Elimination of single points of failure. This means adding redundancy to the system so that failure of a component does not mean failure of the entire system. Redundancy should be made on every possible level - storage, network, filesystem, OS.
Detection of failures as they occur.
Reliable failover.
Business Continuity Management involves:
Planning
Recovery
Management
BAU
Risk Management
Resilience
Procedures
BAU - Business As Usual
BCI - Business Continuity Institute
BCM - Business Continuity Management
BCMS - Business Continuity Management System
BCP - Business Continuity Plan
BIA - Business Impact Analysis
Business Continuity Exercise - Practicing the BCP - e.g. a DR Test
DR - Disaster Recovery
IMT - Incident Management Team
Incident - Something that happens to threaten BAU. Examples include: Power outages, Floods, Fires, IT Outages, Cyber-attacks, Pandemics etc.
Invocation - The act of declaring that the BCP needs to be put into effect
ISO 22301 - BCM Certification
RPO - Recovery Point Objective
RTO - Recovert Time Objective
WAR - Work Area Recovery - where BAU activities will relocate during an incident. Sometimes referred to as the War Room.