Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 72)

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 recreate the
cluster in its current configuration.
The only type of resource supported by MSCS 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 the Quorum Disk for Cluster Integrity
The quorum disk is also used to ensure cluster integrity by performing the following functions:
Maintaining the cluster node database
Ensuring cluster unity
When a node joins or forms a cluster, MSCS must update the node's private copy of the cluster database. When a node joins