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Chapter 7 Cluster Installation and Configuration
97
Configuring Cluster Disks
Windows 2000 Managed Disks displays all SCSI disks, as shown on the screen below. It displays
SCSI disks that do not reside on the same bus as the system disk. Because of this, a node that has
multiple SCSI buses will list SCSI disks that are not to be used as shared storage. You must
remove any SCSI disks that are internal to the node and not to be shared storage.
In production clustering scenarios, you need to use more than one private network for cluster
communication to avoid having a single point of failure. Cluster Service can use private networks
for cluster status signals and cluster management. This provides more security than using a public
network for these roles. In addition, you can use a public network for cluster management, or you
can use a mixed network for both private and public communications.
In any case, verify that at least two networks are used for cluster communication; using a single
network for node-to-node communication creates a potential single point of failure. We
recommend that you use multiple networks, with at least one network configured as a private link
between nodes and other connections through a public network. If you use more than one private
network, make sure that each uses a different subnet, as Cluster Service recognizes only one
network interface per subnet.
This document assumes that only two networks are in use. It describes how you can configure
these networks as one mixed and one private network.
The order in which the Cluster Service Configuration Wizard presents these networks can vary. In
this example, the public network is presented first.
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