What is Disaster Recovery?
Disaster recovery (DR) is a crucial component of business continuity planning. It involves strategies and processes designed to restore system access, minimize downtime, and mitigate financial losses after a disruptive event—whether it’s a cyberattack, hardware failure, or natural disaster. Every business—regardless of size—should have a disaster recovery plan in place and ensure it’s reviewed and tested annually.
Comprehensive Backup Strategy
Everyone, business or individual should have backups of their most important data. Using the 3-2-1 rule: Keep 3 copies of data, on 2 different media types such as a cloud backup (backed up daily), and at least 2 offline external hard-drives (with drive 1 backed up daily/weekly and drive 2 backed up weekly/monthly), and drive 2 being kept as an offsite backup.
Test Your Backups
It is not enough to just setup and run your backups, these backups need to be tested periodically to ensure that 1, they are actually backing up the data you want backed up. 2, The medium you are backing up to is functioning correctly and you are able to recover the backed up data. 3, The data is backing up correctly and has not become corrupted.
Having regular-automated backups running can protect your critical data and minimize data loss. Also remember to regularly test your backups.
Drive Images
A drive image is a complete copy of your computer exactly as it was when the image was created. If something goes wrong, restoring this image brings your system back quickly—much faster than reinstalling the operating system and all your programs. Any updates released afterward can simply be installed once the system is running again.
Drive images are extremely helpful after a cyberattack, hardware failure, or when replacing or upgrading a drive. They can be restored to drives of the same size or larger.
For safety, images should be stored in multiple secure locations. One copy can be kept on a dedicated external drive on‑site, and another in a separate, secure cloud account with multi‑factor authentication and encrypted storage.
Because a drive image is a snapshot in time, it should be updated whenever major changes or new software are added.
Drive images are a great way to recover quickly from drive failure. However, they do not replace regular backups. Make sure your images stay current. Update your stored images whenever you install new programs.