Dell EMC AX4-5I manual Troubleshooting

Troubleshooting

This appendix provides troubleshooting information for your cluster configuration.

Table A-1 describes general cluster problems you may encounter and the probable causes and solutions for each problem.

Table A-1. General Cluster Troubleshooting

Problem	Probable Cause	Corrective Action
The nodes cannot	The storage system is	Ensure that the cables are
access the storage	not cabled properly to	connected properly from the
system, or the cluster	the nodes or the	node to the storage system. For
software is not	cabling between the	more information, see "Cabling
functioning with the	storage components is	Your Cluster for Public and
storage system.	incorrect.	Private Networks" on page 15.
	One of the cables is	Replace the faulty cable.
	faulty.
	LUNs are not assigned	Verify that all LUNs are assigned
	to the hosts.	to the hosts.
One of the nodes takes a	The node-to-node	Check the network cabling.
long time to join the	network has failed due	Ensure that the node-to-node
cluster.	to a cabling or	interconnection and the public
OR	hardware failure.	network are connected to the
		correct NICs.
One of the nodes fail to
join the cluster.
	Long delays in	Verify that the nodes can
	node-to-node	communicate with each other
	communications may	by running the ping command
	be normal.	from each node to the other
		node. Try both the host name
		and IP address when using the
		ping command.

Troubleshooting

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