Hi all,
Customer is running BO4.0 with HA capability on 2 Nodes (I mean two physical servers). The database (SQL express) is running in MSCS as a clustered service, the underlying data file is on storage. Each node has SIA/CMS service running on it and form a BI cluster. Each node also has tomcat as web app. DNS LB was also configured to distribute http request to both nodes. I think it is a very typical HA topology.
Now we're asked to upgrade 4.0 to 4.1 and I know it can be done by in-place upgrade like patching. But in what order ? Should I run upgrade on both servers in parallel or start from one of them and then the other ? How many run I should play to upgrade SIA/CMS services and web application ?
Please share your experience. Thanks