Jon LaBadie writes: >On Mon, Apr 10, 2017 at 09:05:32AM -0400, [email protected] wrote: >> Greetings. >> >> I seem to be getting an awful lot of full (level-0) backups: >> >Not unusual. It a product of having a couple of large DLEs and several, >relatively small DLEs. Amanda tries to schedule so that each runs >backup is about the same size. The large ones skew the average needed >each run and the only way to get nearer the average is to promote the >small DLEs to level 0.
Makes sense, and yes, that pretty-much matches my setup. I'm trying to figure out a way to split my two largest DLEs (one is 100GB and the other is about 60GB) into several smaller ones. The problem is, as was pointed out to me earlier, I can't (or at least, I don't know how to) get a good reference for "Based on your configuration, this is what will be backed up tonight." The only thing I can do is run it, and when it's finished, check out what was backed up. The other concern is that I'm using a hard disk as virtual tapes. If I had 200 real tapes, it wouldn't matter how much space was used, because they would get tossed in the vault until next time. With a hard disk, I can "overbook" my backups (I can define my changer as "200 x 100GB disks" without actually needing 20TB, because most of my backups aren't 100GB), but every GB I use on an unnecessary level-0 backup is a GB I don't have available when I need a "real" level-0 backup. >Maybe a feature request could be an alternate >scheduling scheme or a DLE setting to minimize promotions. That would be nice. In the meantime, thanks for the advice. --hymie! http://lactose.homelinux.net/~hymie [email protected]
