[Dovecot] mdbox - healthy rotation size vs default - WAS Re: Dovecot tuning for GFS2

[Stan Hoeppner]

On 8/23/2013 7:17 AM, Charles Marcus wrote:
> On 2013-08-22 9:57 PM, Stan Hoeppner <stan at hardwarefreak.com> wrote:
>> On 8/21/2013 4:07 PM, Jan-Frode Myklebust wrote:
>>
>>> I would strongly suggest using mdbox instead. AFAIK clusterfs' aren't
>> I'd recommend mdbox as well, with a healthy rotation size.  The larger
>> files won't increase IMAP performance substantially but they can make
>> backup significantly quicker.
> 
> I'm considering migrating to mdbox... wondering what you consider
> 'healthy' rotation size.
> 
> I generally try to avoid changing defaults whenever possible, so, do you
> consider the default size of 2MB too small?
> 
> I guess though that it depends on usage. Since we get a decent number of
> large attachments, maybe that is a good reason to bump it up?

It's probably better to err large than to err small.  Analyze your
current maildir directories and make a distribution graph of file sizes.
 That should give you a good idea of what your rotation size should be.

-- 
Stan