Yes. You can maintain PERMITS on multiple servers. A basic scenario would be to USE two servers on your network to ensure that some permits are always available. You might have half of the total number of permits on each server. Under default operation, the client broadcasts a request to all servers on the network, and uses the first one to respond. It is possible to configure the client to go to a specific server, and also to configure a search order. In this situation, configure half your clients to connect to server 1 first, and half to connect to server 2 first. This configuration balances your usage over the two servers and also gives a level of BACKUP in the EVENT of server failure. 

Yes. You can maintain permits on multiple servers. A basic scenario would be to use two servers on your network to ensure that some permits are always available. You might have half of the total number of permits on each server. Under default operation, the client broadcasts a request to all servers on the network, and uses the first one to respond. It is possible to configure the client to go to a specific server, and also to configure a search order. In this situation, configure half your clients to connect to server 1 first, and half to connect to server 2 first. This configuration balances your usage over the two servers and also gives a level of backup in the event of server failure.