20799   zERR_INVALID_VOLUME_PASSWORD

Source:  NSS, Common Layer, Encrypted Volume

Explanation:  Password supplied for encrypted volume use is invalid.

Possible Cause:  On the first activation after a system reboot, you must enter a valid password for an encrypted volume. If the password is invalid, you cannot activate the volume. Passwords are case sensitive.

Action:  Repeat the activation command for the volume and enter a valid password when prompted.