Test System and Methodology
We utilize a new approach to HDD and SSD storage testing for our Enterprise Test Bench that is designed specifically to target long-term performance with a high level of granularity. Many testing methods record peak and average measurements during the test period. These average values give a basic understanding of performance, but they fall short in providing the clearest view possible of I/O Quality of Service (QoS).
'Average' results do little to indicate performance variability experienced during actual deployment. The degree of variability is especially pertinent as many applications can hang or lag as they wait for I/O requests to complete. This testing methodology illustrates performance variability and includes average measurements during the measurement window.
While under load, all storage solutions deliver variable levels of performance. While this fluctuation is normal, the degree of variability is what separates enterprise storage solutions from typical client-side hardware. Providing ongoing measurements from our workloads with one-second reporting intervals illustrates product differentiation in relation to I/O QoS. Scatter charts give readers a basic understanding of I/O latency distribution without directly observing numerous graphs.
Consistent latency is the goal of every storage solution, and measurements such as Maximum Latency only illuminate the single longest I/O received during testing. This can be misleading as a single 'outlying I/O' can skew the view of an otherwise superb solution. Standard Deviation measurements consider latency distribution, but they do not always effectively illustrate I/O distribution with enough granularity to provide a clear picture of system performance. We utilize high-granularity I/O latency charts to illuminate performance during our test runs.
Our testing regimen follows SNIA principles to ensure consistent, repeatable testing. We measure power consumption during precondition runs. This provides measurements in time-based fashion, with results every second, to illuminate the behavior of power consumption in steady-state conditions. Power consumption can cost more over the life of the device than the initial acquisition price of the hardware itself, which significantly affects the TCO of the storage solution. We also present IOPS-to-Watts measurements to highlight efficiency.
Our test pool features SSDs of varying capacity, and it is important to bear this in mind when viewing results. The Toshiba PX02SS and PX02SM feature static performance specifications among their different capacity points. This should provide a fair representation of performance in comparison to the HGST SSD800MM. The first page of results will provide the 'key' to understanding and interpreting our new test methodology.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction]
- Page 2 [Toshiba PX02SS Internals and Specifications]
- Page 3 [Test System and Methodology]
- Page 4 [4k Random Read/Write]
- Page 5 [8k Random Read/Write]
- Page 6 [128k Sequential Read/Write]
- Page 7 [Database/OLTP and File Server]
- Page 8 [Email Server]
- Page 9 [Final Thoughts]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- Project Scorpio 4K vs 1080p side by side comparison
- PSN and Xbox LIVE hacker imprisoned for two years
- GALAX GTX 1080 Ti HOF, 3 x 8-pin PCIe power & LCD panel
- NVIDIA's recent Gamer Connect event in India: success
- More 'Star Trek' movies not guaranteed, warns star
- Synology RT2600ac Wireless Router Review
- Cursor disappearing randomly
- AORUS GeForce GTX 1080 Ti 11G Review
- Intel Optane Memory 32GB M.2 NVMe SSD Review
- ASRock Fatal1ty Z270 K6 USB 3.1/TB Issues
- Nokia partners with Lucasfilm to deliver an immersive behind-the-scenes VR experience of Star Wars: The Last Jedi
- New LaCie 2big Dock Thunderbolt 3 bridges the port gap and delivers massive capacity to streamline creative workflows
- ENERMAX launches D.F. STORM, the 3500RPM fan featuring self-cleaning design
- Tenda unveils new USB 3.0 AC1300 wireless network adapter
- SteelSeries brings gamers the world's first dual-surface RGB illuminated mousepad - introducing the QcK Prism