Types of disks
As you saw earlier in this chapter, SSDs are the best type of external disk for editing, but they are still somewhat expensive. So, there is still a place for spinning disks for archiving or backup purposes. At a pinch, a library on a spinning disk connected by USB-C or even USB 3 will serve the purpose for short projects, or quick corrections of previously completed projects in 4K or less.
RAID is a different story. Simply put, RAID combines several disks together to share the load, as it were. The biggest benefit is for spinning disks, as the mechanical process is duplicated so that more platters can be accessed at the same time. This results in the read and write speeds being faster. However, RAID still relies on the speed of the connection to the computer. If you are buying a new RAID setup, consider Thunderbolt technology version 3-4.
The added advantage of RAID, other than RAID 0, is that it allows data on a disk to be duplicated. If a disk in RAID fails...
