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We are planning to migrate to Maildir++ (Courier-Imap), so I'm not
worried about
the final delivery into the mail store. The issue I had was more with exim's
queue (db,msglog,input) - so I'll create 3 mount points on the NetApp for the
queues:
/queue/mail1
/queue/mail2
/queue/mail3
one for each server (each containing db,msglog,input sub-directories), and a
single shared mail store mounted as:
/store
This way, if one of our mail servers dies a death - we can simply build a new
box quickly (we run debian+exim - so that'll take 15 minutes!), setup all the
mount points and not lose any mail or DB state for the queue. This was the
reason for my original question of a shared mail queue (e.g. sharing 'msglog'
and 'input' between servers) - but I'm happy with having seperate
queues and an
unpatched Exim if that is the safest option.
Cheers,
Ray
Quoting Edgar Lovecraft <exim-list@???>:
> Ray Jackson wrote:
>>
>> Apologies from starting a new thread - my last one kinda died :(
>> I've read differing opinions on this issue... Can I have a quick 'yes'
>> or 'no' answer - is it safe to have a dedicated mount point for a mail
>> spool per server over NFS (we use a NetApp FAS270's) using Exim 4.34?
>> Will it be safe for NFS locking etc.?
>
> Seperate dirs per server, no problems, as locking issues only come into
> play when more than one service/server/app is trying to access a file
> simultaniously. The NetApp products however help in managing this, and
> do a very good job of it. Someone else had mentioned moving to maildir
> over mbox, there is also mbx, and of course, this is a matter of what
> you currently have, and how well you trust the NFS locking issues on your
> OS. As to too the locking issues that were 'patched', this has more to do
> with the systems you use, Linux has major problems with NFS and locking,
> even today, Sun/HP/AIX/SGI/etc. support NFS much better.
>
> Now, to answer the question of "will it work" take a look at this thread
> from several years ago, back when I was a exim/linux newbie :P
>
> http://www.exim.org/pipermail/exim-users/Week-of-Mon-20020513/038775.html
>
>> I am more than happy with NFS performance/reliability with our NetApp
>> and I trust the NetApp filer more than I trust local SCSI disks
>> (mirrored or not!). In 5 years we have never had a NetApp filer fail on
>> us...
>
> NetApp designes its products for this type of thing ;)
>
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