What do you mean by disaster recovery? How recovery point objective differs from recovery time objective?

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 Disaster recovery (DR) 

  •  Disaster recovery (DR) is an area of security planning that aims to protect an organization from the effects of significant negative events. DR allows an organization to maintain or quickly resume mission-critical functions following a disaster.
  • A disaster can be anything that puts an organization's operations at risk, from a cyberattack to equipment failures to natural disasters. The goal with DR is for a business to continue operating as close to normal as possible. The disaster recovery process includes planning and testing and may involve a separate physical site for restoring operations.


The recovery point objective (RPO) differs from the recovery time objective (RTO):-

  • Recovery point objective (RPO) and recovery time objective (RTO) are two important measurements in disaster recovery and downtime.
  • RPO is the maximum age of files that an organization must recover from backup storage for normal operations to resume after a disaster. The recovery point objective determines the minimum frequency of backups. For example, if an organization has an RPO of four hours, the system must back up at least every four hours.
  • RTO is the maximum amount of time, following a disaster, for an organization to recover files from backup storage and resume normal operations. In other words, the recovery time objective is the maximum amount of downtime an organization can handle. If an organization has an RTO of two hours, it cannot be down for longer than that.


RTO and RPO: The Differences

  • While RTO and RPO, often and should, go hand in hand, it is essential to know their differences and how their differences impact your business. For these two objectives, the main difference is found in their purpose.
  • RTO is going to refer to your company on a large scale. It will help you set a plan in motion to restore your entire company to a fully functioning state, post-disaster.
  • RPO is only going to refer to your business data, from a backup perspective to help you establish how often your data backups need to be done to improve your critical operations return to normal, as quickly as possible, post-disaster.
  • Both of these objectives will help you build a robust Business Continuity Plan. This Plan, will not only give your business the peace of mind of having protection in the event of a disaster but will also help you ensure a recovery plan to restore your IT and business operations as quickly as possible, in the unlikely event of an emergency.

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