IMPORTANT:You must perform all Cluster Services configuration operations on the master node in the cluster. In iManager, select the Cluster object, not the Cluster Node objects.
Table 8-1 describes the configurable cluster policies. You can manage cluster policies in iManager by going to the page.
Table 8-1 Cluster Policies
|
Property |
Description |
|---|---|
|
Cluster IP address |
Specifies the IP address for the cluster. You specify the IP address when you install Novell Cluster Services on the first node of the cluster. Rarely, you might need to modify this value. For information, see Section 8.8, Modifying the Cluster IP Address and Port Properties. |
|
Port |
Specifies the port used for cluster communication. The default cluster port number is 7023, and is automatically assigned when the cluster is created. You might need to modify this value if there is a port conflict. For information, see Section 8.8, Modifying the Cluster IP Address and Port Properties. |
|
Quorum membership |
Specifies number of nodes that must be up and running in the cluster in order for cluster resources to begin loading. Specify a value between 1 and the number of nodes. For instructions, see Section 8.2, Configuring Quorum Membership and Timeout Properties. |
|
Quorum timeout |
Specifies the maximum amount of time in seconds to wait for the specified quorum to be met before cluster resources begin loading on whatever number of nodes are actually up and running. For instructions, see Section 8.2, Configuring Quorum Membership and Timeout Properties. |
|
Email notification |
Enables or disables email notification for the cluster. If it is enabled, you can specify up to eight administrator email addresses for cluster events notification. For instructions, see Section 8.4, Configuring Cluster Event Email Notification. |
Table 8-2 describes the configurable cluster protocols properties that govern inter-node communication transmission and tolerances. You can manage cluster protocols policies in iManager by going to the page. For instructions, see Section 8.3, Configuring Cluster Protocol Properties.
Table 8-2 Cluster Policies
|
Property |
Description |
|---|---|
|
Heartbeat |
Specifies the interval of time in seconds between signals sent by each of the non-master nodes in the cluster to the master node to indicate that it is alive. |
|
Tolerance |
Specifies the maximum amount of time in seconds that a master node waits to get an alive signal from a non-master node before considering that node to have failed and removing it from the cluster. The default is 8 seconds. |
|
Master watchdog |
Specifies the interval of time in seconds between alive signals sent from the master node to non-master nodes to indicate that it is alive. |
|
Slave watchdog |
Specifies the maximum amount of time in seconds that the non-master nodes wait to get an alive signal from the master node before considering that the master node has failed, assigning another node to become the master node, and removing the old master node from the cluster. |
|
Maximum retransmits |
This value is set by default and should not be changed. |