How to software upgrage with Stratus ftServer?

Posted by Background-Attempt55@reddit | sysadmin | View on Reddit | 2 comments

A year or so ago we had a Stratus ftServer installed for high availability. Now we need to upgrade the application that it's serving. We got about 10 minutes of training on the whole setup, and the integrator is long gone. I simply want to isolate one of the cpu enclosures, upgrade the software, bring it back online, and have the other server "catch up" to the upgrade, so they become one upgraded logical device with zero downtime. I can't find a step by step on how to do this anywhere. Does anyone have experience with this?