Resource Group Manager Administrative Interface

Sun Cluster provides both a graphical user interface (GUI) and a set of commands for administering a cluster.

SunPlex Manager

SunPlex Manager is a web-based tool that enables you to perform the following tasks:

• Install a cluster.

• Administer a cluster.

• Create and configure resources and resource groups.

• Configure data services with the Sun Cluster software.

See the Sun Cluster Software Installation Guide for Solaris OS for instructions on how to install SunPlex Manager and how to use SunPlex Manager to install cluster software. SunPlex Manager provides online help for most unique administrative tasks.

scsetup Utility

You can perform most Sun Cluster administration tasks interactively with the scsetup(1M) utility.

You can administer the following Sun Cluster elements with the scsetup utility:

• Quorum

• Resource groups

• Data services

• Cluster interconnect

• Device groups and volumes

• Private host names

• New nodes

• Other cluster properties

You can also perform the following operations with the scsetup utility:

• Create a resource group

• Add a network resource to a resource group

• Add a data service resource to a resource group

• Register a resource type

• Bring a resource group online or offline

• Switchover a resource group

• Enable or disable a resource

• Change resource group properties

• Change resource properties

• Remove a resource from a resource group

• Remove a resource group

• Clear the Stop_failed error flag from a resource

Administrative Commands

The Sun Cluster commands for administering RGM objects are scrgadm, scswitch, and scstat -g.

The scrgadm command enables you to view, create, configure, and delete a resource type, a resource group, and the resource objects that are used by the RGM. This command is part of the administrative interface for the cluster, but is not to be used in the same programming context as the application interface that is described in the rest of this chapter. However, scrgadm is the tool for constructing the cluster configuration in which the API operates. Understanding the administrative interface sets the context for understanding the application interface. See the scrgadm(1M) man page for details about the administrative tasks that you can perform with the command.

The scswitch command switches resource groups online and offline on specified nodes. This command also enables or disables a resource or its monitor. See the scswitch(1M) man page for details about the administrative tasks that the command can perform.

The scstat -g command shows the current dynamic state of all resource groups and resources. See the scstat(1M) man page for details about the administrative tasks that the command can perform.