In in a drive bay of a desktop computer then one should make sure both the power plug and SATA connector are both connected to the my hard drive.
If using Linux one may need to mount the drive. Use your favorite internet search engine to find various directions on how to scan for attached drives then mount them using Linux.
Crystal Disk Info is a Windows program. There are apps/commands one can run on Linux to perform the same, scan the SMART info. Use your favorite search site to find various ways to display the SMART info on Linux.
IN the end though if the drive is dead one could always put a brand new hard drive inside the My Cloud enclosure after performing an unbrick process on it. Various unbrick methods can be found using this website’s search feature (magnifying glass icon upper right). Many of us have replaced the hard drive in our My Cloud’s with larger (or smaller) hard drives.
