Disaster Recovery
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Given the results of the BIA (see
Business Continuity), the businesses establish acceptable recovery time objectives (RTOs) and recovery point objectives (RPOs - the amount of data loss the business is willing to tolerate). These requirements drive the architecture and implementation of systems and network capabilities.
Critical systems with low RTOs and RPOs clearly drive system and network architecture and the level of investment. Recovery alternatives range from real time replication between two geographically distant data center to restoring tapes onto machined delivered to a hot, warm, or cold site after the disaster.
IT creates their own business continuity plans (BCPs) and system recovery plans to recover systems and networks based on their criticality to the business.
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