On Friday 09 November 2007 00:59, Mike Seda wrote:
> Hi All,
> I wish to save space on my tapes by changing backup levels in my
> "Monthly" Schedule resource.
>
> My current "Monthly" Schedule resource is:
> Schedule {
> Name = "Monthly"
> Run = Level=Full Pool=Monthly 1st fri at 23:05
> Run = Level=Full Pool=Weekly 2nd-5th fri at 23:05
> Run = Level=Differential Pool=Weekly sat-thu at 23:05
> }
>
> I wish to change the aforementioned resource to:
> Schedule {
> Name = "Monthly"
> Run = Level=Full Pool=Monthly 1st fri at 23:05
> Run = Level=Differential Pool=Weekly 2nd-5th fri at 23:05
> Run = Level=Incremental Pool=Daily sat-thu at 23:05
> }
>
> Btw, with my proposed changes to the backup levels, I plan to use the
> following Volume Retention times while having "Recycle = yes" and
> "AutoPrune = yes" :
> Monthly = 372 days
> Weekly = 37 days
> Daily = 14 days
>
> Do the proposed Schedule and Volume Retention times seem reasonable? I
> added 7 days to each time as a fudge-factor. Any critiques and/or advice
> is welcome.
>
> Also, I have read that Bacula will not backup files that have a ctime
> less than the last backup (of any level, i.e. Full, Differential,
> Incremental). Is that still true with Bacula 2.0.1?
That is true for Differential and Incremental jobs, but not for Full.
> If so, is there anyway to circumvent this?
No other than touching the files or doing a Full backup. If it is critical
data, you could probably do some tricks with Verify jobs which can detect
these changes, but I don't quite see how.
> Basically, will changing the 2nd, 3rd, 4th,
> and 5th Friday backups from Full to Differentials put my data at more of
> a risk if my users perform moves and untars?
Depending on the dates on the files that are moved or detared, they may not be
backed up by a Differential backup.
I'll let others respond to the other questions.
> I feel that if I tell my
> users (one of which is my boss) to touch all files/dirs after a move or
> untar, he will then tell me to go get a quote for some new backup
> software. This is not an option for me as I am a bigtime open-source
> evangelist, and Bacula has served me well thus far. Please advise.
>
> Thx,
> Mike
>
> Kern Sibbald wrote:
> > On Friday 03 November 2006 11:27, Jaap Stolk wrote:
> >> On 11/3/06, Jaap Stolk <[EMAIL PROTECTED]> wrote:
> >>> I was wondering if i could do without the differential backups
> >
> > altogether ?
> >
> >> (in reply to my own post)
> >> I did some more reading and found that the differential backup only
> >> looks at the file date/time, exactly like the incremental backup. so
> >> this is no reason to use a differential backup.
> >
> > Except that doing Differential backups allows you to restore faster and
> > to recycle your Incremental backups faster.
> >
> >> The other thing is a differential backup would reduce the number of
> >> incremental backups i need to scan when restoring files, but since i
> >> backup to a file this doesn't involve manual tape changes, so this is
> >> also not a problem in my case.
> >>
> >> I think i can detect files that are missed in the incremental backup
> >> (because of an old file timestamp) using a verify job, and either
> >> manual or automatically touch these files, so they will be backed up
> >> in the next incremental backup.
> >
> > That's an interesting idea ...
> >
> >> so i have no further questions, unless someone sees a bog problem in my
> >
> > setup.
> >
> >> Kind regards,
> >> Jaap Stolk
> >>
> >> ------------------------------------------------------------------------
> >>- Using Tomcat but need to do more? Need to support web services,
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> >> Geronimo
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> >
> > -------------------------------------------------------------------------
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> > Get stuff done quickly with pre-integrated technology to make your job
> > easier Download IBM WebSphere Application Server v.1.0.1 based on Apache
> > Geronimo
> > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> > _______________________________________________
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