ServerNet Cluster Manual

Troubleshooting and Replacement Procedures
ServerNet Cluster Manual—520575-003
7-33
MSEB and ServerNet II Switch LEDs
MSEB and ServerNet II Switch LEDs
You can use the LEDs on the MSEB and ServerNet II switch to help diagnose
problems. Figure 7-8 describes the LEDs on the MSEB. Figure 7-9 on page 7-34
shows the LEDs on the ServerNet II Switch.
For information about LEDs on the AC transfer switch or UPS, refer to the ServerNet
Cluster 6770 Hardware Installation and Support Guide.
Figure 7-8. MSEB LEDs
130vst vsd
9
5
6
3
4
1
2
10
8
7
MSEB
1
2
LED Type Color Function
Power-On
Fault
Link Alive
Green
Amber
Green
1
2
3
Lights when the MSEB is powered on.
No.
Lights to indicate that the port is receiving a
valid link-alive signal from the remote port to
which it connected. The ServerNet port LEDs
(one for each PIC port) indicate the state of the
ServerNet link. These LEDs are extinguished
upon loss of the link-alive signal.
Lights when the MSEB or one of its PICs is not
in a fully functional state. Possibly, a fault was
detected on the MSEB or one of its PICs or
the MSEB or PIC has not been successfully
intiialized and configured for use as a system
resource.
When an MSEB is powered on, the amber
LED lights briefly to indicate initialization and
configuration are in progress. When the MSEB
has been successfully intiialized and
configured, the amber LED is extinguished. If
the MSEB could not be configured, the amber
LED remains lit.
3
3
3
3
3
3