0) Document Gaia OS config of existing secondary SMS - /config/active file.
1) Fresh reload of the Secondary SMS to same code version as primary. Assign same secondary SMS Gaia OS config such as hostname, IP address, routes, etc.
2) Go through first time wizard on new system and declare as Secondary SMS; set SIC activation key.
3) Install Jumbo HFA version on secondary matching primary's.
4) Reset SIC on secondary SMS object in SmartConsole and re-establish.
5) Attach permanent license to secondary SMS.
6) Publish changes, install database, and manually sync peer from Management High Availability screen if needed.
Done.
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