JSA Deployment Overview
You can install JSA on a single server for small enterprises, or across multiple servers for large enterprise environments.
For maximum performance and scalability, you must install a high-availability (HA) managed host appliance for each system that requires HA protection. For more information about installing or recovering an HA system, see the Juniper Secure Analytics High Availability Guide.
There is a change in the representation of releases for JSA releases later than JSA 2014.8. Starting with JSA 7.3.0, JSA releases are represented as 7.x.x releases. There is no change in the representation of JSA Releases 2014.1 through 2014.8.