It would be useful if we could configure a fallback license server for ArcGIS.
Our Highway Department would like to purchase a concurrent license for only their department to use. However, I warned them that only one of their staff could use GIS at a single time as the software cannot check out a license from first their machine, then our general license server.
A Highway Department user opens ArcGIS.
ArcGIS looks to see if their is an open license on the Highway ArcGIS license server.
If all the licenses are in use then ArcGIS looks to see if there is an open license on the General ArcGIS license server.
This way the highway department could budget purchasing their own license for their needs and not have to worry about not being able to take advantage of the regular county pool of licenses.