On option #2, AMANDA will schedule the backups so that the level 0's are spread out across tapes. You can make this easier by adding the new TAR backup entries one at a time, so that each one gets its first level 0 on a separate run, and making the TAR backups as equal in size as practical. The day after a level 0 on the whole array is probably the right day to do that on.
If you have tape (and time) to spare, you could try this in a separate config, then switch over to it when you're comfortable with how it runs and how you have to restore from it. > -----Original Message----- > From: Matthew Boeckman [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, June 04, 2002 11:29 AM > To: [EMAIL PROTECTED] > Subject: implementation question > > > I've been using amanda for awhile now, loving it. I have 5 > hosts being > backed up, 4 of which are < 18G on L0's and one of which has a 180GB > RAID partition. I have a 15 tape changer with AIT2 tapes. > > The problem is obviously that amanda can't span filesystems, and my > usage on the RAID has now exceeded the size of the tapes. As > I see it I > have two basic options: > > 1. run two seperate config's, one for the clients, and one > for the RAID. > This strikes me as bad for two reasons. First it doesn't > scale once the > RAID itself is too large for a tape (right now it's about 70Gig, with > that plus the L1's of the clients is too big for tape). The other > problem is that I burn two tapes a day, only one of which is > really used. > 2. use GNUtar and excludes with maybe three mountpoints on the RAID, > bkup1 bkup2 and bkup3. Then, ideally, I would somehow force L0's on > alternating patterns so that no L0 of bkup1 ran the same day > as 2 or 3. > I think this is the way to go, as the L1/L2's of this filesystem are > pretty small, but the L0's are ... well.. .huge. > > > My questions: > Is that a fair summary of my options (as well as #3, > buy someone else's > backup software, which isn't an option)? If so, is there a way to > achieve the alternating L0's in option 2 without running > amadmin _daily_ > ? If not, what other options exist, short of hiring some > programmers to > write the "span filesystems" mod for amanda? > > Thanks! > > -- > Matthew Boeckman (816) 777-2160 > Manager - Systems Integration Saepio Technologies > == > == > ...Many say that DOS is the dark side, but actually UNIX is more like > the dark side: It's less likely to find the one way to destroy your > incredibly powerful machine, and more likely to make upper > management choke. > -Lore Sjoberg >
