Understanding the difference between High Availability and Disaster Recovery
Thursday, March 4th, 2010A simple definition of high availability and disaster recovery:
Don’t confuse high availability (HA) and disaster recovery (DR), or expect a DR solution to meet your availabililty needs. Put simply, high availability is about PREVENTING downtime and disasters, while disaster recovery is RECOVERING FROM PROBLEMS once they occur. Disaster recovery solutions are designed to help you recover from true disasters (floods, fires), not minor problems (network card failure, storage corruption).
