Disaster recovery
From Free net encyclopedia
Disaster recovery is a plan for a business to restart operations after a disaster; this is especially evident in information technology; with most large computer systems containing software to limit data loss and to aid data recovery. It is believed that some companies spend up to 25% of their budget on disaster recovery plans, however, this is to avoid bigger losses.
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Recovery Point Objective
Recovery Point Objective (RPO) is the point in time that the restarted infrastructure will begin to become evident. Basically, RPO is the rollback that will occur as a result of the recovery. To reduce a RPO it is necessary to increase the synchronicity of data replication.
Recovery Time Objective
Recovery Time Objective (RTO) is the time that will pass before an infrastructure is available. In order to reduce the RTO, it is required for data to be online and available at another site.
Salvage
When a critical data-loss occurs, without a preventive disaster recovery plan, the only option is to salvage the data.