Move of mailboxes

[frank.richter at hrz.tu-chemnitz.de]

>> we have 2 backends in a murder environment (running cyrus 2.3.11) which works.
>>
>> And now for the problem:
>>
>> We want to replace both backends by new hardware. Therefore the mailboxes
>> from both must be moved to the replacement machines.
>>
>> Is there a recommended procedure to do the move? Any pointers (even to pitfalls) are welcome.
> You should upgrade Cyrus on the new machines because there's a quota bug<  2.3.14 (I think) where the quota on the new machine counts expunged messages or something similar so you end up needing to run quota -f to fix it.
>
> For a live migration, where downtime per mailbox is minimal - add the new hardware into the murder as machines 3 and 4. Use XFER to move the mailboxes to the new machines.

... with the consequence that you need more disk space on the new server if 
you're using "singleinstancestore: 1" in /etc/imapd.conf (default), as you 
'll loose the hardlinks. In our case this would be a facor of 1.3.

Frank Richter

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