Thanks for your response. It's a good reasoning ! But if I have many data : 600 GB for a full and 10 GB modify by day. An incremental it's better ? Because if I have a differential backup I have 10 GB the first day, 20 GB the second day... 40 GB the fourth day... ... no ?
M T W T F S S <- Day I I I I F - - <- Backup 1 2 3 4 0 - - <- Level 10 20 30 40 600 <- GB > Message du 16/04/10 à 17h52 > De : "Luis Paulo" <luis.bar...@gmail.com> > A : in...@voila.fr, "General list for user discussion, questions and support" > <backuppc-users@lists.sourceforge.net> > Copie à : > Objet : Re: [BackupPC-users] Full and Incrementals Backup question > > Better than all 1? In theory, yes > > 1 - On backuppc there is no need to restore level 1 to 3 in order to allow > level 4 restoring. > > 2 - Neither there is the issue that a problem with a lower level previous > incremental backup gets corrupted and invalidate the following backups - > That can not be confused with stating that backuppc is problem free. > > Those are clues to say that all level 1 can be the same of 1,2,3,4. Or not. > > We can say that a backup level 4 will be made against previous level 3, > instead against last full. > > Thus storing less differences (smaller and faster). we may think. > But that's, for sure, when incremental take space of their one, in a > separate file on disk/media. > > With backuppc and the hardlink process, it's not smaller, I think. An > incremental will only create the files that are not on the previous > incremental (*), the rest will already be on the pool, just creates a > hardlink. > > (*) Meaning "An incremental will only create the files that are not on the > pool already". Right? > > So, smaller? I think not. > > Safer? Don't see why. > > Is it faster? Probably, but that depends on how the process work, and I > don't know to answer that. > > Anyone? :) > > Regards > Luis > > PS: Maybe incremental is just here to make people used to "classical" > backups to feel comfortable. :) > > On Fri, Apr 16, 2010 at 1:19 PM, Inno <in...@voila.fr> wrote: > > > Humm... maybe > > IncrLevel = 1,2,3,4 it's bester ? > > > > > > > Message du 09/04/10 à 16h00 > De : "Inno" <in...@voila.fr> > A : "Andrej Žbontar" <andrej.zbon...@atnet.si>, "General list for user > discussion questions and support" <backuppc-users@lists.sourceforge.net> > Copie à : > Objet : Re: [BackupPC-users] Full and Incrementals Backup question > > Oh.. yes... I have not read "IncreLevels". Thanks a lot. > Also... > FullPeriod : 10 (but I force it by crontab on friday night) > FullKeepCnt : 2 > IncrPeriod : 1 > IncrKeepCnt : 8 > IncrLevel : 1, 2, 3 > Blackout on weekend (and during week on 7am to 10 pm) > > That's an example : I am on 30/04. > > DELETE - 09/04 - Level 0 - Friday : Full > DELETE - 12/04 - Level 1 - Monday : Incr - Depends on the level 0 > DELETE - 13/04 - Level 2 - Tuesday : Incr - Depends on the level 1 > DELETE - 14/04 - Level 3 - Wednesday : Incr - Depends on the level 2 > DELETE - 15/04 - Level 4 - Thursday : Incr - Depends on the level 3 > > KEEP - 16/04 - Level 0 - Friday : Full (keep because incr depends it) > KEEP - 19/04 - Level 1 - Monday : Incr - Depends on the level 0 > KEEP - 20/04 - Level 2 - Tuesday : Incr - Depends on the level 1 > KEEP - 21/04 - Level 3 - Wednesday : Incr - Depends on the level 2 > KEEP - 22/04 - Level 4 - Thursday : Incr - Depends on the level 3 > > KEEP - 23/04 - Level 0 - Friday : Full > KEEP - 26/04 - Level 1 - Monday : Incr - Depends on the level 0 > KEEP - 27/04 - Level 2 - Tuesday : Incr - Depends on the level 1 > KEEP - 28/04 - Level 3 - Wednesday : Incr - Depends on the level 2 > KEEP - 29/04 - Level 4 - Thursday : Incr - Depends on the level 3 > KEEP - 30/04 - Level 0 - Friday : Full > > And if I am on 28/04 (for example) I keep all Backup on 09/04 to 15/04) > > That's correct ? (is complicated ^^') > > Thanks a lot :o) > Innop. > > > > > > Message du 09/04/10 à 14h06 > > De : "Andrej Žbontar" <andrej.zbon...@atnet.si> > > A : in...@voila.fr, "General list for user discussion, questions and > > support" <backuppc-users@lists.sourceforge.net> > > Copie à : > > Objet : Re: [BackupPC-users] Full and Incrementals Backup question > > > > Try to read the documentations for* "IncrLevels"*, > > I think it will be much easyer for you to understand the deal about > > incrementals... > > > > ...Level 1 incremental, will back up all the files that changed since > > the last full. > > > > > > Andrej Žbontar > > > > ATNET d.o.o. Koper > > Vojkovo nabrežje 30a > > 6000 Koper > > > > p.p. 251 > > 6001 Koper, SLOVENIJA > > > > GSM : + 386(0)40 435 058 > > Tel.: + 386(0)5 639 7223 > > Fax.: + 386(0)5 662 5893 > > > > DDV ID: SI 95978232 > > > > www.atnet.si > > > > > > > > > > > > On 9.4.2010 13:23, Inno wrote: > > > Thanks. > > > > > > Ok I understand now for Full backup but with incremental I have : > > > > > > In CGI of BackupPC : > > > FullPeriod : 7 > > > FullKeepCnt : 2 > > > IncrPeriod : 1 > > > IncrKeepCnt : 8 > > > > > > 9 - Full - 26/3 > > > 10 - DELETE by NightlyDaemon: incremental - 29/3 > > > 11 - incremental - 30/3 > > > 12 - incremental - 31/3 > > > 13 - incremental - 1/4 > > > 14 - Full - 2/4 > > > 15 - incremental - 4/4 > > > 16 - incremental - 5/4 > > > 17 - incremental - 6/4 > > > 18 - incremental - 7/4 > > > 19 - incremental - 8/4 > > > > > > In this anormal case incremental of 29/3 has been deleted. Also > > > incrementals of 30/3 to 1/4 not run ?? > > > > > > Thanks. > > > > > > > > > > > >> Message du 09/04/10 à 10h15 > > >> De : "Tony Molloy" <tony.mol...@ul.ie> > > >> A : in...@voila.fr, "General list for user discussion, questions and > > >> support" <backuppc-users@lists.sourceforge.net> > > >> Copie à : > > >> Objet : Re: [BackupPC-users] Full and Incrementals Backup question > > >> > > >> > > >> On Friday 09 April 2010 08:30:54 Inno wrote: > > >> > > >>> Hello, > > >>> > > >>> I need some help about incremental and full backup in BackupPC. > > >>> > > >>> Imagine this : > > >>> Full max : 2 > > >>> Incremental max : 8 > > >>> > > >>> 09/04/2010 : Full > > >>> - weekend - > > >>> 12/04/2010 : Incremental > > >>> 13/04/2010 : Incremental > > >>> 14/04/2010 : Incremental > > >>> 15/04/2010 : Incremental > > >>> 16/04/2010 : Full > > >>> - weekend - > > >>> 19/04/2010 : Incremental > > >>> 20/04/2010 : Incremental > > >>> 21/04/2010 : Incremental > > >>> 22/04/2010 : Incremental > > >>> 23/04/2010 : Full > > >>> - weekend - > > >>> > > >>> But if I have 2 Full max, the full on 09/04/2010 is delete and > > >>> incrementals > > >>> of 12/04/2010 to 15/04/2010 their unusable ? If the incremental > > >>> backup of > > >>> 19/04/2010 have a problem, incrementals of 20/04/2010 to 22/04/2010 > > >>> their > > >>> unusable ? > > >>> > > >> Doesn't work like that. > > >> > > >> A full backup is kept as long as any incremental backup depends on it. > > >> This is > > >> no matter what you have "Full Max" set to. So the full of 09/04/2010 > > >> would be > > >> kept until the incrememtal backup of 16/04/2010 is deleted. > > >> > > >> Then both the full of 09/04/2010 and the incremental of 16/04/2010 would > > >> be > > >> deleted together. > > >> > > >> Tony > > >> > > >>> Thanks for your responses. > > >>> Innop. > > >>> > > >>> > > >>> ____________________________________________________ > > >>> > > >>> Voila People a retrouvé les photos que les stars aimeraient oublier sur > > >>> > > >>> http://people.voila.fr/people/mediatheque/dossiers/ces-stars-pour-qui-le-t > > >>> emps-a-bien-fait-les-choses.html > > >>> > > >>> > > >>> > > >>> > > >>> --------------------------------------------------------------------------- > > >>> --- Download Intel® Parallel Studio Eval > > >>> Try the new software tools for yourself. Speed compiling, find bugs > > >>> proactively, and fine-tune applications for parallel performance. > > >>> See why Intel Parallel Studio got high marks during beta. > > >>> http://p.sf.net/sfu/intel-sw-dev > > >>> _______________________________________________ > > >>> BackupPC-users mailing list > > >>> BackupPC-users@lists.sourceforge.net > > >>> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > > >>> Wiki: http://backuppc.wiki.sourceforge.net > > >>> Project: http://backuppc.sourceforge.net/ > > >>> > > >>> > > >> -- > > >> > > >> Chief Technical Officer. Tel: +353 061-202778 > > >> Dept. of Comp. Sci. > > >> University of Limerick. > > >> > > >> > > >> > > >> > > > ____________________________________________________ > > > > > > Voila People a retrouvé les photos que les stars aimeraient oublier sur > > > http://people.voila.fr/people/mediatheque/dossiers/ces-stars-pour-qui-le-temps-a-bien-fait-les-choses.html > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > Download Intel® Parallel Studio Eval > > > Try the new software tools for yourself. Speed compiling, find bugs > > > proactively, and fine-tune applications for parallel performance. > > > See why Intel Parallel Studio got high marks during beta. > > > http://p.sf.net/sfu/intel-sw-dev > > > _______________________________________________ > > > BackupPC-users mailing list > > > BackupPC-users@lists.sourceforge.net > > > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > > > Wiki: http://backuppc.wiki.sourceforge.net > > > Project: http://backuppc.sourceforge.net/ > > > > > > > ____________________________________________________ > > Voila People a retrouvé les photos que les stars aimeraient oublier sur > http://people.voila.fr/people/mediatheque/dossiers/ces-stars-pour-qui-le-temps-a-bien-fait-les-choses.html > > > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > BackupPC-users mailing list > BackupPC-users@lists.sourceforge.net > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: http://backuppc.wiki.sourceforge.net > Project: http://backuppc.sourceforge.net/ > ____________________________________________________ Nouveau ! Partagez vos envies et découvrez les bons plans voyages des internautes sur http://forums.voila.fr/ ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. 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