Siebel System Admin, Install and Upgrade (MOSC)

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How to migration installation of web server and app server in a single machine for IP 25

edited Jun 24, 2025 4:18PM in Siebel System Admin, Install and Upgrade (MOSC) 5 commentsAnswered ✓

Hi,

We are planning to do a Siebel Upgrade from IP 13 to IP 25.1 in Production.

We have already upgraded our Dev & Test environments by doing a migration installation. SWSE(Web Server),App Server, Gateway Server were on the same machine In Dev & Test.

In Our IP13 Production Environment, we have 2 Web Servers W1 & W2, 4 App Servers A1,A2,A3,A4 and 1 Gateway Server G1.

In the To-Be Architecture for IP 25.1 we would like to de-comission both Web Servers W1 & W2 and instead install Application Interface on app Servers A1 & A2.

As per the bookshelf, "You must perform the migration installation for Siebel Application Interface before you perform the migration installations for any other Siebel CRM server modules. When you do the migration installations for other Siebel Enterprise Server modules, the installer prompts you to provide the host name and installation location for the migrated installation of Siebel Application Interface. Without this information, the migration installations of SiebelGateway, Siebel Server, or other modules cannot complete successfully"

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