Which solution meets these requirements?
Select and launch a smaller EC2 instance with an appropriate number of vCPUs.
Configure the CPU cores and threads on the selected EC2 instance during instance launch.
Create a new EC2 instance and ensure multithreading is enabled when configuring the instance details.
Create a new Capacity Reservation and select the appropriate instance type. Launch the instance into this new Capacity Reservation.
Explanations:
Selecting a smaller EC2 instance may reduce the number of vCPUs, but it might also reduce memory, potentially failing to meet the memory requirements for the memory-intensive database workload.
Configuring CPU cores and threads during instance launch allows for adjusting the number of visible vCPUs while maintaining memory, optimizing licensing costs without underutilizing the instance.
Enabling multithreading (simultaneous multithreading or SMT) would increase vCPU count, potentially raising costs, and doesn’t directly address controlling the visible CPU cores for licensing.
Creating a Capacity Reservation ensures instance availability, but it doesn’t control vCPU visibility or licensing costs, nor does it optimize the instance for CPU-based licensing requirements.
If memory serves me right, the answer is:
Configure the CPU cores and threads on the selected EC2 instance during instance launch.