dell 2950 iii

Hi all, I am currently running a Dell 2950 iii and using the inbuilt raid controller (which is support out of the box). I have 1 SAS boot drive, 1 SSD, 2 storage drives in raid 1 and a CCTV grade drive. The bulk storage is run off a FreeNas Box. I am wanting to get past the bottlenecks of the...