Hi, and WELCOME TO TECHIMO...!
If you don't use the second disk for anything else, then you don't have to do any shrinking. If you have other partitions on that disk, and you want to keep the option to use them, then you will need to.......
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I've seen the light... It was green, flashy and attached to a Network Interface Card...
Whenever someone says "You can't miss it" I invariably do...