Re: [Bobs-devel] complete / incremental backups

[Rene R. <re...@gr...>]

On Wed, 2003-05-21 at 09:44, Arnaud CONCHON wrote:
> Hi,
> I'm new to using this piece of software and there's a question i was asking
> myself. Is it possible to define a day in the week to do a complete backup
> whereas the other days, it will only do incremental backups ?


You will have to keep a "current" backup at all times. That means that
you will need as much diskspace for the "current" backup as you have
files on your server.
If you have 100 GB worth of files you are making backups of, you will
also need at least 100 GB diskspace for the "current" backup. You need
more space to keep incremental backup.

"Current" is always a snapshot of the files at the time of backup.

You cannot make incremental backup without keeping "current" up to date.
"incremental" is nothing but the changes that happen to files in
"current".


>  The reason
> behind this question is that i see my disk space going down more and more
> everyday... So will i have to delete the files manually, or is there a
> proper way to do it? Another thing is when a file is being deleted on
> purpose by a user, will the file be stored on the backup server ??

BOBS has no way of knowing that a user has deleted a file on purpose.
Even if the users delete a file on purpose, they may later find that
they need that file again. That is the purpose of BOBS.


>  Or will
> the file be deleted from the backups after some time? Lots of files will be
> unuseful on the backup server if theses files were meant to be deleted...

You have to delete files manually. The delete feature is not a part of
BOBS yet.

The files are tagged by a number which is like "2003.121" which means
that the files was added to "incremental" in the year 2003 on day 121 of
that year.
I usually delete files by a number of criteria:
An example:
I delete files older than 6 months. Check how much space is available.
If if need more I delete files older than 3 months which are larger than
50 MB. If I still need more space I lower the MB size in steps until I
reach a point where I have enough space.

This should be made a feature in BOBS. I'd welcome any suggestion on
criteria and structure. There are so many ways to single out files for
deletion, and my criteria are most likely not going to match yours. 
That an open invitation to everybody reading this.

Cheers
Rene

> I'm not sure if i'm very clear... :)
> 
> Best Regards.
> 
> --
> Arnaud CONCHON
> ARCOBA
> Administrateur Réseau
> arn...@ar...
> 01.49.74.29.00
> 
> 
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-- 
Rene Rask <re...@gr...>