preventive maintenance
Technical term used in engineering, IT, and facilities management for scheduled upkeep to prevent failures.
We perform preventive maintenance on the servers every month.
We need to review the preventive maintenance plan.
保守 is general maintenance or repair, while 予防保守 specifically refers to proactive, scheduled maintenance to prevent issues.
メンテナンス is a broader, more casual term for maintenance, whereas 予防保守 is a formal, technical term for preventive maintenance.
Compound of 予防 (prevention) and 保守 (maintenance). A straightforward technical term with no obscure historical derivation.