Backblaze External Hard Drive Not Backing Up
Check connected-drive eligibility and detection.
Before you begin
Check whether you are using Backblaze Computer Backup or Backblaze B2 Cloud Storage. The two products have different setup, billing, and recovery procedures. Confirm your operating system, software version, and the exact error before changing settings.
Steps to follow
- Confirm the external drive is mounted and healthy.
- Review the application's selected drives.
- Check the vendor's external-drive connection requirements.
- Verify the drive appears in recent backup activity.
How to confirm the fix
Repeat the affected task using a safe test. For Computer Backup, check that new files are being backed up and that an appropriate restore point is available. For B2, test a limited upload or download using the intended scoped credentials. A successful status message is not a substitute for a tested restore.
If the issue continues
Record the exact error, time, product, client version, and relevant non-sensitive logs. Consult the official Backblaze Help Center for current instructions. Do not remove the only backup copy, weaken access controls, or disable retention rules just to dismiss a warning.