[CentOS] how to access lvm inside lvm

Fri Apr 29 22:27:27 UTC 2011
John R Pierce <pierce at hogranch.com>

On 04/29/11 3:05 PM, Peter Peltonen wrote:
> I have a centos 5.6 server that has xen domUs installed on their on
> logical volumes. These logical volumes contain their own volume groups
> and again their own logical volumes. I want to
> ...

ugh, and double ugh.   this violates the KISS 'keep it super simple' 
principle, and I can only see the extra layers of complexity leading to 
more frustration.

I would instead run LVM only on dom0, and have your domU's creating file 
systems directly on the virtual devices mapped to said LVs.   if you 
need to grow a file system, you resize the LV from dom0, and then growfs 
in the domU