Hi,

Arnold Krille wrote on 2011-11-25 10:31:30 +0100 [Re: [BackupPC-users] Force 
full backup on weekend]:
> On Friday 25 November 2011 09:57:23 Müfit Eribol wrote:
> > 
> > Is it possible to force BackupPC to perform the full backup on a certain
> > day of week, say on Sunday. During the workdays, full backup of our
> > document management system chokes up the resources.
> 
> Thats what blackout periods are for.

well, no. That's what cron jobs are for. This question is asked on a regular
basis. There should be plenty of good answers available.

> They let the backups only run outside work hours unless the backup is very
> important because the last backup is far to old.

That is also wrong, for two reasons:

1.) Blackouts are ignored for hosts according to consecutive good and failed
    pings. The age of the preceeding successful backup is *not* factored into
    the decision.

2.) Backups will not be *started* within the blackout window (if applicable).
    Once they are running, they will be finished, regardless of blackout
    configuration. A long running full backup may well run into your work
    hours if it is started late enough in the backup window.

> But you can't distinguish between full and inc backups with blackout periods. 

That, at least, is true, and is the best example why blackout periods are
*not* going to be the solution :-).

> The only solution there is to once log in on the weekend and schedule a full 
> backup by hand. The following weeks, the incremental of 7 will again be on a 
> weekend.

Yes. Until something unexpected happens.

Regards,
Holger

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