ServerNet Cluster Manual

Installing and Configuring a ServerNet Cluster
ServerNet Cluster Manual—520575-003
3-28
Task 5: Connect the Four-Lane Links
2. Remove the dust caps from the fiber-optic cable connectors.
3. One cable at a time, connect the cable ends. Table 3-8 shows the cable
connections.
4. Check the link-alive LED near each PIC port. The link-alive LEDs should light a few
seconds after the cable is connected at both ends. If the link-alive LEDs do not
light:
•
Try reconnecting the cable, using care to align the key on the cable plug with
the PIC connector.
•
Make sure the dust caps have been removed from the cable ends.
•
If possible, try connecting a different cable.
5. Continue until all of the cables are connected.
Note. ServerNet II Switch ports 8 through 11 are keyed differently from ports 0 through 7.
See Figure 3-3 on page 3-20. To connect the four-lane link cables, you must align the
fiber-optic cable connector with the key on top.
Note. To avoid generating an alarm, you must connect the four-lane links for both fabrics
within four minutes. OSM or TSM incident analysis (IA) software generates an alarm
eventually if one external fabric has two cluster switches while the other external fabric has
only one cluster switch.
When a cluster switch is added to an external fabric, the IA checks the peer fabric to
determine if it has two cluster switches. If, after four minutes, only one external fabric has
two cluster switches, the IA generates a Missing Remote ServerNet Switch alarm. If, after
four more minutes, the peer fabric still does not have two cluster switches, the IA dials out
the Missing Remote ServerNet Switch alarm.
If a second cluster switch is added to the peer fabric after the alarm is generated but
before the alarm is dialed out, the alarm is deleted and is not dialed out.
Table 3-8. Cable Connections for the Four-Lane Links
Cluster
Switch Port
Connects
to Cluster
Switch Port
X1 8 X2 8
9 9
10 10
11 11
Y1 8 Y2 8
9 9
10 10
11 11