Hi, > On 1/19/2006 12:08 PM, Ralf Gross wrote: >> I want to backup 2 of our server to tape (AIT-2, 50GB native, 65-70GB >> compressed, TLS-4210 12 slot autochanger). bacula 1.36.3 (debian sarge, >> maybe I'll build bacula 1.38.4 from source...) is running and I'm >> already able to backup to tape. > > First, upgrade to 1.38.whatever-is-current.
I'd like to stay with the debian package, but it seems to take some more time before a new version will be released. I consider building bacula from source... > Using volumes from more than one pool in one autochanger is not > supported with 1.36, and you will probably run into problems sooner or > later. Hm, you mean I can use only one pool per changer in 1.36.3? Ok, it seems I have to build bacula from source. >> Server 1: >> * ~55GB data >> * full backup each Sunday 6am >> * no inc/diff backup >> * 2 tapes/slots for 2 backups/weeks >> >> Server 2: >> * ~190GB data (takes 10 hours and more...) >> * monthly backup at the first Saturday 8pm of the new month, this >> should >> be archived for 2 years >> * regular full backup each Friday at 7pm, incr. backup Moday to >> Thursday >> at 7pm >> >> Because I'm only rarely at the place where the autochanger is located, I >> can't change the tapes every week. My goal is to change only the archive >> tapes once a month and - if possible - leave/reuse the other tapes. >> >> I'm not quite sure how to setup bacula to achieve this. Should I really >> use 2 differnt jobs and differnt pools for the regular/archive backup of >> server 2? > > One job per each combination of client and fileset. You set the levels > in the schedule. See the manual for more information. That would result in the 3 jobs I described above. >> I'd create a pool with 2 tapes for server 1, and a pool with 3 tapes for >> the archive job. Thus 7 tapes are left for the regular jobs. But the 2 >> regular full backups already need 6 tapes, thus only 1 tape is left for >> the incr. job. > > Determining the right strategy is, obviously, up to you. (You wouldn't > be the first to discover that your autochanger doesn't fit your needs, > though.) At the moment, tapes are the only way to archive data and put them into a safe here. 200GB+ disk are still more expensive and need more space than tapes. > Apart from that, I don't exactly understand why you make a distinction > between archive and regular jobs. The simplest solution is to keep the > full backups as long as you need them, and have the differential and > incremental jobs go to pools that cycle more quickly. I want to keep the monthly archive tapes for 2 years. But the regular full backup should be kept only 14 days. I want to change the tapes only one time a month. Thus the regular backup must be overwritten more frequently and I think I have to use 2 different jobs/pools to achieve that. > In that case, you could leave the diff/incr volumes in the changer and > only remove the full backup volumes. Hm, you would use 2 separate pools for the full and inrc. volumes, take out the monthly tape and put it in the safe? How can I be sure the monthly tape is not overwritten by a regular job if I forget to take it out? (I'm sure this is covered by the manual...). The focus should be - as mentioned above - to change the archive tapes only once a month. >> I'm also very unsure about the right settings for >> retention/prune/purge/recycle. > > That's something you should look up in the manual, then - I couldn't > explain it much differently. Ok. >> Maybe I'm a just bit to confused at the moment ;) > > Maybe... start with a simple experimental setup, with a small fileset, > disk based volumes, and run your backups multiple times a day. This > would allow you to observer the volume management live. That's a good idea. Is it possible to simulate the changer behavior with slots in any way (I guess not)? Ralf ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
