Administrator Guide : Security : Encryption : Starting an encrypted database
  
Starting an encrypted database
To start an encrypted database, you must provide the encryption password at the startup. If you do not include the password in the startup command, the server prompts you for the password.
Procedure
Start solidDB® using the following command:
solid -x keypwdfile:<filename>
For example:
solid -x keypwdfile:pwd.txt
Alternative, you can provide the password using the -S command-line option:
solid -S <encryption_password>
See also
Encryption