[Dovecot] mail spool filesystem

Dave McGuire mcguire at neurotica.com
Fri Aug 19 22:01:09 EEST 2011

   Good luck!

   FYI, my mail spools are on ZFS filesystems under Solaris on 
UltraSPARC.  It is lightning fast with 100+ dovecot imap processes 
pounding away.  I've not yet enabled compression and done the 
copy/recopy dance, though.


On 08/19/2011 02:57 PM, Felipe Scarel wrote:
> I was not aware of that... I went with FUSE to test the deduplication
> feature of ZFS. I'll check out this link you've provided, many thanks Dave.
> :)
> On Fri, Aug 19, 2011 at 15:48, Dave McGuire<mcguire at neurotica.com>  wrote:
>> On 08/19/2011 02:45 PM, Felipe Scarel wrote:
>>> I'm testing out ZFS-fuse on my new install (talked about it on the other
>>> thread), no issues so far. The builtin deduplication and compression sure
>>> do
>>> help a lot, roughly 30% less storage space required so far.
>>> They don't advertise it as exactly "production" quality, but I'm willing
>>> to
>>> try it out, we're doing regular backups. The mail system hasn't gone live
>>> yet though, so I'm a bit uneasy on the performance side of things under
>>> heavy load.
>>   You are aware that there's a real in-kernel ZFS implementation under Linux
>> now, right?  See http://zfsonlinux.org/.  I've done some very basic
>> testing with it, and so far, it works.  Going through FUSE is slower than
>> pissing tar; this implementation won't have that problem.
>>   FUSE is useful for many things.  Performance-sensitive filesystems on
>> production servers is oh-so-NOT one of them. ;)
>>              -Dave
>> --
>> Dave McGuire
>> Port Charlotte, FL

Dave McGuire
Port Charlotte, FL

More information about the dovecot mailing list