A transit agency archives large sequential video files on an EC2-attached volume where throughput matters more than tiny random IOPS. Which EBS type is appropriate?
Select an answer to reveal the explanation.
Short Explanation
Big sequential video loves a throughput firehose—st1 HDD is built for that stream. Burning io2 on pure sequential archives is usually overkill. Match HDD versus SSD to how the bytes are read.
Full Explanation
Amazon EBS Throughput Optimized HDD (st1) is intended for large, sequential workloads such as video archives where throughput dominates over low-latency random IOPS. Provisioned IOPS SSD is typically reserved for transactional latency-sensitive disks. Separating archive data onto an appropriate volume type improves performance and cost alignment. sc1 is colder/archival HDD and is not the first choice for latency-critical random DB indexes.