text: **Availability**
  Availability is a measure of the time that a Content Manager OnDemand server or process 
  functions normally, and a measure of the time that the recovery process requires after a 
  component failure. It is the downtime (unavailability) that defines system availability. 
  Availability is the amount of system uptime when the system is fully functional and accessible 
  by all users. 
  
  Availability requires that the system provides a degree of redundancy to eliminate single 
  points of failure (SPOFs). The greater the redundancy that is provided, the higher the 
  availability of the system. A single physical machine is still a SPOF. For this reason, a high 
  availability system topology typically involves horizontal scaling and redundancy across 
  multiple machines. 