Sun Java Communications Suite 5 Deployment Planning Guide

Messaging Server Disk Throughput

Disk throughput is the amount of data that your system can transfer from memory to disk and from disk to memory. The rate at which this data can be transferred is critical to the performance of Messaging Server. To create efficiencies in your system’s disk throughput:

You want to measure disk I/O in terms of IOPS (total I/O operations per second) not bandwidth. You need to measure the number of unique disk transactions the system can handle with a very low response time (less than 10 milliseconds).