INITIAL HARD DRIVE TESTING
On migrating the Test Bench over to the Samsung HDD, the first thing I took note of was the reboot. It was long. I actually restarted it three times aft the initial reboot to capture the time. None of the tests were less than 1 minute and 40 seconds. Remember now, this is a well established system and not a fresh install.
ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.
Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible.
Over the last little while, we have been assisting with beta besting new benchmark software called Anvil Storage Utilities which is an absolutely amazing SSD benchmarking utility. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and utilize in our benchmark testing. Today it gets a crack at hard drive testing as well.
The final results of HDD testing shouldn’t be much of a surprise as we have been stating for years that the disk access time of the SSD is about 90 times faster than that of a typical SSD. The access time is primarily responsible for the largest visible upgrade that you will see when moving from hard drive to SSD.
The next key element is the small 4k random write disk access which, in an SSD, now averages somewhere in the 80-90MB/s range.