Rational ClearCase High Availability Options on Linux for System z
This paper will present two highly available IBM Rational ClearCase architectures which can be setup on Linux for System z. This paper documents a Proof Of Concept (POC), providing detailed instructions for the installation and configuration environment. Values specific to that POC are used. High Availability is a broad term which needs to be defined further in terms of what is the recovery time objective. This paper assumes the definition is a seamless failover to the end user with less that 1 minute outage with zero data loss. Seamless is defined as no action is required to the client for redirection to another system. If a request fails, however, it might need to be reentered.