Different schedules for the same folder- Data Usage?

ReadyNAS Replicate simplifies the replication of that data to another ReadyNAS whether the two systems are on the same LAN or whether they are a world apart.

Different schedules for the same folder- Data Usage?

Postby depasseg » Fri Jan 20, 2012 8:17 pm

Suppose I have a pictures folder that is 250GB and I want to be able to keep hourly backups for the previous 2 days. I also want to keep daily backups for 2 weeks. And weekly backups for the past year. Is there any efficiency/de-dupe across those scheduled tasks? Or will my destination have 3 baseline copies of the 250GB and then the corresponding deltas?

Thanks,
Greg
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Re: Different schedules for the same folder- Data Usage?

Postby OOM-9 » Sun Jan 22, 2012 11:24 pm

This is a rough outline on what I think you may like:

1) hourly per 2 days = backup - 48 revisions
2) daily per 2 weeks = backup - 24 revisions
3) weekly per year = backup - 52 revisions

The Replicate revisions allow the backup to take place and step back to a previous revisions pretty efficient. It will only have the block change in the revision so if there is a 100MB file that was transferred and there was 1MB that was change the revision will have the change of 1MB. The disk space that will be taken is 101MB. The original 100MB and the change of 1MB.

I currently does not have any "de-duping" assuming that is de-duplication. It maintains the revisions of its own backups, so you will run into the three baseline copies. I hope the revisions give you any idea for how to plain your backup.
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Re: Different schedules for the same folder- Data Usage?

Postby depasseg » Mon Jan 23, 2012 5:21 am

That's what I was afraid of. Attached is an image that is much more intuitive, space efficient, and easier to manage. It would be nice to see something like this in a future release.

Image
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