Fedora xen - May 2006 - FC5, Xen & LVM

Hi,

I''m only trying to see if I got the idea. Right now, I''ve a
physical
machine, with FC5 and one FC5 guest running. I''m using a file as VBD
for
the guest, and want to know exactly how the LVM stuff works on Xen.
I''ve
a spare 40Gb partition, so imagine I create a LVM volume on that 
partition and then I split the space into 3 logical volumes. As I need 
to install 3 VMs on the machine, will I be able to easily resize the 
partitions, so for example if suddenly I need 10Gb on one of the VMs I 
can "stole" that Gbs of other VM?

Thanks for any reply, as I''m a little confused!

If you need to reduce the size of one of your logical volumes being  
used for a VM in order to give it to another VM, you''ll need to  
shrink the filesystem inside that VM first. That is supposed to be  
possible, but it could get tricky, so it seems like a better idea to  
me to only assign as you need to, and not start off assigning all  
your LVM space to your VMs just because it''s there.

On May 8, 2006, at 11:34 AM, Ignacio Verona wrote:
> Hi,
>
> I''m only trying to see if I got the idea. Right now, I''ve
a
> physical machine, with FC5 and one FC5 guest running. I''m using a
> file as VBD for the guest, and want to know exactly how the LVM  
> stuff works on Xen. I''ve a spare 40Gb partition, so imagine I  
> create a LVM volume on that partition and then I split the space  
> into 3 logical volumes. As I need to install 3 VMs on the machine,  
> will I be able to easily resize the partitions, so for example if  
> suddenly I need 10Gb on one of the VMs I can "stole" that Gbs of
> other VM?
>
> Thanks for any reply, as I''m a little confused!
>
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