In this white paper "Ins and Outs of IOPS", VKernel (now part of Quest) Senior Systems Engineer Brad Bonn discusses the strengths and weaknesses of using IOPS as a measure of storage performance.
In Brad's experience, disk performance seems to have traditionally been measured in how many acronyms you could list as present in a solution. In filling the need for better metrics on storage performance, IOPS has become a commonplace term in determining shared storage capabilities. In this white paper, Brad discusses the benefits and pitfalls of focusing on IOPS, and how storage I/Ois an often over-simplified topic. He provides a deep dive into:
- Shared storage fundamentals
- Links in the chain of storage
- IOPS as a measurement of disk I/O
- Making the most of IOPS