The document compares the IOPS performance of various EBS volume configurations on different EC2 instance types. It shows the results of 4K sequential reads, writes and random reads, writes as well as 32M sequential reads and writes for m1.xlarge, cc2.8xlarge and hi1.4xlarge instance types using different numbers and types of EBS volumes. The tests found that cc2.8xlarge with 8 optimized 100GB vol