On Mon, 2008-09-08 at 11:49 -0400, Dan Langille wrote: > Peter Sjoberg wrote: > > I been using bacula to backup my environment to tape for a while but I > > started to run into problems with size and time and considering changing > > the way I do backup. > > I started to read up a little but it's so many options I decided to ask > > the exports for suggestions. > > > > At the moment I'm backing up everything to DLT 40/80 tapes and despite > > excluding a lot it takes almost 24h to complete a full backup. > > I do a full backup once/month and take the tapes offsite for offsite > > storage. Daily and weekly is stored onsite. > > Easiest might be to get a bigger/faster tapedrive but the budget for > > that isn't there so I'm thinking of another solution in using disks > > similar to using tapes. (1T external disk $200-250CAD, equal in tapes - > > way more + the tapedrive) > > > > What I'm thinking of is that > > I get 3 external disks (USB or eSata, size to be determent) > > I install latest version of Bacula > > I hook up 2 of the disks to the server > > Daily and Differential keeps on going to tape > > Full goes to the first disk. Once the first disk is filled up it moves > > to the next disk. > > When the 1st disk is filled up I remove that off site and put in the 3rd > > disk. > > Once the 2nd disk is filled it moves on to the 3rd disk (which is now > > connected), I take the 2nd offsite and take back the 1st disk. > > And so on. > > In other words, I use the disks almost as if they where tapes. > > > > Is this possible to get working? > > I did read about backup to multiple disks and symlinks and stuff but > > since I changing the disk I don't know if that's the way to go. > > Can I somehow fake a autochanger function (autochanger with two slots) > > and run some script whenever it change disk? > > Any other suggestions where I can circulate disks in stead of tapes? > > > > As I remember it it was some issues moving between tapes and disks > > (solved with Migrate?) so maybe I could get another disk just for > > inc/diff backups to make it a little simpler. > > I suggest this option: > > - Backup up to local HDD (preferably on at least RAID-1) > - use rsync to mirror those local HDD to external HDD Maybe - have to think about it a little. The basic rsync won't work since then I need a one2one copy and then I would have to have same storage locally as externally, as in 1TB local +2x1TB external (one onsite & one offsite). Maybe if I create a pile of directories and only rsync that part or something like that.
> > This is much easier to setup from a Bacula point of view. I guess so I got pointed to the disk-changer script, will take a look at that and how I might be able to use it. > > Does that help? >
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