The filer requires a software license to enable the SnapManager SQL (SMS) service.
You are provided with the appropriate license codes when your filer or software is shipped from the factory or when you are given instructions for obtaining the software over the Internet.
In addition to installing the SnapManager SQL license, the following requirements must be met in order to run SnapManager.
SnapDrive must be licensed and configured for the filer.
The filer must have either the VLD or FCP license enabled, depending on which protocol you are using for your virtual disks.
SnapRestore must be licensed on the filer.
SnapMirror (if SnapMirror is used, a license is required on both the source and the target appliances).