On 12 Jan 2011, at 11:19, Valerio Pachera wrote:
> Could you please help me understunding how shedule works?
>
> Analize this example from the wiki:
>
> Schedule {
> Name = "ScheduleTest"
> Run = Full 1st sun at 23:05
> Run = Differential 2nd-5th sun at 23:05
> Run = Incremental mon-sat at 23:05
> }
>
> QUESTION 1: '1st' refear to the backup number (the first backup) or
> the day of the week? or the day of the month?
>
> I read the first line like:
> "The first backup has to be full (so it doesn't matter the day it
> begin). Each sunday do a full backup"
>
> The second line...:
> "Second and fifth backup has to be Differential" what about 'sun' ????
>
> The third line:
> "Make an incremental backup from monday to satturday"
>
> I think that the second and third line overlap:
> if sunday we make a full backup, monday (2th) should be done
> differential (second line) but also incremental (third line).
> QUESTION 2:I guess the first match is used and the other ignored (like
> in iptables rules).
>
> QUESTION 3: what means 'sun' ? If it's sunday, why is it used in
> second line if it's already specified in first line?
>
> QUESTION 4: why is it usefull to make differential backups instead of
> all incremental backup?
>
> QUESTION 5: I read bacula user manual but found nothing about shedule
> sintax. If you have any link, please paste it here.
>
> Thank you.
>
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> Schedule {
> Name = "ScheduleTest"
> Run = Full 1st sun at 23:05
Full backup on the first Sunday of the Month at 23:05
> Run = Differential 2nd-5th sun at 23:05
Differential backup on the 2nd, 3rd, 4th, and 5th Sunday at 23:05
> Run = Incremental mon-sat at 23:05
Incremental Backup on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday at
23:05
This means that for example on the 1st Sunday of the Month you'll run a full
backup and an incremental together.. unless you configure against duplicates.
A differential backup is everything that's changed since the last FULL
backup... Thus is you want to restore you could be using a FULL and the
Differential, rather than FULL, Incremental, Incremental, Incremental....
Cheers,
---Guy
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