When it comes to running Microsoft Windows Server or Microsoft SQL Server in AWS, there are currently three options regarding licensing:
Simply pay the normal AWS fee for Windows Server instances (on-demand, spot, reserved). These fees are typically more than same-sized instances of other operating systems. See: https://aws.amazon.com/windows/resources/licensing/#launch
Note that there is a minimum $2/hr (~$1500/mo) charge for running dedicated instances, per-region (not including the cost of the instances themselves). This means it will almost certainly be cheaper to just use AWS provided Windows AMI's and pay for the Windows license.
Two BYOL forms will need to be completed on your behalf by the Cloud Team. Please contact at cloud-support@cornell.edu to begin that process.
See the diagram below for setting BYO licensing for Microsoft SQL Server to AWS RDS. The "Licensing Mobility" has already been worked out between Cornell and Microsoft (and AWS) so selecting "bring-your-own-license" and checking the "I acknowledge..." box should be all you need to do.