Issues with GeoVision Camera System

[asasin114]

So I work for a business as an IT Systems Administrator. I currently have a GeoVision camera system with 118, yes, 118 IP Cameras on it. I currently have a mishmash of Ubiquity UniFi, Cisco, and GeoVision switches. (I'm in the process of switching entirely to Ubiquity UniFi Switches with a 10GB Fiber backbone due to data consumption and transfer speeds within the building. The server I custom built to handle the cameras has a Xeon E5-2609, 64GB ECC 1866 speed RAM, an Asus Z9PA-U8 mobo, 2 Seagate 240GB SSD's in RAID 1 as OS drive plugged into the onboard LSI controller, 8 WD 4TB RED HDD's in RAID 5, 2 Seagate 240GB SSD's in RAID 0 for SSD caching. These drives are running on a LSI 9280 16i4e with BBU and write back enabled on the 25TB Raid 5 Array on. I've also got cachecade enabled for the 25TB array with the other 2 SSD's. This week I've had the server lock up twice and drop over half of the cameras. I've gone through all the troubleshooting steps I can think of and even consulted another security firm I do work with and we can't come up with a solution! It's been running stable for 9 months. Does anyone have any tips for me?