Published 2021-06-09 by TechNet New England
In an age of cloud storage and automatic syncing, many business owners assume their data is protected. It often is not. Cloud sync services like OneDrive and Dropbox are convenient, but they are not backup solutions. If a file gets corrupted, deleted, or encrypted by ransomware, that damage syncs to the cloud too.
The 3-2-1 Rule Explained
The 3-2-1 backup rule is simple and effective:
- 3 copies of your data (the original plus two backups)
- 2 different types of storage media (e.g., local drive and cloud)
- 1 copy offsite (physically separate from your primary location)
This approach protects against virtually any data loss scenario: hardware failure, ransomware, theft, fire, flood, or human error.
Why Sync Is Not Backup
Services like OneDrive, Google Drive, and Dropbox sync files across devices. If you delete a file on one device, it disappears everywhere. If ransomware encrypts your files, the encrypted versions sync to the cloud. These services are file sharing tools, not backup systems.
What a Real Backup Looks Like
Local Backup
A local backup provides fast recovery for everyday issues like accidental deletion or hardware failure. This could be:
- A network-attached storage (NAS) device running backup software
- A dedicated backup server
- An external drive with automated backup scheduling (for very small setups)
Cloud Backup
A cloud backup protects against site-wide disasters (fire, flood, theft) and provides geographic redundancy. Business cloud backup solutions offer:
- Automated, scheduled backups
- Encryption in transit and at rest
- Configurable retention policies
- Point-in-time recovery
Test Your Backups
A backup that has never been tested is not a backup. Schedule regular test restores to verify:
- Backup files are complete and not corrupted
- You can actually restore data from the backup
- The restore process is documented and your team knows how to execute it
- Recovery time meets your business needs
The Cost of Not Having Backups
The cost of a proper backup system is a fraction of the cost of data loss. Businesses that lose critical data face revenue loss, compliance penalties, legal liability, and in some cases, closure. The investment in proper backups is one of the best returns in all of IT.
When was the last time you tested your backups? If you are not sure, let us help you evaluate your backup strategy.