Compaq 195294-001 - ProLiant - ML370R Quick Install Manual page 72

Table 5-3
Solving Node-to-Node Communication Problems
Problem
Alternating root node panics
(RA4100 system)
continued
Possible Cause
RA4100 storage subsystems
or hubs are not powered up
Ethernet connection failed
(and the CI serial cable is not
used)
Both ServerNet I connections
failed (and the CI serial cable
is not used)
Troubleshooting 5-7
Action
Apply power to the hubs and storage
subsystems.
Power down the cluster. Check the
Ethernet crossover cable to determine
that the cable is properly connected, or
is not crimped or compromised in any
way. If necessary, replace the Ethernet
crossover cable.
After the Ethernet connection is
repaired, boot the cluster.
Power down the cluster. Check the
ServerNet I cables to determine that the
cables are properly connected, do not
have bent pins, and are not crimped or
compromised in any way. If necessary,
replace the ServerNet I cables.
Verify the ServerNet I connections using
the SVU as described in Chapter 3 of this
guide. After the ServerNet I connections
are repaired, boot the cluster.
continued