During the site creation, a drive with the same name as the site is also automatically created. However, you can decide if such a drive is automatically created or not by using two parameters named autoCreatedDrive, and targetDrives in the external component plugin named CreateLivePortalEventListener.
<description>this listener creates a new live portal content storage.</description>
<description>A drive will be automatically created during the portal creation.</description>
<description>The list of drives which are automatically created during the portal creation with
If autoCreatedDrive=true, a drive will be automatically created during the portal creation regardless of targetDrives. In case autoCreatedDrive is not specified, then its default value is true.
If autoCreatedDrive=false, only drives listed in targetDrives are created. In case targetDrives is not specified, no drives are created.