Test System and Methodology
Our approach to storage testing targets 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 fall short in providing the clearest view possible of I/O QoS (Quality of Service).
While under load, all storage solutions deliver variable levels of performance. "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. 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. This testing methodology illustrates performance variability, and includes average measurements during the measurement window.
IOPS data that ignores latency is useless. 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 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.
We conduct our tests over the full LBA range to allow each HDD to highlight its average performance. All three HDDs spin at 7,200 RPM and feature varying capacity points, which should be taken into consideration when analyzing performance and power metrics. The first page of results will provide the key to understanding and interpreting our 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 [Enterprise Capacity 2.5 HDD Internals and Specifications]
- Page 3 [Test System and Methodology]
- Page 4 [Benchmarks - 4k Random Read/Write]
- Page 5 [Benchmarks - 8k Random Read/Write]
- Page 6 [Benchmarks - 128k Sequential Read/Write]
- Page 7 [Benchmarks - Database/OLTP and File Server]
- Page 8 [Benchmarks - 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
- Sumo Digital may go public in new IPO worth $198 million
- Gearbox hiring writer for Borderlands 3
- Take-Two: Microtransactions help buffer risk of new IP
- UK official responds to lootbox petition
- Rocket League hosts Halloween event 'Haunted Hallows'
- EK Fluid Gaming: Water-Cooled Gaming PC Build Guide
- Thecus® N2350 & N4350 the most affordable Home NAS series now available worldwide
- COLORFUL iGame GeForce GTX 1080 Vulcan X OC Review
- South Park: The Fractured But Hole Review
- NVIDIA locks overclocking in GeForce GTX 1070 Ti
- EK Water Blocks releases new Slim Series kits
- BIOSTAR releases new RACING Z370GT7 motherboard
- ASRock announces X299E-ITX/ac, world's first mini-ITX LGA2066 motherboard
- Noctua introduces chromax line fans, cables and heat sink covers
- G.SKILL Releases Fastest 32GB (4x8GB) Trident Z RGB Memory Kit at DDR4-4266MHz