SE Linux must be disabled.
Network Manager service must be disabled.
If kernel modules that are used by the resources of the MCCS is ONDEMAND type, before resource online the module must be active.
In order to use MirrorDisk resource, you should pre-install DRBD 8.3.13.
For more details about DRBD installation, please refer to“8- Appendix DRBD Installation”of this document.)
In order to use SCSI Reservation Disk resource, you should pre-install sg3_util (yum install sg3_util)