Sun Microsystems Netra ct Installation Manual page 172

Reliability, Availability,
Serviceability (RAS)
S
system status panel
system controller
board
U
Glossary-4 Netra ct Server Installation Guide • September 2002
Refers to hardware or software features that implement or improve the
reliability, availability and serviceability of a server. For example, the Netra ct
server has a watchdog reset that prevents endless operating system "hangs". If
the operating system enters a hung state, the watchdog reset initiates a system
reset upon the expiration of a timer. This feature is said to increase the server's
availability. Much of the Netra ct server's RAS functions are provided by the
alarm card and the firmware that resides on that card.
A module designed to give feedback on the status of the key components
within the Netra ct servers. The system status panel has one set of LEDs for
each component within that particular server.
A hot-swappable component located behind the system status panel. It feeds
system status information to the system status panel, where LEDs give
feedback on the status of the key components within the Netra ct servers.
U A unit of measure equal to 1.75 inches.