what is the best way to migrate

[Eric Doutreleau]

Well

we re planning to change our old cyrus imap server to a brand new one 
and we re wondering what would be the best way to do that.

our old server is based on a cyrus 2.2.10 and we will migrate to a 2.3.6 
version.

we have to copy the mailboxes from an old disks to new ones with a 
different partition layout

we move from 26 partiton to 4 partitions.

we would love to keep the state of messages in our users folders and to 
minimize the downtine.

what is the best way to migrate?

Thanks in advance for any help