From: ADSM: Dist Stor Manager on behalf of Henrik Wahlstedt
Look at Vmware consolidated backup, VCB, which is Vmwares prefered
method to backup virtual nodes.
It will probably save you some TSM licenses...

And how TSM handles CPU/mem during backup I wont recommend you to
install a TSM client on all Vmware nodes.

 
If you're not sure, please do not give out incorrect information.
 
TSM licenses by physical processor. If you have a 4-way VMWare server, you have 
to pay for 4 licenses, even if you have 20 VMs on the machine. So yes, you 
should put the TSM client on each VM, and a client on the VMWare host as well.
 
--
Mark Stapleton (mark.s AT evolvingsol DOT com)
Senior consultant