Resource Type Properties
Table A-1 describes the resource type properties defined by Sun Cluster. The property values are categorized as follows.
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Required - The property requires an explicit value in the Resource Type Registration (RTR) file or the object that it belongs to cannot be created. A blank or the empty string is not allowed as a value.
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Conditional - To exist, the property must be declared in the RTR file; otherwise, the Resource Group Manager (RGM) does not create it and it is not available to administrative utilities. A blank or the empty string is allowed. If the property is declared in the RTR file but no value is specified, the RGM supplies a default value.
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Conditional/Explicit - To exist, the property must be declared in the RTR file with an explicit value; otherwise, the RGM does not create it and it is not available to administrative utilities. A blank or the empty string is not allowed.
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Optional - The property can be declared in the RTR file,; if it isn't, the RGM creates it and supplies a default value. If the property is declared in the RTR file but no value is specified, the RGM supplies the same default value as if the property were not declared in the RTR file.
Resource type properties are not updatable by administrative utilities with the exception of Installed_nodes, which cannot be declared in the RTR file and must be set by the administrator.
Table A-1 Resource Type Properties|
Property Name |
Description |
|---|---|
|
API_version (integer) |
The version of the resource management API used by this resource type implementation.
Category: Optional Default: 2 Tunable: Never |
|
BOOT (string) |
An optional callback method. The path to the program that the RGM starts on a node, which joins or rejoins the cluster when a resource of this type is already managed. This method is expected to initialize resources of this type similar to the INIT method.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Failover (Boolean) |
True indicates that resources of this type cannot be configured in any group that can be online on multiple nodes at once.
Category: Optional Default: False Tunable: Never |
|
FINI (string) |
An optional callback method. The path to the program that the RGM starts when a resource of this type is removed from RGM management.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
INIT (string) |
An optional callback method. The path to the program that the RGM starts when a resource of this type becomes managed by the RGM.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Init_nodes (enum) |
Indicates the nodes on which the RGM is to call the INIT, FINI, BOOT and VALIDATE methods. The values can be RG_primaries (just the nodes that can master the resource) or RT_installed_nodes (all nodes on which the resource type is installed).
Category: Optional Default: RG_primaries Tunable: Never |
|
Installed_nodes (string array) |
A list of the cluster node names that the resource type is allowed to be run on. The RGM automatically creates this property. The cluster administrator can set the value. You cannot declare this property in the RTR file.
Category: Configurable by cluster administrator Default: All cluster nodes Tunable: Any time |
|
Monitor_check (string) |
An optional callback method. The path to the program that the RGM starts before performing a monitor-requested failover of a resource of this type.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Monitor_start (string) |
An optional callback method. The path to the program that the RGM activates to start a fault monitor for a resource of this type.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Monitor_stop (string) |
A callback method that is required if Monitor_start is set. The path to the program that the RGM activates to stop a fault monitor for a resource of this type.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Pkglist (string array) |
An optional list of packages that are included in the resource type installation.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Postnet_stop (string) |
An optional callback method. The path to the program that the RGM starts after calling the STOP method of any network-address resources (Network_resources_used) that a resource of this type is dependent on. This method is expected to do STOP actions that must be done after the network interfaces are configured down.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Prenet_start (string) |
An optional callback method. The path to the program that the RGM starts before calling the START method of any network-address resources (Network_resources_used) that a resource of this type is dependent on. This method is expected to do START actions that must be done before network interfaces are configured up.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
RT_basedir (string) |
The directory path that is used to complete relative paths for callback methods. This path is expected to be set to the installation location for the resource type packages. It must be a complete path, that is, it must start with a forward slash (/). This property is not required if all the method path names are absolute.
Category: Required (unless all method path names are absolute) Default: No Default Tunable: Never |
|
RT_description (string) |
A brief description of the resource type.
Category: Conditional Default: The empty string Tunable: Never |
|
Resource_type (string) |
The name of the resource type. Must be unique in the cluster installation. You must declare this property as the first entry in the RTR file; otherwise, registration of the resource type fails.
In addition, you can specify Vendor_id to identify the resource type. Vendor_id serves as a prefix that is separated from a resource type name by a ".", for example, SUNW.http. You can completely identify the resource type with Resource_type and Vendor_id or omit Vendor_id. For example, both SUNW.http and http are valid. If you specify the Vendor_id, use the stock symbol for the company that defines the resource type. If two resource-types in the cluster differ only in the Vendor_id prefix, the use of the abbreviated name fails.
Category: Required Default: The empty string Tunable: Never |
|
RT_version (string) |
An optional version string of this resource type implementation.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Single_instance (Boolean) |
If True, indicates that only one resource of this type can exist in the cluster. Hence, the RGM allows only one resource of this type to run cluster-wide at one time.
Category: Optional Default: False Tunable: Never |
|
START (string) |
A callback method. The path to the program that the RGM activates to start a resource of this type.
Category: Required (unless the RTR file declares a PRENET_START method) Default: No Default Tunable: Never |
|
STOP (string) |
A callback method. The path to the program that the RGM activates to stop a resource of this type.
Category: Required (unless the RTR file declares a POSTNET_STOP method) Default: No Default Tunable: Never |
|
UPDATE (string) |
An optional callback method. The path to the program that the RGM starts when properties of a running resource of this type are changed.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
VALIDATE (string) |
An optional callback method. The path to the program that will be invoked to check values for properties of resources of this type.
Category: Conditional/Explicit Default: No Default Tunable: Never |
|
Vendor_ID (string) |
See the Resource_type property.
Category: Conditional Default: No Default Tunable: Never |
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