Novell OPEN ENTERPRISE SERVER CLUSTER SERVICES 1.8.2 - ADMINISTRATION, Руководство пользователя, Страница: 44 / 61

44 OES Novell Cluster Services 1.8.2 Administration Guide for Linux
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2 Enter the cluster name or browse and select it, check the box next to the resource whose start,
failover, or failback modes you want to view or edit, then click the
Properties link.
3
Click the General tab.
4 From the list of unassigned nodes, select the server you want the resource assigned to, then
click the right-arrow button to move the selected server to the Assigned Nodes list.
Repeat this step for all servers you want assigned to the resource. You can also use the left-
arrow button to unassign servers from the resource.
5
Click the up-arrow and down-arrow buttons to change the failover order of the servers assigned
to the resource or volume.
6 Click Apply or Finish to save node assignment changes.
3.8 Configuration Settings
Depending on your needs and cluster setup, some additional configuration might be required for you
to effectively use Novell Cluster Services. This additional configuration might consist of changing
the values on some of the properties for the Cluster object and the Cluster Node objects.
3.8.1 Editing Quorum Membership and Timeout Properties
You can edit Quorum Membership and Timeout properties using iManager.
1 In the left column of the main iManager page, locate Clusters , then click the Cluster Options
link.
2 Enter the cluster name or browse and select it, then click the Properties button under the cluster
name.
3 Click the General tab.
In iManager, the same page used to edit quorum membership and timeout is also used for the
cluster IP address and port properties and for cluster e-mail notification.
Quorum Triggers (Number of Nodes)
This is the number of nodes that must be running in the cluster before resources will start to load.
When you first bring up servers in your cluster, Novell Cluster Services reads the number specified
in this field and waits until that number of servers is up and running in the cluster before it starts
loading resources.
Set this value to a number greater than 1 so that all resources don't automatically load on the first
server that is brought up in the cluster. For example, if you set the Number of Nodes value to 4, there
must be four servers up in the cluster before any resource will load and start.
Quorum Triggers (Timeout)
Timeout specifies the amount of time to wait for the number of servers defined in the Number of
Nodes field to be up and running. If the timeout period elapses before the quorum membership
reaches its specified number, resources will automatically start loading on the servers that are
currently up and running in the cluster. For example, if you specify a Number of Nodes value of 4
and a timeout value equal to 30 seconds, and after 30 seconds only two servers are up and running in
the cluster, resources will begin to load on the two servers that are up and running in the cluster.