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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.
Cont'd
Chapter 7 Cluster Installation and Configuration
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