Kevin Keane writes:
>How is your concurrency configured? If you only have one concurrent job, the a
>ctual dates you have in your schedule aren't related to reality in the first p
>lace. If that is your configuration, your backups aren't going to run on Satur
>day anyway, but on Sunday or whenever the full backups are finished. That mean
>s that the exact time you schedule the differentials doesn't matter. Just sche
>dule them to start five minutes after the fulls (at 22:10), and with a lower p
>riority.
I think you missed the point of my question. That's probably my fault, for
being too verbose.
But my question was, how do I
* schedule a full backup on a specific Friday
* schedule differential backups on Saturdays
* * but not the day immediately after a full backup
?
>-----Original Message-----
>From: hymie! [mailto:hymie AT lactose.homelinux DOT net]
>Sent: Monday, April 25, 2011 9:43 AM
>To: bacula-users AT lists.sourceforge DOT net
>Subject: [Bacula-users] friday vs saturday
>
>
>So I have four machines whose full backups take more than 24 hours.
>As an additional problem, one of those 4 machines takes 12 hours just to do an
> Incremental/Differential backup. (The full backup takes 43
>hours.)
>
>I had the idea that I would assign each machine its own Friday to do a full ba
>ckup, where no other backups would take place. Then on Saturday, each of the
>machines that didn't just do a full backup would do a Differential backup. Fi
>nally, incrementals the rest of the week.
>
>I was just about to set up schedules for these boxes that look something like
>this:
>
>Schedule {
> Name = "1stFridayFull"
> Run = Full 1st fri at 22:05
> Run = Differential 2nd-5th sat at 22:05
> Run = Incremental sun-thu at 22:05
>}
>Schedule {
> Name = "2ndFridayFull"
> Run = Full 2nd fri at 22:05
> Run = Differential 1st sat at 22:05
> Run = Differential 3nd-5th sat at 22:05
> Run = Incremental sun-thu at 22:05
>}
>
>But then I realized -- sometimes, the day after the 1st Friday is the 2nd Satu
>rday.
>
>(caution: monospaced font ahead)
> October 2011
>Su Mo Tu We Th Fr Sa
> 1
> 2 3 4 5 6 7 8
> 9 10 11 12 13 14 15
>16 17 18 19 20 21 22
>23 24 25 26 27 28 29
>30 31
>
>So it seems that, on Fri 7 October, my 1stFriFull machine will do a full backu
>p; on Sat 8 October, that same machine will do a Differential backup.
>
>Meanwhile, my 2ndFriFull machine will do a Differential on Sat 1 October, incr
>ementals during the week, nothing at all on the 7th or 8th, more incrementals,
> before finally doing a Full backup on the 14th...
>again followed immediately by a Differential backup on the 15th.
>
>Is there a way to avoid this problem and accomplish what I want to accomplish?
> The only thing that comes to mind is with unusual time math, such as schedul
>eing my Differential backups for Friday at 46:05; but I doubt that Bacula supp
>orts this.
>
>--hymie! http://lactose.homelinux.net/~hymie hymie AT lactose.homelinux
>DOT net
>------------------------------------------------------------------------------
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