Iometer - Disk Response
Version and / or Patch Used: 1.1.0
We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4KkQD1 for both write and read. Each test is run twice for 30 seconds consecutively, with a 5 second ramp-up before each test. The drive/array is partitioned and attached as a secondary device for this testing.
Average Disk Response
Write response times benefit most from RAID 0 because of write caching. There is a slight latency increase in read response times for an array versus a single drive. Write response times are excellent, bested only by our 600 Pro and EVO arrays. Our test is operating within our EVO array's emulated SLC "Turbo Write" layer, so keep in mind that an EVO array will only have this level of write latency as long as what you are transferring fits within this layer.
DiskBench - Directory Copy
Version and / or Patch Used: 188.8.131.52
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/array's read transfer rate. The system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.
Write Transfer Rate
As expected, our 530 array's write transfer rate is not impressive.
Read Transfer Rate
Read transfer rate is quite good, which is not surprising, because IMFT NAND scales very well.
Once again, we see capacity limitation and incompressible data working against our 530 array's write transfer capabilities.
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- Page 1 [Introduction]
- Page 2 [Specifications, Pricing and Availability, Drive Details & Test System Setup]
- Page 3 [Synthetic Benchmarks - ATTO, Anvil Storage Utilities, CrystalDiskMark & AS SSD]
- Page 4 [Benchmarks (Trace Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8]
- Page 5 [Benchmarks (Secondary Volume) - Disk Response & Transfer Rates]
- Page 6 [Benchmarks (Secondary Volume) - PCMark 8 Extended]
- Page 7 [Final Thoughts]
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