I am in the initial stages of planning an upgrade for our ArcGIS Server environment.
This is what we currently have:
- ArcGIS 10.2.1 for Server (10.2.3497)
- IIS Web Adaptor 10.2.1
- Highly available (HA) environment: Each "Site" is supported by 2 servers, and server configuration files are stored on a shared network drive.
- Servers are also behind a load balancer. So the network traffic is load balanced prior to reaching the server, and then the web-adaptors also control rest service traffic internally.
We would like to upgrade to 10.3.1 on the same existing servers, with the same basic settings. Is there any available guidance to help plan this out? We would like to perform the upgrade with minimal downtime for the users.