EC2 offers a variety of 32-bit and 64-bit instance types. Be sure to choose a size that best meets your requirements:
Amazon charges an additional fee to use an Optimized Instance type. Although this instance type is not necessarily required to utilize the functionality of Provisioned IOPS -- an Elastic Block Storage (EBS) volume type for running persistent, high-performance, and high-availability databases -- it can help communication between EC2 and EBS. Performance benefits can be seen if you're using high amounts of network bandwidth and disk bandwidth at the same time. Additionally, Amazon guarantees that when a Provisioned IOPS volume is attached to an Optimized Instance, the volume will perform within 10% of their provisioned performance 99.9% of the time.
|Instance Type||Optimized Instance Support|
*Although not currently supported, these instance types can support high bandwidth networking and work with Provisioned IOPS.
**These instances are EBS-optimized by default
© 2006-2014 RightScale, Inc. All rights reserved.
RightScale is a registered trademark of RightScale, Inc. All other products and services may be trademarks or servicemarks of their respective owners.