How to Test Your Backup and Disaster Recovery (And Why Most Houston Businesses Don’t)

A backup that has not been tested is not a backup — it is a hope. Studies show that 58% of backup recovery attempts fail or require significant additional effort. Houston businesses that assume their backups work without testing them are setting themselves up for catastrophic data loss. Here is how to test your backup properly.

Why Backup Tests Fail

The most common reasons backup recovery tests fail: (1) Backup jobs were silently failing and no one noticed, (2) The backup is complete but the restore process is slower than the documented RTO, (3) Application data (SQL databases, EHR systems) was backed up at the file level rather than using application-aware backup — resulting in corrupt restores, (4) The recovery documentation is outdated and engineers cannot follow it successfully.

The Three Types of Backup Tests

(1) File/folder recovery test — restore a sample set of files from backup to verify accessibility and integrity. This is the minimum test and should be done monthly. (2) Server recovery test — restore a complete server image to a test environment and verify the server boots and applications run correctly. Do this quarterly. (3) Full DR test — execute a complete simulated disaster recovery, bringing all systems online in a test environment and verifying RTO and RPO. Do this annually.

How to Run a File Recovery Test

Select 50 random files from different dates in your backup history. Restore them to a test folder. Verify: files open correctly, file dates are accurate, no corruption errors. Document the time taken. Flag any files that fail to restore. A properly configured backup should restore these 50 files in under 30 minutes.

How to Run a Server Recovery Test

Restore a server image to a separate VM (virtual machine) in a test environment. Verify: server boots successfully, operating system patches are current, applications start correctly, database connections are functional, application data is consistent with the backup date. Document RTO. If the server takes 6 hours to restore and your RTO target is 2 hours, you have a problem to fix.

SpaceTown IT Backup Testing

SpaceTown IT conducts quarterly backup recovery tests for all managed IT clients and provides documented results with executive summary. See our backup and disaster recovery and Datto backup services. Call (832) 304-9748.