WD Red Pro disappears from OSX after reboot

Successfully installed two 10tb WD Red Pro drives into my 2013 Mac Pro with 10.14.6. After reboot, both drives failed to appear in Finder. Also, my Mac freezes at random requiring a hard reboot. After two hard reboots, the drives appear in finder again and I can access them with read/write. My mac never froze like this prior to installing these two drives.
I have all WD drives in this Mac.

Drive 1 = WD 3TB Green (OS Disk)
Drive 2 = WD 4TB Blue
Drive 3 = WD 10TB Red Pro
Drive 4 = WD 10TB Red Pro

Any suggestions?

Found the help file here:


Will advise if this doesn’t do the trick…