Dell EMC AX4-5I Troubleshooting Guide download pdf (Page 47)

Appendix:Troubleshooting 47

Troubleshooting

This section 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

access the storage

system, or the cluster

software is not

functioning with the

storage system.

The storage system is

not cabled properly to

the nodes or the

cabling between the

storage components is

incorrect.

Ensure that the cables are

connected properly from the

node to the storage system. See

"Cabling Your Cluster for Public

and Private Networks" for

more information.

The length of the

interface cables

exceeds the maximum

allowable length.

Ensure that the fibre optic

cables do not exceed 300 m

(multimode) or 10 km (single

mode switch-to-switch

connections only).

One of the cables is

faulty.

Replace the faulty cable.

Switching zone is not

configured correctly.

Verify that all switched zones are

configured correctly.

LUNs are not assigned

to the hosts.

Verify that all LUNs are assigned

to the hosts.

The cluster is in a

SAN, and one or more

zones are not

configured correctly.

Verify the following:

• Each zone contains only one

initiator (Fibre Channel

daughter card).

• Each zone contains the

correct initiator and the

correct storage port(s).

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