After a reboot, one of my servers seems to be sharing a drive letter between a logical drive array and a network location.
F:\ and G:\ are (and were prior to the reboot) logical drive arrays. However, I believe that due to a power issue (which was the cause for the reboot), the letters were reassigned automatically.
How can I change the drive letters of these network locations so that my logical drives can use F: and G: again?
Easiest way is to remove the network drives, and then remap them to a different letter. I favor the command line, so, I'd use the net use command.
From a command prompt or PowerShell:
net use f: /delete
net use g: /delete
net use n: \\ComputerName\ShareName /persistent:yes
net use o: \\OtherComputerName\OtherShareName /persistent:yes
(I'd use persistent mappings since you seem to use them, and you'll need or want to reboot for the next step.)
Once that's done, you can change the drive letters of your physical drives with diskpart or with the Disk Management tool under Computer Management, and you'll be warned that some programs might not work correctly until a reboot.