The super fast disk project: Part-5
Well, the Orico AC325-4S arrived from China today. It was the last piece of the puzzle for getting this thing packaged for production. A little bit of angle aluminum fabrication is all it took to attach the u-shaped carrier of four SSD's to the NewerTech 3.5/2.5 interposer and the the Mac Pro 3.5 inch drive sled in position-2.
It went together well. The NewerTech MAXPower RAID 1e1i also came up without a hitch, and worked as expected. For the first pass, I simply built a 4-way RAID-0 array from the four Crucial BX100 SSD's, and ran a quick BlackMagic Design disk speed test.
As you can see from the screen shot attached to this entry, it's crusing at about 1700 Mbytes/sec for sequential reading, and 1400 Mbytes/sec for sequential writing. This is right where the Barefeats website predicted I would be. I am satisfied.
I'll do some more testing soon with comparing hardware RAID with software RAID, and comparing the NTFS cross-platform products to see if they make any difference in performance.
It's also good to know that there is every reason to believe that 2500 Mbytes/sec is attainable by adding two more BX100's. I'll have to think of a good reason to do such a thing, but one never knows...
So far the trial version of MacDrive Pro 10 in Windows that can read/write the HFS+ software RAID-0 array has been a disappointment. It doesn't work as expected. Within seconds, a reading operation from the 360GB SSD on USB 3.0 started at over 400 MBytes/sec, fell to 190, then 38, and then froze. A reboot and second try revealed the same (and worse) behavior. Windows Explorer gets hung up, and therefore all the desktop icons and task bar items disappear too.
I gave up, and built a hardware RAID-0 in OS X. That works well with a very slight 2-percent penalty in performance compared to the software RAID. At least it's nice to know that the Paragon software in OS X that read/writes within NTFS perform on par with the native HFS+ format.
Simply depend on the fact that the $20 Paragon Windows HFS+ product can read the hardware RAID, but the $33 MediaFour MacDrive 10 Pro at this point is not recommended.
NewerTech MAXPower RAID 1e1i - $220
Crucial BX100 250GB SSD (qty 4) - $340
Paragon Windows HFS+ - $20
NewerTech AdaptaDrive - $14
SFF-8087 cable - $10
SATA power distribution cable - $7
Orico AC325-4S drive cage - $8
- Ted Gary of TedLand
Oct 5, 2015