RAID 0 8K Random Read/Write
In this preconditioning chart, we note the telltale garbage collection cadence of the DC S3700. The garbage collection routines run on a strict schedule on each SSD, and amazingly, this schedule is precise enough that all of the drives are entering the lower performance state at the same time. With the array only able to go as fast as the slowest member, any one member falling out of sync would lower the performance of the entire array.
We noticed this in several of our workloads, and with the extended time frame of our tests, which spans several days with no reboots, one wonders how long it would take before the drives fall out of sync and the array falls into one steady line of lower performance. We will run extended tests in the future on this same array to satisfy our curiosity, and note the results in the comments below.
8K random read and write speed is a metric that is not tested for consumer use, but for enterprise environments this is an important aspect of performance. With several different workloads relying heavily upon 8K performance, we include this as a standard with each evaluation. Many of our Server Emulations below will also test 8K performance with various mixed read/write workloads.
The average 8K random read speed of the 8 drive array comes in at 30,4667 IOPS at QD256, and the four drive array peaks at QD256 with 155,713 IOPS.
The 8k read latency results indicates that the best performance in latency-sensitive applications for the 8-drive array falls at QD128, and the 4-drive array again performs best at QD64.
The average 8K random write speed of the 8-drive array is 133,529 IOPS at QD256, and 68,026 IOPS for the 4-drive array.
With 8K random writes, the larger array performs best at QD64, while the smaller array excels at very low QD workloads in a pure write environment.
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.
Australia: Find other tech and computer products like this over at PLE Computer's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction]
- Page 2 [Intel DCS3700 Architecture]
- Page 3 [Adaptec ASR-72405]
- Page 4 [Test System and Methodology]
- Page 5 [RAID 0 4K Random Read/Write]
- Page 6 [RAID 0 8K Random Read/Write]
- Page 7 [RAID 0 128K Sequential Read/Write]
- Page 8 [RAID 0 Database/OLTP and Webserver]
- Page 9 [RAID 5 4K Random Read/Write]
- Page 10 [RAID 5 8K Random Read/Write]
- Page 11 [RAID 5 128K Sequential Read/Write]
- Page 12 [RAID 5 Database/OLTP and Webserver]
- Page 13 [Final Thoughts]
- 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.
Recommended for You
Latest News Posts
- NVIDIA secures 81% of the GPU market according to JPR
- eSports betting startup Unikrn gets backed by Ashton Kutcher
- Naughty Dog announces March 18, 2016 release for Uncharted 4 on PS4
- Google is trying to make 4K video less demanding on your connection
- FBI says companies lost $1.2B due to email scams since October 2013
- ASUSTOR AS5004T Four-Bay Consumer NAS Review
- Gigabyte G1 z170 Gaming 7 motherboard.
- Kingston DataTraveler microDuo 3C USB 3.1 Type-C Flash Drive Review
- PC-Q01/PC-Q03 Sizing Questions
- USB 3.0 header availability for PC-C37?
- CYBERTRONPC ANNOUNCES SMALL FORM FACTOR SYSTEM WITH AMD R9 NANO GRAPHICS CARD
- SilverStone Storage Devices - Mobile Series - MS08
- ASRock Z170 OC Formula Sets More Records at IDF 2015 San Francisco!
- ATTO Technology to Display Network and Storage Connectivity Portfolio at VMworld 2015
- SilverStone Accessories - Expansion Cards - ECM20