Internal vs. external RAID on ASUS P9X79 Pro motherboard

[VelcroFace]

Due to the massive amount of data I'll be ingesting on a new video project, it looks as if I need to expand the capacity of my system by about 16TB. (This is a home-built Intel Core i7-3930K desktop based on the ASUS P9X79 Pro motherboard with 32GB of RAM.) I have $800 in my budget for new hardware. One option is to install two enterprise-class 8TB drives on the Marvell RAID controller, and configure them as RAID 0. (I need RAID 0 because I'll be working with 5K video files.) Another option is to purchase an external RAID drive, such as the Western Digital MyBook Duo, which boasts a throughput of 320 MB/sec in RAID 0. Which option would work better, in your opinion? Does the Marvell controller even support drives as large as 8TB?

 

[Snipergod87]

Internal storage would be better, the Controller should be able to handle it. I assume you already know the risks of RAID 0, if you don't mind losing those files I wouldn't store them on the array for long.

 

[VelcroFace]

Thanks for your thoughts. If my budget allowed it, I would go with RAID 5. (I already have an external drive set up for RAID 5, but it has only a quarter of the capacity I need.) All the video files are stored separately on archival drives. The RAID 0 drive would be just a working drive.