Deployment Guide

Troubleshooting Tools 65
Troubleshooting
This appendix provides troubleshooting information for your cluster
configurations.
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 Hardware"
on page 17 for more information.
One of the cables is faulty. Replace the faulty cable.
Host Group or Host-to-
Virtual Disk Mappings is
not created correctly.
Verify the following:
• Host Group is created and the
cluster nodes are added to the
Host Group.
• Host-to-Virtual Disk Mapping
is created and the virtual disks
are assigned to the Host Group
containing the cluster nodes.
The CHAP password
entered is wrong.
If CHAP is used, enter correct
user name and password.
book.book Page 65 Tuesday, April 15, 2008 12:30 PM