Dell AX4-5 - Manual (Page 41)

Troubleshooting
41
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
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).