No of AppServers under an instance

[Se Ravin]

Hi All,
Is there any limit for the number of application
server that can be created under one instance of WebSphere?

[Balbir Singh]

Hello,
Well practically it all depends on the hardware that you are using, i mean no of cupu's, etc (remember each app server is running in its own jvm). Last week the IBM guys told us that for one application server we require minimum 4 cpu's, so for any clone/appserver u require +4 cpu's.
Check these two links:
Link 1

Link2

I hope it helps.