Re: dsync and altpath on shared storage.

On 2 Sep 2019, at 15.25, Peter Mogensen via dovecot <dovecot@dovecot.org> wrote:

Hi,

I was wondering...

If one had mdbox ALT path set to a shared storage mount (say, on NFS) and one wanted to move a mailbox to a different host... I guess it in principle wouldn't be necessary to copy all the ALT storage through dsync, when the volume could just be mounted on the new host.

Is there anyway for dsync to avoid moving Gigabytes of data for could just be "moved" by moving the mount?

Not tested but you can probably do something like this in the target server:

doveadm backup -u victim -R ssh sudouser@old-server "sudo doveadm dsync-server -o mail_location=sdbox:/location-to-your-sdbox/ -u victim"

just leave ALT storage path from the setting.

Sami