Set up daily/monthly backup configuration

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Set up daily/monthly backup configuration

Veeam Logoby esassaman » Tue Jul 10, 2018 10:04 pm

I'm currently configured to keep backups for the past 21 days and scheduled to do active full backups every month. My understanding is that eventually the old full backups + chain will be removed when my most current chain covers the retension period. So basically you will always be able to restore backups equalling at least the number you set for the retension period, but possibly not much futher back, is that correct? Since those old daily/incremental backups keep getting automatically cleaned up as time goes on?

What I'd really like is to keep just those montly full backups for, say, 1 year. Do I have to do that manually, via standalone full backup? Or do I just set my retension period for 365 points, and since I'm doing active full monthly backups, they will all eventually be rebuilt with the incrementals and all the incrementals deleted, but the active fulls saved? Or will it keep the active fulls + all incrementals so that I can restore to any particular day of the year? Which I don't really want, hm. It's a bit confusing because all the documentation uses very small retension periods as examples. But what if your retension period is much larger than your montly active full backup cycle?

So ideally I'd like daily backups going back at least a month then monthly full backups going back a year. How do I set that up?
esassaman
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Re: Set up daily/monthly backup configuration

Veeam Logoby PTide » Wed Jul 11, 2018 11:42 am

My understanding is that eventually the old full backups + chain will be removed when my most current chain covers the retension period.

That's correct.

So basically you will always be able to restore backups equalling at least the number you set for the retension period, but possibly not much futher back, is that correct?

That's correct. In your case it is possible that you have the following backup chain: F - (20 incrementals) - F - (19 incrementals). In this case if one more incremental is generated the old chain will be deleted. But until that you can restore up to 41 days back.

Do I have to do that manually, via standalone full backup?

Yes, you can do it that way. You can also use VBR backup copy job with GFS retention enabled.

But what if your retension period is much larger than your montly active full backup cycle?

Then the oldest backup chains will be pruned as soon as the new chain meets retention requirements. In your example with 365 points retention and monthly fulls you'll have something like that:

F - (month of incrementals minus 1 day) - F - (month of incrementals minus 1 day) - ... and so on until the chain hits 365 restore points in total.

After that, the oldest piece of the chain will be pruned as soon as there are enough restore points in the newest part of the chain to comply with retention settings.

Thanks
PTide
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