Re: Backup strategy

[On 19 Jan, @ 17:08, Flavio wrote in "[hdup-user] Backup strategy ..."]
> Hi
> 
> I'm planning to use hdup2 as backup tool for our servers. Now I wonder
> how to best implement the backup-strategy I have in mind:
> 
> Most servers, I'd like to keep 2 weeks of information with the lowest
> possible disk-usage. So I'm thinking of doing a weekly every two
> weeks, and a daily in between. Will this work? Will the weekly backup
> include everything, as there is no monthly?

no, you will need the monthly dump as that is the level-0 dump. hdup
will complain if it cannot find such a dump.

What is it exactly what you want? Low disk usage or being able to
restore any file to its most recent state? I think those two goals are
not compatible with each other, so a tradeoff needs to be made.

> If not, how would i best achieve what I want?

I think a better stratery is the following. This will limit the amount
of diskspace used, but it will affect how recent the files in the
backup are.

Make a monthly backup at the start of the month.
Do a weekly (or bi-weekly) dump in between.

This will safe on the daily backups.

On the other hand - getting your extra bytes out of the daily dumps might
not be that productive (as they tend to be small anyway). In that
respect loosing the monthly is understandable, but that is not how it
works.

My (other :) ) advise would be: buy a new hardisk and just do the full cycle;
monthly, weekly, daily on that disk.

grtz Miek