Resource Properties

None or False

Never. 

True or Anytime

Any time. 

At_creation

When the resource is added to a cluster. 

When_disabled

When the resource is disabled. 

Cheap_probe_interval (integer)

The number of seconds between invocations of a quick fault probe of the resource. This property is only created by the RGM and available to the administrator if it is declared in the RTR file. 

This property is optional if a default value is specified in the RTR file. If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is When_disabled.

This property is required if the Default attribute is not specified in the property declaration in the RTR file.

When disabled  

Conditional 

Extension properties 

Extension properties as declared in the RTR file of the resource's type. The implementation of the resource type defines these properties. For information on the individual attributes you can set for extension properties. see Table A-4.

Depends on the specific property 

Conditional 

Failover_mode (enum)

Controls whether the RGM relocates a resource group or aborts a node in response to a failure of a START or STOP method call on the resource. None indicates that the RGM should just set the resource state on method failure and wait for operator intervention. Soft indicates that failure of a START method should cause the RGM to relocate the resource's group to a different node while failure of a STOP method should cause the RGM to set the resource state and wait for operator intervention. Hard indicates that failure of a START method should cause the relocation of the group and failure of a STOP method should cause the forcible stop of the resource by aborting the cluster node.

The default is None.

Any time 

Optional 

Load_balancing_policy (string)

A string that defines the load-balancing policy in use. This property is used only for scalable services. The RGM automatically creates this property if the Scalable property is declared in the RTR file.

Load_balancing_policy can take the following values: 

Lb_weighted (the default). The load is distributed among various nodes according to the weights set in the Load_balancing_weights property.

Lb_sticky. A given client (identified by the client IP address) of the scalable service is always sent to the same node of the cluster.

Lb_sticky_wild. A given client (identified by the client's IP address), that connects to an IP address of a wildcard sticky service, is always sent to the same cluster node regardless of the port number it is coming to.

The default value is Lb_weighted.

At creation 

Conditional Optional 

Load_balancing_weights (string array)

For scalable resources only. The RGM automatically creates this property if the Scalable property is declared in the RTR file. The format is weight@node,weight@node, where weight is an integer that reflects the relative portion of load distributed to the specified node. The fraction of load distributed to a node is the weight for this node divided by the sum of all weights. For example, 1@1,3@2 specifies that node 1 receives 1/4 of the load and node 2 receives 3/4. The empty string (""), the default, sets a uniform distribution. Any node that is not assigned an explicit weight, receives a default weight of 1.

If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is Anytime. Changing this property revises the distribution for new connections only.

The default value is the empty string (""). 

Any time 

Conditional Optional 

method_timeout for each callback method in the Type. (integer)

A time lapse, in seconds, after which the RGM concludes that an invocation of the method has failed.  

The default is 3,600 (one hour) if the method itself is declared in the RTR file. 

Any time 

Conditional 

Optional 

Monitored_switch (enum)

Set to Enabled or Disabled by the RGM if the cluster administrator enables or disables the monitor with an administrative utility. If Disabled, the monitor does not have its START method called until it is enabled again. If the resource does not have a monitor callback method, this property does not exist.

The default is Enabled.

Never 

Query-only 

Network_resources_used (string array)

A list of logical host name or shared address network resources used by the resource. For scalable services, this property must refer to shared address resources that exist in a separate resource group. For failover services, this property refers to logical host name or shared address resources that exist in the same resource group. The RGM automatically creates this property if the Scalable property is declared in the RTR file. If Scalable is not declared in the RTR file, Network_resources_used is unavailable unless it is explicitly declared in the RTR file.

If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is At_creation.

At creation 

Conditional Required 

On_off_switch (enum)

Set to Enabled or Disabled by the RGM if the cluster administrator enables or disables the resource with an administrative utility. If disabled, a resource has no callbacks invoked until it is enabled again.

The default is Disabled.

Never 

Query-only 

Port_list (string array)

A comma-separated list of port numbers on which the server is listening. Appended to each port number is the protocol being used by that port, for example, Port_list=80/tcp. If the Scalable property is declared in the RTR file, the RGM automatically creates Port_list; otherwise, this property is unavailable unless it is explicitly declared in the RTR file.

For specifics on setting up this property for Apache, see the Apache chapter in the Sun Cluster 3.0 12/01 Data Services Installation and Configuration Guide.

At creation 

Conditional 

Required 

R_description (string)

A brief description of the resource. 

The default is the empty string. 

Any time 

Optional 

Resource_dependencies (string array)

A list of resources in the same group that must be online in order for this resource to be online. This resource cannot be started if the start of any resource in the list fails. When bringing the group offline, this resource is stopped before those in the list. Resources in the list are not allowed to be disabled unless this resource is disabled first. 

The default is the empty list. 

Any time 

Optional 

Resource_dependencies_ weak (string array)

A list of resources in the same group that determines the order of method calls within the group. The RGM calls the START methods of the resources in this list before the START method of this resource and the STOP methods of this resource before the STOP methods of those in the list. The resource can still be online if those in the list fail to start or are disabled.

The default is the empty list. 

Any time 

Optional 

Resource_name (string)

The name of the resource instance. Must be unique within the cluster configuration and cannot be changed after a resource has been created. 

Never 

Required 

Resource_state: on each cluster node (enum)

The RGM-determined state of the resource on each cluster node. Possible states are: Online, Offline, Stop_failed, Start_failed, Monitor_failed, and Online_not_monitored.

This property is not user configurable. 

Never 

Query-only 

Retry_count (integer)

The number of times a monitor attempts to restart a resource if it fails. This property is created by the RGM only and available to the administrator if it is declared in the RTR file. It is optional if a default value is specified in the RTR file. 

If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is When_disabled.

This property is required if the Default attribute is not specified in the property declaration in the RTR file.

When disabled 

Conditional 

Retry_interval (integer)

The number of seconds over which to count attempts to restart a failed resource. The resource monitor uses this property in conjunction with Retry_count. This property is created by the RGM only and available to the administrator if it is declared in the RTR file. It is optional if a default value is specified in the RTR file.

If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is When_disabled.

This property is required if the Default attribute is not specified in the property declaration in the RTR file.

When disabled 

Conditional 

Scalable (Boolean)

Indicates whether the resource is scalable. If this property is declared in the RTR file, the RGM automatically creates the following scalable service properties for resources of that type: Network_resources_used, Port_list, Load_balancing_policy, and Load_balancing_weights. These properties have their default values unless they are explicitly declared in the RTR file. The default for Scalable--when it is declared in the RTR file--is True.

When this property is declared in RTR file, the Tunable attribute must be set to At_creation or resource creation fails.

If this property is not declared in the RTR file, the resource is not scalable, the cluster administrator cannot tune this property and no scalable service properties are set by the RGM. However, you can explicitly declare the Network_resources_used and Port_list properties in the RTR file, if desired, because they can be useful in a non-scalable service as well as in a scalable service.

At creation 

Optional 

Status: on each cluster node (enum)

Set by the resource monitor. Possible values are: OK, degraded, faulted, unknown, and offline. The RGM sets the value to unknown when the resource is brought online and to Offline when it is brought offline.

Never 

Query-only 

Status_msg: on each cluster node (string)

Set by the resource monitor at the same time as the Status property. This property is settable per resource per node. The RGM sets it to the empty string when the resource is brought offline.

Never 

Query-only 

Thorough_probe_interval (integer)

The number of seconds between invocations of a high-overhead fault probe of the resource. This property is created by the RGM only and available to the administrator if it is declared in the RTR file. It is optional if a default value is specified in the RTR file. 

If the Tunable attribute is not specified in the resource type file, the Tunable value for the property is When_disabled.

This property is required if the Default attribute is not specified in the property declaration in the RTR file.

When disabled 

Conditional 

Type (string)

The resource type of which this resource is an instance. 

Never 

Required