Mailinglist Archive: opensuse (3026 mails)

[Aaron Kulkis <akulkis00@xxxxxxxxxx>]

AleXX® wrote:
> Hi all,
> I am in the need to back up the whole /user and I would like to do
> this by differential backup every night.


> My intended retain schema is 7days, 4 weeks and 12 months.
>
> On sunday I would run a full one (and keep it for 4 weeks) and every
> day I want to run a differential backup.
> Every Month I want to run a full backup too (and keep it for 12 months)


Don't do differentials.
Do a "level 0" (which is to say, a full backup) every Sunday

Then do a "level 5" backup the rest of the days.

That way, to do a complete restoration, your, you only
have to do this:

Restore Sunday's full backup (Level 0)
Restore yesterday's level 5


The problem with differential backups is this
Suppose you have a problem on Friday.
To get a correct restoration, you have to do the following:

Restore Sunday's full backup
Restore Monday's differential
Restore Tuesday's differential
Restore Wednesday's differential
Restore Thursday's differential

Now, suppose, for some reason, that Tuesday's backup
has an error on it....now you're screwed.

> Do you have any suggestion about this?

See above.

> I would like to have an handy too to do this...
>
> Thank You...



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