Understanding DRaaS is half the battle, and like any technology solution there is key terminology that is beneficial to understand for it to be appropriately utilized.
The following terms and definitions will help demystify DRaaS:
Continuous Data Protection (CDP) – A process in which every change a user makes to data automatically triggers a backup of that data, recording every version the user saves. The true power of it comes from your ability to restore client data to any point in time without any data loss of critical assets.
Disaster Recovery (DR) – An organization’s method of regaining access and functionality to its IT infrastructure after events like a natural disaster, cyber attack, or even business disruptions related to the COVID-19 pandemic. A variety of disaster recovery (DR) methods can be part of a disaster recovery plan. DR is one aspect of business continuity.
Business Continuity Plan (BCP) – Detailed documentation on how to keep a business operating during an unplanned service disruption – ACCOUNTS for all areas of the business.
Disaster Recovery Plan (DR Plan) – Formal documentation with detailed instructions for an organization to respond to unplanned incidents.
Business Impact Analysis (BIA) – Calculates accurately the cost of downtime – Will provide accurate RPO and RTO based upon business needs not assumptions made by IT.
Recovery Time Objective (RTOs) – Recovery time objective (RTO) is a key metric that helps you to calculate how quickly a system or application needs to be recovered after downtime so there is no significant impact on the business operations. In short, RTO is the measure of how much downtime you can tolerate. Defining RTO involves understanding the tolerance downtime of each system and for each of your applications.
Recovery Point Objective (RPOs) – Recovery point objective (RPO) is a metric you set for the amount of data loss your business can endure and continue to function without any effect on the business operations. The higher the criticality of data, the lesser should be the value of RPO.
Journal-Based Recovery – Highly granular restore points for a given time.
Snapshots vs. Continuous Data Protection – Snapshots are scheduled & CDP constantly replicates changes.
Immutability – Prevent deletion of restore data.
File-Level Restore – Pick and choose folders/files to restore.
Air-Gapped – Off-site, immutable file system, separation of management.