IOMeter is a new addition to the NAS results. It is an I/O subsystem measurement and characteristic tool for single and clustered systems initially designed by Intel.

Iometer is both a workload generator (that is, it performs I/O operations in order to stress the system) and a measurement tool (that is, it examines and records the performance of its I/O operations and their impact on the system). It can be configured to emulate the disk or network I/O load of any program or benchmark, or can be used to generate entirely synthetic I/O loads. It can generate and measure loads on single or multiple (networked) systems.

I configured IOMeter to create a 1GB file on the target device, DS209, and it will pull the performance of 5 minutes and report back the average transfer rate for various block size recordings. The results are 100% sequential; in the future this will be expanded to include random results.

The IOMeter shows RAID 0 taking a small lead over JBOD and RAID 1. At most the difference is around 5MB/s which makes it a fairly small difference. The difference between read and write performance is also fairly small, no more than 10MB/s with the 32K transfer size and as little as 1 or 2MB/s,

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14