3.7 Cluster System Operation Model for MSCS/Failover Clustering

This section explains how to install Systemwalker Service Quality Coordinator on a cluster system that uses MSCS/failover clustering.

Operating a Manager or Enterprise Manager in a cluster system improves management task availability because even if a problem causes one node to fail, management tasks will be simply passed to the remaining normal node.

Execution environment

This function is available with Systemwalker Service Quality Coordinator Enterprise Edition.

It can only be installed for use with Enterprise Managers and Managers.

Required privileges

Windows

The user must have the privileges of a member of the Administrators group

Before performing this procedure

Before performing the procedure explained in this section, it is necessary to install MSCS/failover clustering and set up the environment.

If necessary, refer to the MSCS/failover clustering manual for information on installing MSCS/failover clustering and setting up a new cluster environment.

Note

This section explains the procedure used to construct a Manager/Enterprise Manager environment in a cluster environment that uses MSCS/failover clustering. Because it contains references to MSCS/failover clustering settings, a basic understanding and practical knowledge of MSCS/failover clustering is needed when reading this section.

Note that a Manager cannot be installed on a cluster system in the following situations:

When it is necessary to install the Manager and the Operation Management Client on the same machine
When the Manager is in a redundant configuration

The following cluster systems and types are supported.

[Cluster systems]

Microsoft(R) Cluster Server (referred to below as MSCS) and failover clustering provided by the following:

Windows Server 2003 Enterprise Edition
Windows Server 2003 Datacenter Edition
Windows Server 2008 Enterprise
Windows Server 2008 Datacenter

[Cluster types]

1:1 active/standby configuration (One node remains on standby for another node)
In this section, the node that runs a management task is referred to as the active node while the node that remains on standby to inherit the task is referred to as the standby node. The process by which the task is passed from the active node to the standby node in the event of an error is referred to as failover. Further, the disk that is shared by both the active and standby nodes is referred to as the shared disk.

Point

When setting the host name or IP address of a Manager involved in cluster operation (such as the connection destination Manager settings required when installing an Agent, Proxy Manager or Operation Management Client), specify a logical host name or logical IP address. This will enable the operation to be performed without the need to make a distinction between the active node and the standby node.

The following sections explain the Enterprise Manager clustering procedure for two-tier systems, and the Manager clustering procedure: