TAILIEUCHUNG - The Best Damn Windows Server 2003 Book Period- P24

The Best Damn Windows Server 2003 Book Period- P24:The latest incarnation of Microsoft’s server product,Windows Server 2003, brings many new features and improvements that make the network administrator’s job chapter will briefly summarize what’s new in 2003 and introduce you to the four members of the Windows Server 2003 family: the Web Edition, the Standard Edition, the Enterprise Edition, and the Datacenter Edition. | 196 Chapter 6 Implementing Windows Cluster Services and Network Load Balancing Server Cluster Deployment Options When you use either the single quorum device model or MNS model there are a variety of ways that you can configure your clustered applications to act during a failover operation. The choices vary with the number of nodes in your server cluster and each has advantages and disadvantages. These deployment options are not always mutually exclusive. In a server cluster with several nodes and multiple cluster groups it is possible that some groups will use one deployment option while other groups use a different one. Consider these options carefully when you design larger server clusters. N-Node Failover Pairs The N-node failover pairs deployment option specifies that two nodes and only two nodes may run the application. This is the simplest option and is in essence the only option available in a two-node server cluster. If configured in a larger server cluster with three or more nodes the application will not be able to function if both nodes are not operational. In larger server clusters made up of nodes with different processing capabilities or capacities you can use this option to limit an application to running on only the nodes capable of adequately servicing the application. An N-node failover pair is configured by specifying the two nodes in the Possible Owners property for the cluster resource as shown in Figure can set the Possible Owners property using the server cluster administrative tools described in the Server Cluster Administration section later in this chapter. Every cluster resource has a Possible Owners property that can be configured or left blank. Figure Setting the Possible Owners Property Figure illustrates an N-node failover configuration in a server cluster with four nodes A B C and D in its normal operational state. Nodes A and B are configured as a failover pair and nodes C and D are also a failover pair. Assorted .

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