SQL server 2012 R2 licensing for active and passive SQL instance

Dear Team,

I have 3 Application server where SQL 2012 R2 enterprise was installed locally but not in use.

1) 1 Application server was pointing to remote datbase instance on other server

2) Other 2 were not at all using local or remote SQL instance

Here during implementation we forgot to uninstall the unused SQL installation on application server.

Here licensing compliance will be considered on number of SQL installation on each server or based on active or passive SQL instance use?

Please  reply.

Kamlesh Ambre

kamlesh