High Availability or HA is a term used in this document to describe the system design protocol and associated implementation that ensures a certain absolute degree of operational continuity during a given measurement period.
This Feature allows two StorTrends iTX (version 2.7 and newer) SAN Heads to be grouped as highly-available cluster nodes for Microsoft initiators. This, together with MPIO DSM for StorTrends will allow deploying solutions with extreme fault tolerance and total availability. This solution provides protection against disk failures, path failures and node failures. In the event of Node failure, the Failover action is automatic and seamless. When the Failed node comes up, it is detected by the stack and is synchronized quickly to bring back redundancy to the setup. Synchronization is very efficient and ensures that only out-of-sync data is resynced.