On Friday 01 April 2005 03:19, Erik P. Olsen wrote: >On Fri, 2005-04-01 at 02:06 -0500, Jon LaBadie wrote: >> On Fri, Apr 01, 2005 at 08:46:31AM +0200, Belen Isla wrote: >> > Hi all, >> > >> > I am trying to configure amanda to backup my system and I would >> > like to use two different types of virtual tapes in a single >> > configuration file, I mean, I would like to use big virtual >> > tapes for full backups and smaller ones for incrementals. Is it >> > possible to use the parameter tapetype twice in the amanda.conf >> > file? In affirmative case, how can I associate a virtual tape >> > with the appropriate type? >> >> Just for my own interest ... >> >> Why do you want to do your own scheduling when amanda >> often does a far superior job to human defined scheduling. > >Hm. I would like to challenge this statement. It may be true if you > have a large network of systems to back up but if you only have one > system I doubt if it's true. Before my switch to Linux I backed up > my system (OS/2) on a weekly schedule with one full back-up and > four incremental back-ups to one tape only. It worked extremely > well, if I crashed my system - which I did very often - it took me > about half an hour to recover either using a stand-alone recover > program or my maintenance OS/2 if it was alive and I kept an > archive of up to 8 weeks of back-ups. Now with Linux and Amanda I > use 9 tapes mainly because Amanda won't add today's back-up to > yesterday's tape. I could probably do with less tapes but I feel > more confident with a large tape pool. > >I would add that I haven't yet found out how to keep a repository of >back-ups of the previous weeks like I was used to with OS/2.
Thats in the variable 'tapecycle'. If you have, say 30 tapes, and a 7 day dumpcycle, you will have the current, most recent in those last 7 tapes, but if one of them is defective, then you can back up another cycle, up to 3 past historys being available. I'm useing virtual tapes, 18 of them, with a 4 day dumpcycle, and that keeps a 180GB partition on a 200GB disk at about 95% capacity. >I like > the safe feeling of having a set of back-up tapes from which I know > I can recreate the system as it was on a specific day. Now I just > have my 9 tapes used in a round Robin fashion. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.34% setiathome rank, not too shabby for a WV hillbilly Yahoo.com and AOL/TW attorneys please note, additions to the above message by Gene Heskett are: Copyright 2005 by Maurice Eugene Heskett, all rights reserved.
