how to deploy a redundant jts server for floating licenses
Accepted answer
I found this answer: https://jazz.net/forum/questions/67319/jts-connect-to-multiple-jts-floating-license-servers
I would however want to mention that I am not sure if that is not violating the license terms.
You have to be able to prove that you have only used the licenses you have purchased. I an not sure if this is a valid scenario e.g. if the first license server does not have a license, does that mean that JTS will ask the second or third if there is still a license? In that case you would end up having three times the number of licenses available? If that would be the case, you would definitely violate the license agreements. I think you should consider to contact your local IBM team to make sure you don't violate any legal binding contracts. I have send a question to product management to be able to answer here.
If you want to make sure not to violate any license, you can set up the license server as cold or hot standby and fail over to the standby if the primary goes down.
Token Licensing uses FlexLM and that supports a redundant server triad.