Reference Guide

Troubleshooting 65
Unable to add a node
to the cluster.
The new node cannot
access the shared
disks. The shared disks
are enumerated by the
operating system
differently on the
cluster nodes.
Ensure that the new cluster node can
enumerate the cluster disks using
Windows Disk Administration. If the
disks do not appear in Disk
Administration, check the following:
• Check all cable connections
• For Fibre Channel storage arrays,
check all zone configurations
• Check the Access Control settings
on the attached storage systems.
Verify that the node in question is a
member of the correct Storage
Group or Host Group.
•Use the
Advanced with
Minimum
option
One or more nodes
may have the Internet
Connection Firewall
enabled, blocking
RPC communications
between the nodes.
Configure the Internet Connection
Firewall to allow communications
that are required by the WSFC and
the clustered applications or services.
The disks on the
shared cluster storage
appear offline in
Windows Disk
Administration
This situation is
normal. By default,
the shared disks are
offline when the node
detects them the first
time.
Right-click on the disk and click
Online.
The Validate Network
Communication test
fails on the iSCSI
networks
This is a known issue
which occurs when
you run Cluster
Validation on a cluster
configuration that is
using iSCSI array as
Direct attached
storage in Windows
Server 2008.
See Microsoft Knowledge Base article
KB951434 at the Microsoft Support
website at support.microsoft.com for
more information.
Table A-1. General Cluster Troubleshooting (continued)
Problem Probable Cause Corrective Action