SAP HANA Storage Performance — High Throughput & Low Latency

Quick Answer

This scenario asks for two AWS features that together deliver both high throughput and low latency for SAP HANA data volumes, which reflects the fact that HANA's storage performance depends on more than just the volume type alone - the instance's network path to that storage matters just as much. Enabling EBS optimization on the EC2 instance dedicates network bandwidth specifically to EBS traffic, separating it from other network activity on the instance, which removes a source of contention that could otherwise introduce variability into HANA's storage I/O even if the underlying volume itself is fast. Pairing that with EBS io2 Block Express volumes for the HANA data volume addresses the other half of the equation at the storage layer itself, since io2 Block Express is built to deliver very high IOPS with sub-millisecond, consistent latency, which is what a demanding in-memory database workload needs from its persistent storage. The reason both matter together is that a fast volume type connected through a network path that's competing with other traffic can still end up bottlenecked, and conversely, a dedicated network path to a volume type that can't sustain high IOPS doesn't solve the underlying performance problem either. This is a useful pattern to recognize generally: AWS storage performance for demanding databases is often a combination of an instance-level setting, EBS optimization, and a volume-level choice, a high-performance volume type, and questions asking for two features to meet a throughput-and-latency requirement are often testing whether you understand that both layers need to be addressed together.