Whitepaper: ReadyNAS FlexRAID Volume Optimization Guide

Whitepaper:
Optimizing Your ReadyNAS® OS Flex-RAID Volumes
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4. iSCSI RAID Performance
We ran the following tests:
• Random read and write performance
• Sequential read and write performance
4.1. Random Read and Write Performance on iSCSI Volumes
The figure below shows that a RAID 50 volume provides the highest performance for random read operations, while RAID 5
provides the highest random write performance. In this test all RAID configurations provided good performance.
Figure 4.1: Volume Performance Versus RAID Configuration on a ReadyNAS Platform