Hi :) 2011/6/6 Radosław Korzeniewski <rados...@korzeniewski.net>
> 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'll lookup into that when I'll clean up. > >>> >>>> 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* > That's right I don't have that, so I assume I have to prune all the volumes marked as Purged ? Is there a way to truncate data in a volume, cause I wonder if some purged data are in a volume I cannot delete the volume until its marked as prune or purge ? > > - 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. > Cool I'll lookup into that > > >> - 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. > Unfortunately it's ext3 :( But I keep that in mind. > > >> >> Regards, >> >> >> > Regards > > -- > Radosław Korzeniewski > rados...@korzeniewski.net > Thank you ! // Edouard Buschini // Rentabiliweb Telecom
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