If one or more external drives are showing a "Fix This" message on the Overview page, or if you've received a "Missing drive" email, please follow this troubleshooting guide.
First, go to the Overview page of the Backblaze website to check which drive is reported as missing by signing in here: https://secure.backblaze.com/user_signin.htm
Once you've established which drives require update:
1. Ensure the Backblaze software is up to date by selecting the “Check for Updates” option in the Backblaze menu.
2. Connect all the hard drives that are selected for backup to the computer simultaneously.
3. Ensure the Backblaze backup schedule is set to “Continuously”. Here are guides for macOS and Windows.
4. Create a single, small file on the drive(s) in question - just a simple text file is fine.
6. Open the Backblaze software installed on the computer and click the “Backup Now” button. Here are guides for macOS and Windows.
7. Allow Backblaze to run for at least 4 hours uninterrupted by reboots, computer sleep, or disconnecting drives. You may need to disable computer sleep in your computer’s power settings.
8. See if the small file you created has been backed up, and if the date of the drive’s last update also updated.
If the issue persists, check that this drive does not have any restrictive permissions settings, or encryption.
Then go to the Backblaze control panel (Win) or Backblaze Preferences (Mac). Go to ‘Settings’, uncheck the drive in question, and press "OK". Then re-check the drive before clicking "OK" once more and closing the Settings. Perform the same steps outlined above.
If the drive or drives continue to appear not to be updating after following these steps, please contact support: https://www.backblaze.com/help.html