Cant see Drobo 5C When Mac is in recovery Mode

How do i get my Mac to see the Drobo 5C when im in mac recovery mode? Im trying to restore from Time Machine backup on on Drobo 5C

If your Drobo is attached to the Mac via Thunderbolt, try attaching it via USB. I believe I’ve encountered this issue several years ago (I have a Drobo 5D that can attach using USB or Thunderbolt).