[John Roesli]

Update: Rebuilt a RAID 5 and matched Paul Joy settings. Verified using the 1.3.5 driver from ML. Using
V1.51 Firmware and Boot ROM dated 2012-08-08. Only difference I could see is an option for PCIe 3.0, which I disabled and moved the card back to slot 2 voila, x8 at 5.0 GT/s, not sure that is what did it, but
it’s there now. Verified the CineRAID uses 2 x 4 drive channels. Using 6 x 2TB Seagate for the RAID 5. Here is the result from AJA system test.
<a href='https://images.creativecow.net/244410/screen-capture.png'><img src='https://i1.creativecow.net/u/244410/screen-capture.png' border='0' /></a>

[John Roesli]

Okay so RAID 50 running AJA with disk cache disabled averaging 500 to 600 MB for write and
300 to 400 for read, without disk cache disabled writes are about the same, but read goes
up to 4.3 GBps Running Blackmagic matches the AJA benchmark with cache disabled except
read speeds are a bit slower.

[John Roesli]

FWIW, so setting up a scratch RAID 0 with Areca 1882X and external CineRAID Enclosure ( 6 x 2TB). Installed the 1882X in PCIe Slot 3
of Mac Pro 5,1, running 4x at 5.0 GT/s got some outrageous read numbers like 4.5 GBytes per second and write number
around .9 to 1.2 GBytes per second. Then read that the 1882X is an 8 lane card so move it to Slot 2 and it comes up as
2.5 GT/s x8 set up same RAID 0 and numbers were average 800 – 900 MBytes per second for both read and write, with write
maybe just a bit slower. Firmware and BOOT ROM are version 1.51 date August 8th, 2012. Moved the card back to Slot 3 and
building a RAID 50 overnight tonight, will see how it goes.