Disaster recovery defines strategies, processes and technologies to restore IT systems and data after major outages. The goal is to minimize downtime (RTO) and data loss (RPO) through planning, backups, replication and tested recovery procedures. It covers organizational processes, technical measures and regular validation tests.
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Theoretical construct: explains a term, principle, or mental model.
What organizes, connects, or makes decisions possible.
It is a planned way to restore critical IT services and data after a major outage.
The approach grew from the operational need to resume essential functions after disasters, hardware failures, or serious configuration mistakes.
Follow the chain: detect the outage, assess damage, access protected resources, restart priorities, and stabilize service. RTO sets time; RPO sets acceptable data loss.
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Mechanism is a distinct part of this topic and guides its practical use.
Practice context is a distinct part of this topic and guides its practical use.
Use it for critical services and high-impact changes. Redundancy and faster targets cost more, and an untested plan remains an assumption.
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