On Mon, Jan 17, 2011 at 7:32 AM, Jan-Frode Myklebust wrote:
> On Fri, Jan 14, 2011 at 05:16:50PM -0800, Brad Davidson wrote:
>>
>> Don't give up on the simplest solution too easily - lots of us run NFS
>> with quite large installs. As a matter of fact, I think all of the large
>> installs run NFS;
>
> Extra question, what is the better : iSCSI SATA backend or NFS share ?
> NFS share is more convenient to have a failover server.
Everyone wants to use nfs for mailstorage, because it is convenient,
but nfs is the wrong storage model for mail.
NFS shines on big files but metadata performance is
On Fri, Nov 20, 2009 at 12:28 PM, Nicolas KOWALSKI
wrote:
> Robert Schetterer writes:
>
>> sorry for the stupid question what is "DAS"
>> do you have a link etc for it, to get more info
>
> See http://en.wikipedia.org/wiki/Direct-attached_storage
>
to put it simply: local storage
We use Dell R7
> But "faster" is not always the way to measure things.
>
> In this topic, I think that raw disk access speed is not a critical
> value; I've tested our setup with maildir on NFS and performance is
> close enough to local disks. Given this, I prefer the extra features
> our NAS/SAN setup gives us,
On Mon, Nov 23, 2009 at 10:25 PM, Rodolfo Gonzalez Gonzalez
wrote:
> Hello all,
>
> has someone worked with DRBD (http://www.drbd.org) for HA of mail storage?
> if so, does it have stability issues? comments and experiences are thanked
> :)
>
> Thanks,
> Rodolfo.
>
We have deployed active/passive
> Now I am thinking of taking that same thinking and getting rid of the
> deliver over nfs and deliver directly to the raid server like you
> said.
>
We have such a setup.
3 MX servers running postfix and antispam software.
2 clustered (drbd, heartbeat) IMAP/POP3 Servers
The 3 MX server deliver v
I think mail is the wrong application for nfs, because nfs is slow for
metadata operations.
Would rather use it for vm hosting than mail.
We used to have a small clustered netapp with 10k hdds and three
frontend servers with postfix and courier imap/pop3.
the setup was stable however the performan
i use drbd to keep the mailstore redundant and rsnapshot for backup.
>
> Anyone had success using some other clustered/HA filestore with dovecot who
> can share their experience? (OCFS/GFS over DRBD, etc?)
>
> My interest is more in bootstrapping a more highly available system from
> lower quality (commodity) components than very high end use
we use drbd with ext3
