On Thursday 05 September 2002 11:48, Gene Heskett wrote: >On Thursday 05 September 2002 09:29, Thomas Kirk wrote: >>Hey Jim >> >>On Thu, Sep 05, 2002 at 08:01:52AM -0500, Jim Summers wrote: >> >>First of all thanks for the quick answer! :) >> >>> I think you will have to set up multiple disklist / configs to >>> try and force Amanda to do this. >> >>Hmm this seems abit complicated to me as im still trying to grasp >> the basic concepts of amanda? If you could point me towards some >> reading or howto i would be very grateful! >> >>> Amanda herself determines the level and when that level will be >>> done within the dumpcycle. She tries to balance the amount of >>> data backed up each run so as to maximize tape usage. > >Actually, its to equalize tape usage. :-) > >>So what you are telling me is that i can't control wich days to >> do the full backup and which days to do incremental > >Not if you let amanda do it without interference. > >>> Each fs backed up MUST be able to fit on a tape. You need to >>> specify multiple tapes / use of a tape changer would be >>> desireable. >> >>Ok let me get this straight fs here means filesystem ok? > >yes, and to further define it, each "partition" is a filesystem.
And to further clarify, if you use tar, then a subdir of a partition can be a 'filesystem'. I do that here with a 30gb /usr. >> a >> filesystem is per/machine? or is it per time amanda is running? >> So when amanda is running and doing a full backup all the >> filesystems listed in disklist should be able to fit on one >> tape? > >No, each entry's size is limited to one tape's size. With a >changer, amanda can use more than one tape if she needs to because >the current one filled up. In that event, the failed entry in the >disklist will be restarted from scratch on the next tape. > >> Im using the newest beta which will backup to our NAS box with >> 400GB available so i guess its just a question to fool amanda to >> think that im running some big DLT that can have +80GB on one >> tape or so? Is that right? > >No, don't lie to amand about what the tape can hold. In fact, > turn off any compression the drive might have and leave it off > forever, and run the tape-src/tapetype utility after you build > it. It takes a while to run, but then amanda has a very good > idea of the tapes capacity. Enter that output data as the > tapetype spec in your amanda.conf if it doesn't already have one > for your tape. If amanda knows what the tape can hold, the > schedule will probably be adjusted to prevent overflow if it can > be done and stay within that 7 day dumpcycle. > >Amanda will use your favorite compressor if you use the right >'dumptype'. I play mix and match here as some partitions don't >compress well, see the report to see which ones don't. But with > it enabled for about half my system I put 6+ gigs of data on one > DDS-2 tape last night, and had about 1.5 gigs left on that tape. > >With a changer at her disposal, amanda can and will use more than >one tape per run if need be. Enabling that will cause your >magazine reload schedule to be a check it daily operation to make >sure there is enough tapes left for tonight though. -- Cheers, Gene AMD K6-III@500mhz 320M Athlon1600XP@1400mhz 512M 99.14% setiathome rank, not too shabby for a WV hillbilly