ServerNet Cluster 6780 Planning and Installation Guide (G06.29+, H06.06+, J06.03+)

Troubleshooting
ServerNet Cluster 6780 Planning and Installation Guide—527301-008
10-5
Recovery Operations
Recovery Operations
To recover from problems that might occur during installation or migration:
•
Enabling Automatic Expand-Over-ServerNet Line-Handler Generation on
page 10-5
•
Reseating a Fiber-Optic Cable on page 10-5
•
Correcting a Mixed Globally Unique ID (GUID) on page 10-6
•
Restoring Connectivity to a Node on page 10-7
•
Switching the SANMAN Primary and Backup Processes on page 10-8
•
Switching the SNETMON Primary and Backup Processes on page 10-8
•
Configuring the Expand-Over-ServerNet Line-Handler Processes and Lines on
page 10-9
•
Starting Required Processes and Subsystems on page 10-9
Enabling Automatic Expand-Over-ServerNet Line-Handler
Generation
Automatic Expand-Over-ServerNet line-handler generation is enabled by default. If it
has been disabled, use the ENABLE macro located at the $SYSTEM.ZOSMLH
subvolume to reenable it. To reenable automatic Expand-Over-ServerNet line-handler
generation, run ENABLE at a TACL prompt:
> RUN ENABLE
Reseating a Fiber-Optic Cable
1. Check that the fiber-optic cable is clearly labeled.
2. Disconnect the fiber-optic cable from the 6780 switch.
3. Connect the LC connector to the appropriate 6780 switch port:
a. Align the keys on the connector body with the transceiver on the switch.
b. Insert the LC connector into the transceiver, squeezing the connector body
gently between your thumb and forefinger as you insert it. Push the connector
straight into the receptacle until the connector clicks into place.
c. Check that the connector is fully mated to the transceiver.
4. Check the link-alive LED near each 6780 switch port. The LED should light
seconds after the connector is inserted. Wait for the LED to stop flashing. If the
LED does not remain lit without flashing after 60 seconds, refer to Green Link-Alive
LED Is Not Lit on page 10-2.