This read-write object controls whether a newly discovered target is automatically usable by this initiator device or requires explicit operator approval first, per the desc: autoEnable(2) lets the initiator use a discovered target immediately, while manualEnable(3) requires an operator to explicitly authorize it before use. An admin running a security-conscious SAN sets this to manualEnable(3) so that no host can start talking to a newly appeared storage target without a human review step, preventing an unauthorized or rogue target from being used automatically. Leaving this at autoEnable(2) in a more permissive environment trades that manual gate for operational convenience when new storage is added routinely.