Re: [Xen-users] LVM backed domu with lvm inside

[Sadique Puthen <sputhenp@xxxxxxxxxx>]

jonr@xxxxxxxxxx wrote:
> Hello,
>
> I have a xen box that has a lvm for each of the domU's. I would like 
> to be able to create a vg inside of my domu and put the individual 
> filesystems of the domU on the lv's inside the vg on the domU.
> Is this even possible? 
Yes, this is possible.

IMHO, it's not a good idea to have LVM on both Dom0 and Dom-U. ie, 
Define a Logical Volume as the guest backend and again create vg, lv 
inside the guest.  LVM is enough either in dom0 or domU for the purpose 
of resizing guest volumes.  The reason for my opinion is that LVM has 2% 
performance hit over pysical partitions. So get this hit on both end. So 
I usually define sda1 or sda2 etc.. as my guest backend and create LVM 
inside the guest.  If I need more space, I would add sdb1 too to the 
guest and resize the LVM.
--Sadique
> Has anybody done something similar and have any notes that they took?
>
>
> Thanks for any clue,
>
> Jon
>
>
>
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