Fujitsu PRIMERGY TX1330 M1 Operating Manual page 70

Starting up and operation
CSS CSS indicator (yellow)
– Lights up yellow if a prefailure event was detected for a CSS
component that you can fix yourself (for reasons of precaution)
with the CSS concept.
– Flashes yellow if an error was detected that you can fix yourself
with the CSS concept.
– Does not light up when the system is OK.
If the event is still acute after a power failure, the indicator is
activated after the restart.
The indicator also lights up in standby mode.
For more information on the CSS concept, see the "FUJITSU
Server PRIMERGY TX1330 M1 Upgrade and Maintenance
manual".
ID ID indicator (blue on)
Localizes the server
blue flashing
Local monitor off
70 Operating Manual
TX1330 M1