TweakTown
Tech content trusted by users in North America and around the world
5,926 Reviews & Articles | 38,177 News Posts

Intel DC S3700 Enterprise SSD 8-Drive and 4-Drive RAID Report - RAID 0 8K Random Read/Write

Intel DC S3700 Enterprise SSD 8-Drive and 4-Drive RAID Report

We test RAID 0 and RAID 5 arrays of the high-performance Intel DC S3700 series enterprise SSDs in 4-drive and 8-drive configurations. (NASDAQ:INTC)

| SSDs in IT/Datacenter | Posted: Aug 27, 2013 1:01 pm

RAID 0 8K Random Read/Write

 

TweakTown image content/5/7/5701_12_intel_dc_s3700_enterprise_ssd_8_drive_and_4_drive_raid_report.png

 

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.

 

TweakTown image content/5/7/5701_13_intel_dc_s3700_enterprise_ssd_8_drive_and_4_drive_raid_report.png

 

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.

 

TweakTown image content/5/7/5701_14_intel_dc_s3700_enterprise_ssd_8_drive_and_4_drive_raid_report.png

 

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.

 

TweakTown image content/5/7/5701_15_intel_dc_s3700_enterprise_ssd_8_drive_and_4_drive_raid_report.png

 

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.

 

TweakTown image content/5/7/5701_16_intel_dc_s3700_enterprise_ssd_8_drive_and_4_drive_raid_report.png

 

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.

Related Tags

Further Reading: Read and find more IT/Datacenter content at our IT/Datacenter reviews, guides and articles index page.

Do you get our RSS feed? Get It!

Post a Comment about this content

Latest Tech News Posts

View More News Posts

TweakTown Web Poll

Question: Facebook's acquisition of Oculus VR will...

Improve Oculus Rift Development

Hamper Oculus Rift Development

Completely destroy Oculus Rift Development

Let's wait and see, I'm not sure

or View the Results

View More Polls

Forum Activity

View More Forum Posts

Press Releases

View More Press Releases