If you have reached this point, you have a working flexVDI platform up and running. This may be a good moment to perform a backup of your platform, as described at https://docflexvdi.atlassian.net/wiki/spaces/V31/pages/239141171 .
Installing paravirtualized drivers (qxl for graphics, virtio for disk and network, …) is crucial for getting the best possible performance from your virtual desktops. You have instructions for doin this at https://docflexvdi.atlassian.net/wiki/spaces/V31/pages/239141160
If you have installed flexVDI in more than one server with a shared storage, you should perform the steps described at https://docflexvdi.atlassian.net/wiki/spaces/V31/pages/239141010