We call it a 'Mini Web Server'. It is used to vend error pages. There are no typical installations. These include clustering, disk mirroring, disk cloning, self imaging, automatic restart. We work with both Layer 4 and WCCP compliant devices.
Customers therefore have a choice to implement the desired level of resilience based on cost.
The UI shows the status of the last download and the next download time. During the download process the status message is updated with the progress of the download thus far. Look at the status message. The last download time isn't displayed. In the next release due by year end.