[CentOS] Best practice preparing for disk restoring system

Wed Nov 18 13:01:47 UTC 2020
J Martin Rushton <martinrushton56 at btinternet.com>

Thanks for that.  I only picked up on rear this morning, I suppose if 
you don't go looking for it you'll never find it.  A combination of the 
paper Site Management Guide and the nightly disk summary have worked for 
over 20 years on *NIX!  VMS before that was totally different, but we 
still kept paper copies of configuration.

On 18/11/2020 12:47, Felix Kölzow wrote:
>> What I've done in the past is before the nightly backup write a small
>> file to the root of each filesystem giving disk geometries.  You can
>> then use any recovery DVD to partition and reload the OS.  If rear can
>> do this for me it would be __much__ neater!
> According to rear webpage: https://relax-and-recover.org/about/
> Extensive disk layout implementation, incl.
>   * HWRAID (HP SmartArray)
>   * SWRAID
>   * LVM
>   * multipathing
>   * DRBD
>   * iSCSI
>   * LUKS (encrypted partitions and filesystems)
> I personally used rear to restore lvm volume groups and several logical
> volumes with success.
> I will test a more complicated layout until the end of this year and can
> let you know about the findings.
> Regards,
> Felix
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J Martin Rushton MBCS