Version and / or Patch Used:3.0 Technical Preview
CrystalDiskMark is a disk benchmark software.
* Sequential reads/writes
* Random 4KB/512KB reads/writes
* Text copy
* Change dialog design
* internationalization (i18n)
Note: Crystal Disk Mark 3.0 is not available to the public yet, but the Technical Preview does allow us to test 4K performance at queue depths of 4 and 32 in addition to 1. The current release Crystal Disk Mark only shows us QD 1.
In the ATTO test we were able to see the 4k results at a queue depth of 4 and were surprised at how well the RAID 0 pair F90's light up the chart in that block size. Here we get a chance to see the 4k numbers at single, 4 and 32 depths.
The QD:32 numbers were very high, but sadly we rarely see depths this high outside of server environments. As users start to get familiar with their new SSD array, they will start to multitask more and the chart shows that the more you work the array, the faster it will go.
The 4K write speeds are a bit of a different story. Here we see that from the start you get incredible 4k write performance even with a single request to write data. As the commands increase the speed decreases slightly.