Hi 1/ About the return of quorum disk functionnality : is it mandatory to configure it, or is it possible to run the CS4 U4 without it in a first step ? (this question only to know how to manage eventual update from U2 (currently in production without quorum disk configured) to U4 ) 2/ is there a beta documentation on CS4 U4 download-able somewhere ? Thanks Alain -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster