Backup Central

Hi everybody,

I'm a little bit lost in the backup planification once it exceeds day
after day schedule. I'm backing-up a web server once a day with only
full backups and that works very well, but I'd like to extend this to
something like :

7 full backups for each day of the past week (already in use)
1 full backup 2 weeks old
1 full backup 4 weeks old
1 full backup 8 weeks old
1 full backup 24 weeks old

I've read the documentation but I'm not sure that I do understand
this chapter, so sorry if I'm boring you with something evident.
There are two parameters in conf.pl that do this: $Conf{FullPeriod}
and $Conf{FullKeepCnt}. Would this values be correct for the settings
above ?
$Conf{FullPeriod} = [1,2,4,8,24];
$Conf{FullKeepCnt} = [7,1,1,1,1];

Does anyone have an idea?
Thanks

PS : Thanks to Craig and all the others that contribute to this
wonderful project; you're doing a pretty good job !

Milos Jariabka




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On 08/11 03:22 , Milos Jariabka wrote:
I've read the documentation but I'm not sure that I do understand
this chapter, so sorry if I'm boring you with something evident.
There are two parameters in conf.pl that do this: $Conf{FullPeriod}
and $Conf{FullKeepCnt}. Would this values be correct for the settings
above ?
$Conf{FullPeriod} = [1,2,4,8,24];

$Conf{FullPeriod} is for setting how often you want to do full backups. the
default is 6.97; which is once a week.

$Conf{FullKeepCnt} = [7,1,1,1,1];

this is almost right. if you had your full backups going off once a week
(i.e. '$Conf{FullPeriod} = 6.97;') this would give you:
7 full backups at 1-week intervals
1 full backup at 2 weeks (which would happen to be the same as one of the
first 7 full backups)
1 full backup at 4 weeks (again, would happen to be the same as one of the
first 7 full backups)
1 full backup at 8 weeks
1 full backup at 16 weeks

if your FullPeriod is set to 1 day; substitute 'days' for 'weeks' above.

if you want a backup at 32 weeks, and not at 16 weeks, my understanding is
that you should set:
$Conf{FullKeepCnt} = [7,1,1,1,0,1];

but my experience with all this is less than a few weeks old; so don't take
my word as gospel.

--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com


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Carl Wilhelm Soderstrom writes:

this is almost right. if you had your full backups going off once a week
(i.e. '$Conf{FullPeriod} = 6.97;') this would give you:
7 full backups at 1-week intervals
1 full backup at 2 weeks (which would happen to be the same as one of the
first 7 full backups)
1 full backup at 4 weeks (again, would happen to be the same as one of the
first 7 full backups)
1 full backup at 8 weeks
1 full backup at 16 weeks

if your FullPeriod is set to 1 day; substitute 'days' for 'weeks' above.

if you want a backup at 32 weeks, and not at 16 weeks, my understanding is
that you should set:
$Conf{FullKeepCnt} = [7,1,1,1,0,1];

but my experience with all this is less than a few weeks old; so don't take
my word as gospel.

Nice answer. You're exactly right.

Craig


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