A 1TB gp2 volume is cheaper than an 1TB, 3000 iops io2 volume, and provides nearly-identical characters. Only use io2 if you have a latency sensitive applicati

A 1TB gp2 volume is cheaper than an 1TB, 3000 iops io2 volume, and provides nearly-identical characters. Only use io2 if you have a latency sensitive application or need more than 10,000 iops. Even then you can RAID10 some gp2 volumes together and with enhanced networking get I believe 30k iops out of one instance.