IBM AIX HACMP SG24-5131-00, Hardware User Manual

Page: 153 / 240

Cluster Testing
135
• Use ifconfig to swap the service address back to the original service
interface back (
ifconfig en1 down
). This will cause the service IP address
to failover back to the service adapter on NodeF.
6.2.1.2 Ethernet or Token Ring Adapter or Cable Failure
Perform the following steps in the event of an Ethernet or Token Ring adapter
or cable failure:
• Check, by way of the verification commands, that all the Nodes in the
cluster are up and running.
• Optional: Prune the error log on NodeF (
errclear 0
).
• Monitor the cluster log files on NodeT.
• Disconnect the network cable from the appropriate service interface (but
not the Administrative SP Ethernet) on NodeF. This will cause the service
IP and MAC addresses to failover to the standby adapter on NodeF.
• Verify that the swap adapter has occurred.
• Reconnect the network cable to the service interface. This will cause the
original service interface to become the standby interface.
• Initiate a swap adapter back to the original service interface by
disconnecting the network cable from the new service interface (originally
the standby interface). This will cause the service IP and MAC addresses
to failover back to the service adapter on NodeF.
• Verify that the swap adapter has occurred.
• Reconnect the cable to the original standby interface.
• Verify that the original standby interface is operating with the standby IP
address.
6.2.1.3 Switch Adapter Failure
Perform the following steps in case of switch adapter failure:
• Check, by way of the verification commands, that all the Nodes in the
cluster are up and running.
• Assign NodeF to be Eprimary.
• Optional: Prune the error log on NodeF (errclear 0).
• Monitor the cluster log files on NodeT.
Do not disconnect live switch cables to simulate a switch failure!
Note