On Mon, 11 Feb 2013 21:47:57 +0100 Reindl Harald <h.reindl@thelounge.net> wrote:
Am 11.02.2013 21:34, schrieb David Mehler:
I'm having to migrate servers. Both are dovecot2 systems. I'm wanting to copy over my mail store from one system to the other. I'd like to preserve dates/times of emails. These are maildir setups on both boxes, I'd like to be as transparent to the end user as possible. I currently have the first dovecot system offline and the second dovecot system is offline.
assuming that BOTH servers are down as fro any other transfers like mysql-datadirs and any critical things which should go save and fast by preserve attributes:
rsync --force --delete-after -tPrlHpogEAXz /folder/ root@newserver:/folder/
# -z compress # -t timestamps # -P progress # -r recursive # -l links # -H hard-links # -p permissions # -o owner # -g group # -E executability # -A acls # -X xtended attributes
That's how I'd do it also. I think if you didn't mind including -D, which from my understanding is --special and --devices, neither of which I'd expect in a maildir, and if you wanted to do your deletion manually after the fact, would this be equivalent?
rsync -PaHAX /folder/
The man page says -a (--archive) is equivalent to -rlptgoD, and you have all but D listed up there.
My thinking on later manually deleting the old maildir, instead of letting rsync do it, is that if somehow, some weird thing goes wrong, I have the old one for backup. Who knows, maybe I copied the thing on top of the wrong other maildir and have to back it out -- I'd have the old maildir as a reference of which files.
Of course there are arguments for instant deletion too, like the fact that a person runs the risk of accidentally deleting the wrong one, or the fact that a huge maildir folder could take hours to delete.
Personally, I never delete til I'm sure it got to the right place and is backed up there, and sometimes I keep it on the old box for a month "just in case" if the old box won't be used anymore.
SteveT