I want to implement the fault tolerance in a CentOS environment.EDITScenario: Two different systems connected via network having CentOS 6.0.   What I want: Now I want to setup Fault Tolerance in for both systems. So that even if one machine got any problem my running applications/servers never go down. I found kemari and RDMA tools to implement that in VMs. But I am newbie for this and don't know, from where I do start. I mean what to download, how to configure and how to run the VM by this? Also I didn't found any documentation for beginners.  Please help who is having knowledge about either those technologies  or any other technology to get my Fault Tolerance System.If not in VMs, please give me some idea to implement this task only on two physical machines rather than virtually.
How to configure a Fault Tolerance System in CentOS 6.0
migration