WLOC Administration Console Online Help

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Configure and manage Agents

The WLOC environment includes one or more Agents that manage the resources that are available to services and communicate this information to the Controller. To manage resources, an Agent performs the following tasks:

Types of Agents

WLOC enables you to define two types of agents:

Type of Agent Description

Plain Agent

Manages the computing resources for the physical machine on which the Agent is installed. You can configure a plain Agent to allocate all or a subset of the available machine resources to WLOC services.

ESX Agent

Manages a pool of resources from a VMware ESX Server resource pool. An ESX Agent does not need to run on a specific physical machine. It communicates with the VMware Virtual Center (hypervisor software that controls instances of ESX Server) to discover the capabilities of the resource pool. An ESX Agent allocates all of the resources that the ESX Server resource pool exposes for hosting services, regardless of the underlying physical implementation. For example, an ESX Agent can pool resources from multiple physical machines or it can split a single physical machine into multiple pools.

Each type of Agent communicates with the Controller to describe the following types of resources on the machines that it manages:

The manner in which an Agent describes its resource inventory depends on the type of Agent, as follows:

See also Configuring the Controller and Agents. For more information about WLS-VE and the VMware VirtualCenter and data center, see BEA WebLogic Server Virtual Edition (WLS-VE) 9.2 V1.1.

Steps to Configure and Manage Agents

You create new Agents using the WLOC Configuration Wizard, as described in Configuring the Controller and Agents. After you create an Agent, you can update its configuration, as described in the following sections. The process varies slightly based on whether you are defining a plain or ESX Agent.

Related Tasks:

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