General Purpose SSD (gp2) Volumes
GP2 is the default EBS volume type for Amazon EC2 instances. These volumes are backed by solid-state drives (SSDs) and are suitable for a broad range of transactional workloads, including dev/test environments, low-latency interactive applications, and boot volumes. GP2 is designed to offer single-digit millisecond latencies, deliver a consistent baseline performance of 3 IOPS/GB to a maximum of 10,000 IOPS, and provide up to 160 MB/s of throughput per volume. GP2 volumes smaller than 1 TB can also burst up to 3,000 IOPS. I/O is included in the price of gp2, so you pay only for each GB of storage you provision. GP2 is designed to deliver the provisioned performance 99% of the time. If you need a greater number of IOPS than gp2 can provide, or if you have a workload where low latency is critical or you need better performance consistency, we recommend that you use io1. To maximize the performance of gp2, we