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Minimizing downtime and data loss during disaster recovery is typically measured in terms of two key concepts: Recovery time objective (RTO), time until a system is completely up and running; Recovery point objective (RPO), a measure of the ability to recover files by specifying a point in time the backup copy will restore to.
IT disaster recovery (also, simply disaster recovery (DR)) is the process of maintaining or reestablishing vital infrastructure and systems following a natural or human-induced disaster, such as a storm or battle. DR employs policies, tools, and procedures with a focus on IT systems supporting critical business functions. [1]
Business continuity planning life cycle. Business continuity may be defined as "the capability of an organization to continue the delivery of products or services at pre-defined acceptable levels following a disruptive incident", [1] and business continuity planning [2] [3] (or business continuity and resiliency planning) is the process of creating systems of prevention and recovery to deal ...
Prior to selecting a real-time recovery strategy or solution, a disaster recovery planner will refer to their organization's business continuity plan for the key metrics of recovery point objective (RPO) and recovery time objective for various business processes (such as the process to run payroll, generate an order, e-mail, etc.).
By this logic, recovery from recent Data Loss Events is easier and more complete than recovery from Data Loss Events that happened further in the past. Recovery is also related to the type of Data Loss Event. Recovering a single lost file is substantially different from recovering an entire system that was destroyed in a disaster.
Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits data to a service provider. Recent backups are retained locally, to speed data recovery operations.
A backup site (also work area recovery site [1] or just recovery site) is a location where an organization can relocate following a disaster, such as fire, flood, terrorist threat, or other disruptive event. This is an integral part of the disaster recovery plan and wider business continuity planning of an organization. [2]
The most desirable RPO would be the point just prior to the data loss event. Making a more recent recovery point achievable requires increasing the frequency of synchronization between the source data and the backup repository. [65] Recovery time objective (RTO): The amount of time elapsed between disaster and restoration of business functions ...
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