We’re building a new exciting cluster at work using Linux HA and stuff to make it work magically.
In the olden days of yore RedHat and co were using Pacemaker with the old crm (Cluster Resource Manager / Cluster Relationship Manager, pick one..) tool for cluster management, which was nice. Now it looks like RedHat have removed the crm command from their repositories and have switched to PCS which stands for either Pacemaker/Corosync Configuration System or is the plural of PC (Personal Computers).
This makes searching for anything useful on the Internet quite difficult.
It would have been better to go with a random pronouncable alpha-character string non word, than the stupid PCS acronym, and probably get you some delicious Web 2.0 VC!