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Data retention

Updated: 14 Feb 2012 | 2 comments
TheGlennDavid's picture
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This issue has been solved. See solution.

Hi all,

What I have
A single folder, with some files in it
A single drive 24 bay autoloader

 

What I want
30 days worth of daily backups (one snapshot perd day)
60 days worth of weekly backups (one snapshot from each of the week outside the 30 day window retained, the rest deleted)
2 years worth of monthly backups (one snapshot from each month outside of the 60 day window, the rest deleted)

yearly backups forever (one snapshot from each year past the 2 year window, the rest deleted).

Example: On December 31st, 2014 I would Have

31 Backups dated from 12/1/12 to 12/31/12
4 Backups dated from 11/1/12 to 11/30/12
22 backups dated from 1/1/11 to 10/1/12
3 backups dated from 1/1/08 to 1/1/10

 

How do I get it?

 

I wonder if I'm just mising something very obvious.  Is there a way to move a particular snaphot or backup to other media on a schedule and then delete other specific backups? Or is there better approach that I'm missing.

Comments

pkh's picture
13
Feb
2012
3 Votes +3
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The best that you can do is

The best that you can do is this: Use 4 media sets with the following settings.

1) Daily - OPP = 30 days.

2) Weekly - OPP - 7 weeks

3) Monthly - OPP - 1 year

4) Yearly - OPP = infinite.

For the Weekly, Monthly & Yearly backups, you will overlap the Daily, Weekly, Monthly backups respectively.  This is the best you can do.  There is no way to do want you want, i.e. keep 30 days of daily + another 30 days on weekly.  

TheGlennDavid's picture
14
Feb
2012
0 Votes 0
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Thanks for the help

Hi (again) pkh,

 

It's pretty furstrating, but it seems you're right!  I've been thinking about your overlap idea and have ended up with this. All the OPP are as you suggested:This involves 4 backup sets and 4 jobs.

1. Daily: Run every day except saturday

2. Weekly: Run every saturday except the 3rd of each month

3. Monthly: Run 3nd Saturday of every month excepting in June 

4, Yearly: Run 3rd Saturday in June every year

 

This gets me everyhing I want, wihout making duplicate bakups, except for the rolling aspect.  

Thanks for the insight phk!!