Date: Sun, 3 Oct 2021 09:32:48 +0200 From: Andrea Venturoli <ml@netfence.it> To: freebsd-questions@freebsd.org Subject: Re: zfs q regarding backup strategy Message-ID: <8222f644-bc60-82e5-dcb1-a083fa091683@netfence.it> In-Reply-To: <YVjpdBT%2BrtTYtUvI@ceres.zyxst.net> References: <YVZM1HnPuwIUQpah@ceres.zyxst.net> <ba54a415-da45-e662-73fe-65702c4131e2@holgerdanske.com> <YVcXsF5NFq2abE%2B7@ceres.zyxst.net> <20211001222816.a36e9acbd4e8829aed3afb68@sohara.org> <YVjpdBT%2BrtTYtUvI@ceres.zyxst.net>
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On 10/3/21 1:21 AM, tech-lists wrote:
> A month (30 days) later someone looks for file 2 as it was on day 1, and
> it's not the one they expected on the source. So I have to get it from
> the backup somehow. In order to do this, and given that when I'm looking
> for this I might not know *when* file 2 was deleted from the source, then
> changed and then added
To me, it looks like what you're looking for is a backup system that
keeps track of all these files in a database (e.g. sysutils/bacula).
Problem is, you're not using ZFS snapshots, then.
> do I have to keep every single snapshot?
Yes, for sure.
> If this is the case, then how can I scan through the snapshots
> looking for the right file? there may be thousands of snapshots.
Perhaps something like:
find /{mountpoint}/.zfs/snapshot/ -name "{filename}" ...
> Or can I incorporate or expire the snapshots into the full backup and
> tell it that I want to look back to day 1 and retreive file 2?
Not as far as I know.
bye
av.
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