TEST BENCH AND PROTOCOL
Testing devices that push out 2.5GB and over 400,000 IOPS and reaching their highest performance is no easy task. Although we utilized the Test Bench shown here, we mixed and matched several configurations of motherboards over the course of a week to determine the best results.
In the end, the results displayed are the highest achieved through testing on any of three motherboards, the Gigabyte Z68x-UD7-B3, ASRock Z68 Extreme 4 and the Z68 Extreme 7 which arrived less than twelve hours to publishing.
In testing, our main objective is to obtain results as pure and as accurate as possible and we want to ensure that no anomalies slip through. Simply put, we want to provide you with the absolute best results the tested hardware can provide.
Repetition in testing is standard and, if necessary, we may conduct specific tests in Windows 7 safe mode to ensure the OS has little to no influence on the end result.
In order to validate and confirm our findings, testing is supported by industry accepted benchmark programs. All results are displayed through capture of the actual benchmark for better understanding of the testing process by the reader.
SSD COMPRESSION AND TESTING FLUCTUATIONS
All SSDs are not created equal and this is as important a realization in the testing of enterprice PCI Express SSDs as any other. The OCZ Z-Drive R4 SSD relies on SandForce SF-2281 processors for its speed, the performance being part and parcel to SandForces use of compression techniques in storage whereas this is not seen in FUSION-IO products. This creates a bit of confusion when enthusiasts, and even representatives of large companies, test the drive with random data through benchmarking programs such as AS SSD and Crystal Diskmark (random data sample). The results seem to be lower than the listed specifications.
The results that we will see in the Z-R4, in testing incompressible data, actually present a false portrayal of the drives ability when compared to the io-D. This is why we are going to provide an extensive sample of benchmarks which will afford a clear indication of the strengths and weaknesses in both drives.
Software used for testing today will include ATTO Disk Benchmark, Crystal DiskMark, AS SSD, Anvil Storage Utilities, IOMeter 2010, HDTune Pro along with FutureMark PCMark Vantage.
All do a great job of showing us the numbers that we want to see, or dont want to see in some cases, while PCMark Vantage x64 is an excellent program which recreates tests that mimic the average users activity, all the while providing a medium to measure each.
LET THE STORAGE WARS BEGIN!!
OCZ Z-DRIVE R4 C SERIES PCI EXPRESS 1.6TB SSD