8K random read and write speed is not tested for consumer use, but this is an important aspect of performance for enterprise environments. With several different workloads relying heavily upon 8K performance, we include this as standard with each evaluation. Many of our Server Emulations below will also test 8K performance with various mixed read/write workloads.
The eight-drive RAID array averages a tremendous 1,458 IOPS average at QD256, followed closely by the eight-drive RAID 5 array with 1,374 IOPS. The four-drive RAID 0 array tops out at QD256 with 778 IOPS, and is slightly bested by the four-drive RAID 5 with 784 IOPS.
The Toshiba eight-drive RAID 0 array provides 1,499 IOPS at QD256, and the smaller RAID 0 array musters 874 IOPS. The eight-drive RAID 5 array averages 372 IOPS, and the four-drive RAID 5 provided 208 IOPS.
The mixed read/write performance tests reveal very little performance degradation with both RAID 0 arrays. They are fairly even across the varying percentages of write activity. The RIAD 5 arrays suffer slower performance as we mix in more write activity.