On Tue, 2011-04-05 at 18:39 +0200, Luc MAIGNAN wrote: > It is a 6 x Quad-Core server with virtualization support enabled (runs > on RHEL 5) [Please don't top-post; see the Guidelines] Have you enabled multiple cores in your VBox configuration, as per the manual? On the "Processor" tab, you can set how many virtual CPU cores the guest operating systems should see. Starting with version 3.0, VirtualBox supports symmetrical multiprocessing (SMP) and can present up to 32 virtual CPU cores to each virtual machine. You should not, however, configure virtual machines to use more CPU cores than you have available physically. poc -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines