[CentOS] Possible to use multiple disk to bypass I/O wait?

On 06/10/2011 08:17 PM, Emmanuel Noobadmin wrote:
> The irony of it was that I decided to go with qcow2 because I thought
> that would save overheads from an additional LVM layer but provided
> snapshot capabilities too :(

I read somewhere recently that people were complaining abut LVM overhead 
and poor performance, but I've never seen any evidence of it.  Was there 
something that made you think that LVM had significant overhead?