[linux-lvm] snapshot cow volume location?

[Alistair Coles]

As far as I can tell (using 2.2.01.09) , using lvcreate to create a 
snapshot results in the snapshot being in the same VG as the source. If 
that is correct, is there any way to force the snapshot to use different 
PV's than the source?

Also, is there a reason why snapshot cow volumes cannot be in a 
different VG than the source volume?

Thanks

Alistair Coles