[Dovecot] migrate machines and upgrade

[Charles Marcus]

On 2010-10-08 3:54 PM, Donny Brooks wrote:
> On Friday, October 08, 2010 02:33 PM CDT, Charles Marcus <CMarcus at Media-Brokers.com> wrote: 
>> Or upgrade to 2.0.5 on the new server and still use doveadm - this
>> is probably best if you can...

> The newest I see for an rpm is 2.0.4 on the atrpms site. We try not
> to build from source due to the way a previous admin messed things
> up. Any pointers on a source for the 2.0.5 rpm?

No, sorry - but you could join the atrpms users list and request an
updated rpm - axel and co are usually pretty responsive, or so I've
heard (my package manager is not rpm based)...

Also, I said doveadm above, but I meant dsync (which is only available
in 2.0.x)...

>> I think the best thing would be to do what you need to do to get
>> 2.0.5 installed on the new server, make sure it is working properly
>> in your environment and for your use case, then migrate the users.
>> 
>> How many users do you have? I'm fairly certain there is a good way
>> to do this mostly automated in batches...

> We have about 160 users I believe at last count. Mail boxes range in
> size from a few MB to around 8GB. Being a state agency, they tell us
> we cannot delete any mail. This is why I am wanting to switch to
> Maildir so I can migrate "old" messages off to a different
> machine/disk for archival purposes but still remain accessible.

The dovecot wiki has decent instructions for accomplishing your goal -
have you read them thoroughly? If not, I recommend doing so, then coming
back with any questions:

http://wiki2.dovecot.org/Tools/Dsync

-- 

Best regards,

Charles