So what I do is use the fast volume for video editing, then backup to the safety of my RAID 5 on off hours using Carbon Copy Cloner. Read/write speeds are around 500MB/s for the RAID 0, and around 300MB/s for the RAID 5 you'd probably see better numbers on both because your WD black drives are much faster than my Toshiba P300 drives. The reason I do this split setup is because RAID 0 is the fastest, but has no redundancy (one drive fails and you lose all your data), whereas RAID 5 is safe against a single drive failure but definitely isn't as fast. I then use the remaining 1.5TB of each drive to create a 4.5TB RAID 5. I run a 2TB RAID 0 using the first 500GB of space on my four 2TB drives, as the first part of a hard drive is always faster than the space at the end, which is used only when the drive is near full. Depending on the kind of raid you want to set up, you won't need any additional components other than the obvious additional hard drives. Quicktime player mac 2018 pro#I have a 2009 (4,1) Mac Pro which I upgraded to run 5,1 firmware. and PS: I attempted to upload an example clip but the video-uploading icon was grayed-out.
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