A scalable resource group is used with scalable services. The shared address feature is the Oracle Solaris Cluster networking facility that enables the multiple instances of a scalable service to appear as a single service. You must first create a failover resource group that contains the shared addresses on which the scalable resources depend. Next, create a scalable resource group, and add scalable resources to that group. Each instance of the scalable service must run on a different cluster node.
# clresourcegroup create -S [-p Maximum_primaries=m] [-p Desired_primaries=n] \ [-n nodelist] resource-group
Specifies that the resource group is to be multi-mastered. If the –p Maximum_primaries and –p Desired_primaries options are omitted, both properties are set to the number of nodes in the resource group's node list.
Specifies the maximum number of active primaries for this resource group.
Specifies the number of active primaries on which the resource group should attempt to start.
Specifies a comma-separated, ordered list of nodes in which this resource group is to be available.
This list is optional. If you omit this list, the resource group is created on all nodes in the cluster.
Specifies your choice of the name of the scalable resource group to add. This name must begin with an ASCII character.
# clresourcegroup show resource-group
This example shows the creation of the scalable resource group resource-group-1. This resource group is to be hosted in the global cluster of nodes phys-schost-1 and phys-schost-2. The scalable resource group depends on the failover resource group resource-group-2, which contains the shared address resources.
# clresourcegroup create -S \ -p Maximum_primaries=2 \ -p Desired_primaries=2 \ -p RG_dependencies=resource-group-2 \ -n phys-schost-1, phys-schost-2 \ resource-group-1 # clresourcegroup show resource-group-1 === Resource Groups and Resources === Resource Group: resource-group-1 RG_description: <NULL> RG_mode: Scalable RG_state: Unmanaged RG_project_name: default RG_affinities: <NULL> Auto_start_on_new_cluster: True Failback: False Nodelist: phys-schost-1 phys-schost-2 Maximum_primaries: 2 Desired_primaries: 2 RG_dependencies: resource-group2 Implicit_network_dependencies: True Global_resources_used: <All> Pingpong_interval: 3600 Pathprefix: <NULL> RG_System: False Suspend_automatic_recovery: False
After you have created a scalable resource group, you can add scalable application resources to the resource group. See How to Add a Scalable Application Resource to a Resource Group for details.
The clresourcegroup(8CL) man page.