Use the extension properties in Extension Properties to create your resources. Use the command scrgadm -x parameter-value to configure extension properties when you create your resource. Use the procedure in “Administering Data Service Resources” in Sun Cluster Data Services Planning and Administration Guide for Solaris OS to configure the extension properties if you have already created your resources. You can update some extension properties dynamically. You can update others, however, only when you create or disable a resource. The Tunable entries indicate when you can update each property. See “Standard Properties” in Sun Cluster Data Services Planning and Administration Guide for Solaris OS for details on all Sun Cluster properties.