Hi, Thank you Zdenek
You used "makes sure" phrase in your sentence:
"this makes sure you should have files at least 10 days back as well"

I was refering to that !

So the whole thing is about PV metadata area and not /etc/lvm , am I
correct?

On Mon, Dec 3, 2018 at 3:03 PM Zdenek Kabelac <zkabelac@redhat.com> wrote:

> Dne 01. 12. 18 v 13:44 Far Had napsal(a):
> > How does it _make sure_ that I've backup files younger than 10 days old?
> What
> > if I delete those files?
>
> Hi
>
> Archives in /etc/lvm/archive subdirs are not 'a must have' - they are
> optional
> and purely for admin's pleasure.
>
> So admin can erase them anytime he wants to - but in that case it's
> probably
> more clever to disable archiving in lvm.conf ;) as archiving eats some
> CPU...
>
> lvm2 itself does *only* care about metadata stored in the 'metadata' area
> in
> PV header - where there is also ring-buffer which typically keeps pretty
> long
> history of all metadata modifications - this buffer has these days ~1MiB
> in
> size. So unless your metadata are pretty big - the history can be
> relatively
> easily extracted also out from this place for i.e. recovery purpose.
>
> I must admit I don't understand the  'make sure' part of your question??
> Are you aiming at some particular issue ??
>
> Regards
>
>
> Zdenek
>