I've been re-thinking my backup strategy - I wanted to see what input others have. At this time - I'm using sdbox as the primary storage format and running on a single server.
Previously, all my backups were simple filesystem backups. Either inotify-based or cron-based. The whole mail folder structure would then be copied to a remote storage site. I've changed services - I now use OpenDrive for the remote storage and can access the remote drive as a mounted folder via WebDAV. I also now use a cron-based series of restic jobs for the backup processing.
Because I have some large folders - both personal & business letters going back quite some time as well as mailing list archives - some mail folders can be quite sizable. Now I'm wondering, between sdbox's support for alternate locations and the ability to use different storage formats via namespaces - perhaps I should setup archive folders that are stored differently to improve backup performance. Maybe maildir or even mbox for the archive folders - I create one per year?
Any comments? Experiences?
-- Daniel