DiskBench - Directory Copy
Version and / or Patch Used: 220.127.116.11
Developer Homepage: Nodesoft
Product Homepage: DiskBench
We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) of mostly incompressible random data as it's transferred from our OS array to our test drive/array. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive/arrays read transfer rate. The system is restarted prior to the read test to clear any cached data, insuring an accurate test result.
Write Transfer Rate
The size of the data block we are using exceeds the EVO's "Turbo Write" capacity. What you are seeing is the transfer capabilities of the TLC NAND outside of the EVO's write acceleration layer.
Read Transfer Rate
Whatever the real-world scenario may be, an EVO array provides tremendous performance. Synthetic testing like ATTO, CDM etc. show the EVO and Extreme II array having similar sequential read performance. However, real-world read transfers paint a completely different picture.