Thank you Ed, I was referring also to other people experiences regarding migration. Do's and Don'ts, and specially directory hashing strategies others are utilizing.
On Fri, Mar 1, 2013 at 12:38 AM, Ed W <li...@wildgooses.com> wrote: > On 28/02/2013 13:59, Pavel Dimow wrote: >> >> Hi, >> >> I want to upgrade to version 2 but I would like to solve a long >> standing problem with 'flat' directory structure ie >> we have /var/spool/vmail/mydomain.com/u...@mydomain.com and I want a >> new server with version 2 to have >> hashed directory structure like /var/spool/vmail/mydomain.com/u/s/user >> I was wondering it f there is some better solution then dir hashing or >> a way to hash a dir other then first two letters. >> Also any suggestion how to perform this migration from old to new >> server with hashing on the fly? >> > > My thought would be that unless you have millions of users, such a rename > process will take only seconds to minutes? Why not just take the server > down for a couple of minutes to do the rename process? > > If you wanted to be really clever, you could do it live using symlinks to > move the dirs, then update the dovecot config? > > Ed W