..."diskutil list" lists the volume structures on the drive(s) — the same as found in the System Report. It does NOT perform anything remotely resembling a surface scan....
I asked ryck to run "diskutil list" because I wanted to ensure that I incorporate the correct disk ID in the command I'm going to post.
My uncertainty arose from the fact that ryck is running a fusion drive, and the command I've got is for either a HDD or SSD, and it was well founded, because the disk ID for ryck's FD differs from the HDD/SSD ID, necessitating a change in the command. (See
screenshot)
Surface scan command coming in a bit.
Edited by artie505 (05/14/19 03:56 AM) ET
Edit Reason: Add link