For Lightning DS 4.0
Please refer to Lightning Server Setting
For DS V2.3
ATTENTION: To use internal storage, you need Lightning DS V2.3 and above for proper operation.
After the internal storage has been installed, Lightning Server will need to initialize the storage before it can be used. To complete this procedure, simply follow the music library setup guide, select Hard Disk mode and complete the initialization. To start setup guide, please refer to the following article:
If you would like to initialize the storage manually, please use the 'Initialize Internal Storage' function inside Lightning Server setting page as below: