> > I am running amanda-2.4.2p2 succesfully with 2 hosts (1 server, 1 > client). All disklist entries (level 0 dump) fit well on a DDS-4 40GB > using software compression (about 24 GB now).
Great! > > I have only 4 tapes in use and momentarily just 2 (I am > keeping 2 of them as > archival tapes as I am burning some of the data on CDs, and will > return them to the tapecycle as soon as they get done). > > This is how I've set my conf file: > > dumpcycle 7 > runspercycle 2 > tapecycle 2 tapes > > Based on this I'd expected amanda to run just twice every 7 days. > However, amanda still runs everyday. AMANDA runs exactly as often as you tell her to. You might have a cron job that runs amdump every day. To change how often amdump runs, change the cron job. > Is it possible to do this? (if i set a dumpcycle of 30 and > runspercycle of 1, would amanda run just once per month?) > > I am currently forcing level 0 dumps in every run because otherwise > amanda would almost always overwrite the only level 0 dump for a > filesystem. This is the right thing to do, so that you don't overwrite the only level 0 you have of a file system. You can also change dumpcycle to 0 to force level 0 every time. > > Since all lev > 0 dumps are only a few megabytes (< 100 MB), is it > possible to have amanda append these to the end of each tape, thus > leaving the level 0 dumps untouched? Appending to tape is a Bad Idea(tm). Possible problems with tape positioning and media failures make it risky, so it is not directly supported. If you search the archives, there are several messages about using amdump and amflush to accumulate several days' backups on the holding disk, and then write them all to tape in one pass. > > Currently I have this problem because on weekends amanda would run > without being forced to do a lev 0 dump and thus would leave things in > the holding disk that need to be flushed on Monday. That day, I will > be left with only 1 level 0 dump in tape for each filesystem. > dumpcycle 0 and fixing the cron job should help this. I schedule my backups to run at 12:30 am Tuesday through Saturday, with amcheck at 4:00pm Monday through Friday, so I get a warning if I forget to change a tape. > Thanks in advance, > > Fernan > > PS: I know that just getting more tapes would be the ideal solution, > but that is not economically possible in the short term. I'll > appreciate comments on how to make amanda run as tapewise as it can, > given my shortage of tape media. > > -- > > | F e r n a n A g u e r o | B i o i n f o r m a t i c s | > | [EMAIL PROTECTED] | genoma.unsam.edu.ar | >
