Did not eject properly when host comp falls asleep

Hey everyone. I have a 5d thunderbolt directly attached to an iMac Late 2015 running OSX 12.3.1 Monterey. Connected with thunderbolt

Periodically when the host computer falls asleep I receive a message saying drobo did not eject properly when I wake the computer up. there is no drobo icon on the desktop, but when the drobo wakes up with the computer the drobo icon comes back on the home screen and works properly.

Any settings that I should change. any ideas.