[Pacemaker] RHEL6 and clones: CMAN needed anyway?

[Andreas Mock]

Hi all,

after reading several docs on clusterlabs.org and trying to
understand how all pieces fit together, there is one question
remaining (you know: I understate ;-)):

If I don't want to use any cluster-FS do I really need CMAN
on RHEL6.x and clones or is it enough to let corosync and
pacemaker play together?

Is fencing and fencing agents independent of CMAN?

Best regards
Andreas