Installation
[ALL] installation pacemaker
sudo apt-get install pacemaker
edit /etc/default/corosync and enable corosync (START=yes)
[ONE] generate corosync authkey
sudo corosync-keygen
(this can take a while if there's no enough entropy; download ubuntu iso image on the same machine while generating to speed it up or use keyboard to generate entropy)
copy /etc/corosync/authkey to all servers that will form this cluster (make sure it is owned by root:root and has 400 permissions).
CRM
crm
crm_mon
crmadmin
Kompelette CIB löschen
crmadmin -E