failover

The process of transferring processes from a failed server to a functional server.

failover group

Two or more Sun Ray servers configured to provide continuity of service in the event of a network or system failure. Sometimes abbreviated as FOG or HA (for high availability). The term high availability refers to the benefit of this type of configuration; the term failover group refers to the functionality.

filling station

When a client's firmware is downgraded to an earlier version because it connects to a server running the earlier version, the client needs to be connected to a filling station so that it can download newer firmware. For this purpose, a filling station can be any private network configured for Sun Ray services or any shared network in which the Sun Ray DHCP server is the only DHCP server.

firmware barrier

See barrier mechanism.

FOG

See failover group.

fps

Frames per second.

frame buffer

Video output device that drives the video display. See virtual frame buffer.