Unable to remove connected hosts from Unisphere managed storage array

I was recently bringing back to life a CX4-120 storage array, which had a number of connected hosts registered that were no longer active, I was unable to remove the host using the Unisphere GUI,¬†after invoking the deregister command on the last HBA connection, as the host object remained. After a ¬†short period of scratching … More Unable to remove connected hosts from Unisphere managed storage array