Sun Cluster 3.1 Data Services Developer's Guide

Resource Property Attributes

The following table describes the resource property attributes that can be used to change system-defined properties or create extension properties.

Caution – Caution –

You cannot specify NULL or the empty string ("") as the default value for boolean, enum, or int types.

Table A–4 Resource Property Attributes




The name of the resource property. 


If used, indicates that the RTR file entry declares an extension property defined by the resource type implementation. Otherwise, the entry is a system-defined property.  


A string annotation intended to be a brief description of the property. The description attribute cannot be set in the RTR file for system-defined properties. 

Type of the property 

Allowable types are: string, boolean, int, enum, and stringarray. you cannot set the type attribute in an RTR file entry for system-defined properties. The type determines acceptable property values and the type-specific attributes that are allowed in the RTR file entry. an enum type is a set of string values.


Indicates a default value for the property. 


Indicates when the cluster administrator can set the value of this property in a resource. Can be set to None or False to prevent the administrator from setting the property. Values that allow administrator tuning are: True or Anytime (at any time), At_creation (only when the resource is created), or When_disabled (when the resource is offline).


The default is True (Anytime).


For an enum type, a set of string values permitted for the property.


For an int type, the minimal value permitted for the property.


For an int type, the maximum value permitted for the property.


For string and stringarray types, the minimum string length permitted.


For string and stringarray types, the maximum string length permitted.


For stringarray type, the minimum number of array elements permitted.


For stringarray type, the maximum number of array elements permitted.