On Mon, Aug 15, 2022 at 2:34 PM J. Roeleveld <[email protected]> wrote: > > Actually, there still is a piece of software that does this: > " app-backup/dar " > You can tell it to split the backups into slices of a specific size.
dar is a great tool, but unless something changed I don't think you can tell it to pause to remount the destination directory when it fills up. As was pointed out, tar does do this (which I thought was limited to tape devices, but apparently it works for disk as well). For most backup tools, if you want to backup 100TB of data to a bunch of 10TB drives, you basically need to have 100TB of scratch storage lying around to hold the backup before you split it up, or be able to mount all your drives at the same time in some kind of combined filesystem. -- Rich
