Dell SE500W manual Resource Parameters, Quorum Disk Quorum Resource

Resource Parameters

The Parameters tab in the Properties dialog box is available for most resources. Table 5-3 lists each resource and its configurable parameters.

Table 5-3. Resources and Configurable Parameters

Resource	Configurable Parameters
File share	Share permissions and number of simultaneous users
	Share name (clients will detect the name in their browse or explore lists)
	Share comment
	Shared file path
IP address	IP address
	Subnet mask
	Network parameters for the IP address resource (specify the correct cluster
	network)
Network name	System name
Physical disk	Drive for the physical disk resource (the drive cannot be changed after the
	resource is created)

Quorum Disk (Quorum Resource)

The quorum resource is a common resource in the cluster that is accessible by all of the cluster nodes. Normally a physical disk on the shared storage, the quorum resource maintains data integrity, cluster unity, and cluster operations—such as forming or joining a cluster—by performing the following tasks:

•Enables a single node to gain and defend its physical control of the quorum resource — When the cluster is formed or when the cluster nodes fail to communicate, the quorum resource guarantees that only one set of active, communicating nodes is allowed to form a cluster.

•Maintains cluster unity — The quorum resource allows cluster nodes that can communicate with the node containing the quorum resource to remain in the cluster. If a cluster node fails for any reason and the cluster node containing the quorum resource is unable to communicate with the remaining nodes in the cluster, MSCS automatically shuts down the node that does not control the quorum resource.

•Stores the most current version of the cluster configuration database and state

data — If a cluster node fails, the configuration database helps the cluster recover a failed resource or recreates the cluster in its current configuration.

The only type of resource supported by the Cluster Service that can act as a quorum resource is the physical disk resource. However, developers can create their own quorum disk types for any resources that meet the arbitration and storage requirements.

Using MSCS

63