What is CoreRAID? What is the function of com.apple.CoreRAID.plist in LaunchDaemons?
CoreRAID is a Framework to manipulate RAID devices.

The com.apple.CoreRAID.plist file in /System/Library/LaunchDaemons/ is used to start the CoreRAIDServer used in managing RAID devices.

Although I do have RAID Attached Storage Devices even if I didn't I would not disable the com.apple.CoreRAID.plist so as to be able to work with RAID devices as/when necessary.