We are planning to have replicas between different hardware appliances model, is this scenario supported?
I cannot make specific recommendations for you without some sort of site study....however, using new appliance replicas to 'leapfrog' your way one-at-a-time to a full upgrade, and eventual replica promotion/demotion of an old primary, is a good way to do an upgrade fairly seamlessly and is one of the scenarios we commonly recommend.tl;dr: yes it sounds like a good plan
Yes... the idea of a bundled OS with AM embedded is that instances (a primary or a replica is an 'instance') can be on any supported platform mixed...as long as the hardware is not out of support (too old) but even then, if it is installed and running, it is supported and won't affect the Authentication Software.
Actually we are planning to migrate our authentication manager from old hardware appliance(out of support) to new appliances (A130 Dell).
We are going to move with the following scenario.
Add new appliances replica to the primary RSA AM server (old appliances) and then promote the new replica (new appliance) as primary and kill the actual primary and replica servers running on the old physical appliances.
Do you recommend this migration scenario?
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