Gotz,
at that level of usage I would just add more drives. Working with NFS/clustering is not worth it when you are at that level. In the following months I'll send a e-mail to the list here talking about how I'm using Ceph FS successfully with Dovecot, but it's a lot of trouble. At the 1TB/2TB/4TB level, just go out and buy a bigger disk.
As a side note, with too may emails it is always a problem to have too many small files. I would recommend taking a look at mdbox.
Best, Daniel Colchete
On Tue, Jun 21, 2016 at 4:17 AM, Götz Reinicke - IT Koordinator < goetz.reinicke@filmakademie.de> wrote:
Hi,
we start to run out of diskspace soon as our users start to keep mails for longer time periods. That's fine, but space consuming.
The maildirs are about 1 TB in total, and not long ago we enabled zlib which is very nice.
Now I have some thoughts about the next steps:
a) Migrating the whole system to a new server with more storage?
b) Install a virtual server for the mailsystem and an extra storage system may be NFS?
c) Stay with the current server and move all mails to a bigger NFS storage.
The last option c) would be the most easy one for me as I currently have NFS space.
Any thoughts? Hints regarding the NFS storage? Pros Cons?
I have seen the dovecot wiki on NFS already and for now we will stay with one single dovecot server.
Thanks and regards . Götz