Retaining 15 days, 3 months, and 3 years backups

[noki]

Hi, I want to retain something like this:



What is the smartest way to do the Monthly and Yearly backup in Cobian?

I'm doing the backup of a folder with almost 400GB and growing, I must keep several backups of it in several locations (1 disaster-proof NAS, 1 local server, 1 cloud server).

Since it would be too expensive to do it the way the software developer wanted I opted to use Cobian with deferential backups.

The only workaround I thought about was doing 3 tasks:

1. Daily for 3 weeks - Deferential
2. Monthly for 3 months - Full
3. Yearly for 3 years - Full

The only problem with this approach is an over-redundancy when the backups overlap, there is any way to avoid this?

Any ideas?

Thanks!

[cobian]

Does anyone have an idea here?

[ira]

On the monthly and daily you could run a external script of some sort to test if one of the other backups has already been run or when the month or year backups run create files that are tested and deleted by a script on the other backups so they know to skip today's backup. But I see no way to do it totally within Cobian.

[davidsanborn24]

How many cycles you set the retention to is dependent on how much data you want to keep in retention.

[Folkien]

Sorry but I don't understand your question. What do you mean by backup overlap ?