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By: Jon Coulter | SSDs in Storage | Posted: May 10, 2016 4:47 pm
TweakTown Rating: 91%Manufacturer: PNY

Iometer - Maximum IOPS


Version and / or Patch Used: Iometer 2014


We use Iometer to measure high queue depth performance. (No Partition)


Max IOPS Read




Max IOPS Write







With our configuration, we are able to easily exceed PNY's 95K maximum read IOPS specification. The CS2211 delivers the highest read IOPS of our test pool. We were not able to achieve PNY's 95K maximum write IOPS specification, falling short by roughly 6,500 IOPS. However, if we look back at Anvil, we were able to reach 92K IOPS with data on the drive. Still, both figures fall short of PNY's 95K specification, which has us wondering, how did they come up with that specification?



Iometer - Disk Response


Version and / or Patch Used: Iometer 2014


We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.


Avg. Write Response




Avg. Read Response






More evidence that A19nm flash delivers superior random read performance than 15nm flash. The ZOTAC Premium delivers the best read response in our test pool.



DiskBench - Directory Copy


Version and / or Patch Used:


We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our DC P3700 PCIe NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive's read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.


Write Transfer Rate




Read Transfer Rate






The CS2211 delivers class leading read transfer rates, tied with the 850 Pro for the top spot in our test pool. A write transfer rate of 417 MB/s is excellent; however, it is a bit lower than all but Mushkin's Reactor.

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