Hello, W dniu 6 czerwca 2011 13:57 użytkownik Buschini Edouard <m...@ijaal.net>napisał:
> Hello Radoslaw > > Thank you for your answer. > > I have to more questions because I discover a new command in Bconsole : > "Prune" > > To clean I use set the retention file at 0 days then I log in to Bconsole > and "prune client=my_client" after that I select "Files" and finaly 'yes'. > Do this action trucate all data associate to my_client ? I've got 115 > critical server to backup, I don't want to mess this up :) > > Pruning files means that you delete catalog database records about backuped files. It doesn't mean that you reclaim space allocated by a volume. If you want to reclaim a space allocated by volume then you have to purge a volume with proper action on purge setup. > 2011/6/6 Radosław Korzeniewski <rados...@korzeniewski.net> > >> Hello, >> >> 2011/6/6 Buschini Edouard <m...@ijaal.net> >> >>> But today we have a big problem, we didn't anticipate a growing like >>> that, on our FS we are at 97% of space used. It's very problematic. And >>> since 1 week I'm working on free more space but it's very complicated with >>> Bacula. >>> >> >> If you are doing a backup to disk (filesystem) then you can simply delete >> oldest/not required volume in bacula and rm it from filesystem. >> > > I would, but datas from every Client are in the volume, so I cannot simply > delete the volume, therefor we have a rotate of 4Go volumes. > You can migrate some clients/jobs with Migration Job Bacula feature or do it manually by bcopy utility. But you have to have additional space. > >> >>> I've search every where but I didn't find any exploitable answers so I'm >>> asking here. >>> Do you have a prefered method to do the following task : >>> >>> Purge then Prune (I'm on auto-prune) then Truncate a volume for a client >>> ? >>> >> >> There are "best practice" for optimal volume management when you use >> filesystem based volumes: >> - use 1 job / volume >> > > That is a good Idea ! I noted it :) > > - use action on purge = truncate >> > > Already activated. > But is your volumes truncated by a purge command? Have you got in your logs something like this: 05-Jun 23:05 mars-dir JobId 0: 3307 Issuing autochanger "unload slot 20, drive 0" command. 05-Jun 23:05 mars-dir JobId 0: 3304 Issuing autochanger "load slot 35, drive 0" command. 05-Jun 23:05 mars-dir JobId 0: 3305 Autochanger "load slot 35, drive 0", status is OK. 05-Jun 23:05 mars-dir JobId 0: 3000 OK label. VolBytes=187 DVD=0 Volume="00023" Device="FileStorageDrv0" (/bacula/tapes/drive0) 05-Jun 23:05 mars-dir JobId 0: *The volume "00023" has been truncated* - adjust your retention policy and backup schedule (more Incr, less Full) >> > > That's why we have to rethink all the stategy. > Check BaseJobs feature. It provides file level deduplication if proper deployed. > - use compression on client if you have enough computing power >> > > We have, around 80-90% data reduction. > Great... > > - use filesystem level compression on storage daemon >> > > I don't know about it ? What's that ? > If you use ZFS or btrfs (i believe others fs can do compression too) you can enable block level transparent compression. These filesystems provides a block level deduplication too, but current Bacula volume format limit fs deduplication usage. Remember, if you perform a data compression on client do not enable fs compression on storage daemon. > > Regards, > > //Edouard Buschini > //Rentabiliweb Telecom - www.rentabiliweb.org > Regards -- Radosław Korzeniewski rados...@korzeniewski.net
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