Architects' Tech Alliance

Aug 18, 2018 · Fundamentals

Understanding Disk I/O: From Read/Write Basics to RAID IOPS Calculations

This article comprehensively explains disk storage fundamentals—including read/write operations, random versus sequential access, queue and burst modes, IO size variability, IOPS metrics, RAID performance penalties, and response‑time behavior—providing practical formulas and guidelines for evaluating storage systems.