Filter
Top Products
Configuring the Cluster Software 3-7
Cluster Service
The Cluster Service performs most of the cluster
functionality, including membership management,
communication management, and fail-over manage-
ment. When the Cluster Server has been properly
installed, the Cluster Service is started on each node and
is activated automatically in the event that one of the
nodes fails or goes off-line.
To verify that the Cluster Service is running on a cluster
node, click the Start button, point to Settings, and then
click Control Panel. Double-click the Services icon. The
Cluster Service should be indicated in the dialog box.
Check to make sure that the Cluster Service is running on
the second node also.
Availability of Cluster Resources
In the context of clustering, a resource is a basic unit of
fail-over. Applications are made up of resources that are
grouped together for the purposes of recovery. All recov-
ery groups, and therefore their comprising resources,
must be online (or in a ready state) for the cluster to func-
tion properly.
To verify that the cluster resources are online, start the
Cluster Administrator on the monitoring node. Click the
Start button, point to Programs, point to Administrative
Tools (Common), and then click Cluster Administrator.
Open a connection to the cluster and observe the running
state of each recovery group. If a group has failed, one or
more of its resources may be off-line.
Troubleshooting the reasons that resources might be fail-
ing is beyond the scope of this document, but examining
the properties of each resource and ensuring that the
specified parameters are correct is a first step in this pro-
cess. In general, if a resource is off-line, it can be brought
online by selecting it, right-clicking it, and choosing
Bring Online from the pull-down menu. For information
about troubleshooting resource failures, refer to the
Microsoft Windows NT Enterprise Edition Administra-
tor’s Guide and Release Notes.
U
ninstalling Microsoft Cluster
Server
Before you can uninstall Cluster Server from a node, you
must do the following:
1. Take all resource groups off-line or move them to
the other node.
2. Evict the node from the cluster by right-clicking
the node icon in Cluster Administrator and
selecting Evict Node from the menu.
3. Close Cluster Administrator on the node.
4. Stop the Cluster Service running on the node.
5. Uninstall Microsoft Cluster Server using the Add/
Remove Programs utility in the Control Panel
group.
R
emoving a Node From a Cluster
When removing a node from a cluster, it is important to
power down the node before removing any of the cluster
cabling. Likewise, when rejoining a node to a cluster, all
cables must be attached before the node is powered up.
WARNING: The power supplies in this computer
system produce high voltages and energy hazards,
which can cause bodily harm. Only trained service
technicians are authorized to remove the computer
covers and access any of the components inside the
computer.
WARNING: This system may have more than one
power supply cable. To reduce the risk of electrical
shock, a trained service technician must disconnect
all power supply cables before servicing the system.