Whitepaper: ReadyNAS FlexRAID Volume Optimization Guide

Whitepaper:
Optimizing Your ReadyNAS® OS Flex-RAID Volumes
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8.3. Sequential Read and Write Performance on SMB Volumes
The figure below shows that the performance of RAID 6 on sequential read operations is strong on all volumes, while RAID 60
produced the best sequential write performance and the best balanced read and write performance. In this test, ReadyTIER
performance was similar to both RAID 6 and RAID 60.
Figure 8.3: Volume Performance and Configuration on ReadyNAS Platform
9. High Tier and Low Tier RAID Performance on iSCSI
We compared a high tier and a low tier and repeated the following tests:
• Random read and write performance
• Sequential read and write performance
The read performance has two cases:
• High Tier. Data is read immediately after it is written.
• Low Tier. Data is read after the data migration is completed.