RE: SLES 11 SP4: can't mount btrfs

["Lentes, Bernd" <bernd.lentes@helmholtz-muenchen.de>]

> -----Original Message-----
> From: linux-btrfs-owner@vger.kernel.org [mailto:linux-btrfs-
> owner@vger.kernel.org] On Behalf Of Lentes, Bernd
> Sent: Friday, October 20, 2017 7:26 PM
> To: Btrfs ML <linux-btrfs@vger.kernel.org>
> Subject: RE: SLES 11 SP4: can't mount btrfs
>
>
> > -----Original Message-----
> > From: Andrei Borzenkov [mailto:arvidjaar@gmail.com]
> > Sent: Friday, October 20, 2017 6:09 AM
> > To: Chris Murphy <lists@colorremedies.com>; Lentes, Bernd
> > <bernd.lentes@helmholtz-muenchen.de>
> > Cc: Btrfs ML <linux-btrfs@vger.kernel.org>
> > Subject: Re: SLES 11 SP4: can't mount btrfs
> >
>
> Hi Andrei,
>
> thanks for that info. So I will not waste my time and restore from a
> backup.
> Or fresh installation with SLES 12 SP3 on my two cluster nodes, because
> SLES
> 11 SP4 is pretty old and support ends in beginning of 2019.
> I also found the culprit for the disaster: the battery from the 
> write-cache
> of the RAID-Controller was empty, I ordered a new one.
>

Is it generally possible to restore a btrfs partition from a tape backup ?
I'm just starting, and I'm asking myself. What is about the subvolumes ?
This information isn't stored in files, but in the fs ? This is not on a 
file-based backup on a tape.

Bernd
 

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