Be it a natural disaster striking your primary data center and obliterating all your databases or some technical error that brings it down, forcing you to consider moving your database to your backup DR (disaster recovery) location, the right disaster recovery strategy would definitely save the day. How do we accomplish this? Well, there are primarily three strategies, you can considering, depending upon your downtime tolerance level: Electronic Vaulting Remote Journaling Remote Mirroring Let us see what each one of them has in store for us: Electronic Vaulting These are essentially bulk transfers wherein the database backups are moved from the primary site to the remote (backup / DR) site via network There is a significant delay between the time you declare a disaster and the time to recover your database backups Entire Backup files are transferred Not suited for hot sites where the recovery should be instantaneous Remote Journaling These are much more frequent and faster than Electro