On 2019-12-13 15:18, Josh Fisher wrote:
I do something similar, only monthly copies, rather than weekly. I do
not use differential backups at all, but rather quarterly fulls, monthly
virtual fulls in between quarterlies, and daily incrementals. A monthly
Copy job makes copies of the virtual fulls for storage in an on-site
fire safe, and another quarterly Copy job makes quarterly copies for
off-site storage.
The amount of storage needed depends on the granularity needed. I
recycle the monthly virtual fulls after 1 year. The quarterly fulls and
copies are kept for 3 years, with the year-end quarterly and its copy
kept for 10 years. This gives a tiered granularity, daily for the past
30 days, monthly for the past year, quarterly for 2 - 3 years, and
yearly for 3 - 10 years.
If you are going to have weekly restore points, then you should
definitely look into using base jobs. Weekly restore points will
necessarily use a lot of media, but base jobs would dramatically reduce
the backup size.
I'm not sure I understand what you are suggesting.
I thought about doing a VirtualFull before copying, but that's going to
take a lot of space on the NAS (space I do not have, unless I
drastically reduce retention period).
I fail to understand the part about base job: in the manual it's
suggested that it's useful when you have several almost identical
datasets (like "100 nearly identical Windows or Linux machine"), but
that's not my case (for the curious, I have one FreeBSD, one CentOS and
one Windows). So I guess it won't apply to my case: it would just be a
4th level after Inc/Diff/Full.
Or are you suggesting using them in some other way?
> If you are not concerned with archival and only need restoration to
> current state, then weekly virtual fulls along with weekly copies might
> be best, recycling them as often as needed based on available media.
This last sentence get me curious.
Are you saying:
_ make a virtualfull on the NAS;
_ copy the virtualfull to disk;
_ purge the virtualfull (so that restores from the NAS will behave as if
nothing has happened)?
Is this possible? Automatizable?
bye & Thanks
av.
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