[Dovecot] Dovecot vs Exim file locking

[Ibrahim Harrani]

Hi,

I am trying to deploy large e-mail system but I will use qmail-ldap on Linux
and maildir will be mounted by all backends from Netapp via NFS.

In LDAP, there will be only one mailhost entry. All qmail-ldap backends will
have same name and will run dovecot instance. So, all users can access to
mailbox from any server in the pool.  If I distribute users with different
mailhosts and if one mailhost server is down,
the users will not able to access their mailbox until fix the problem or
change mailhost entry with working one.

But I don't know the NFS issues in my planned setup. Do you think that I
will face
same NFS locks/problem(OS based) with Netapp NFS?

Thanks in advance.

On Mon, Dec 21, 2009 at 9:15 AM, Daniel Campos <dcampos at cesex.com> wrote:

> Hi Ecuardo,Timo, thanks for your answers!
>
> -----Mensaje original-----
> De: Timo Sirainen [mailto:tss at iki.fi]
> Enviado el: viernes, 18 de diciembre de 2009 15:30
> Para: Daniel Campos
> CC: dovecot at dovecot.org
> Asunto: Re: [Dovecot] Dovecot vs Exim file locking
>
> On Dec 18, 2009, at 8:41 AM, Daniel Campos wrote:
>
> > We're planning to deploy a large e-mail system storing maildirs in a NAS
> > system through NFS. One of the options we're thinking on is using
> > Dovecot+EXIM.
> >
> > As far as I've read in both project's documentation, both services
> implement
> > locking allowing multiple servers to access the same maildirs in order to
> > distribute the service load.
>
> Mail deliveries don't require any locks with maildir. But for Dovecot, be
> sure to read http://wiki.dovecot.org/NFS
>
>
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