 4 physical cpu (Intel Xeon E5504 @ 2.00GHz) and 24 gb of ram,
>>> do you think it is enough ?
>>>
>>>
>>> Thanks for supporting,
>>> regards and have a nice day,
>>> Mike

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