WebSphere Extended Deployment, Version 6.0.x
             Operating Systems: AIX, HP-UX, Linux, Solaris, Windows, z/OS


Dynamic operations environment

The dynamic operations environment, consisting of the autonomic, or on demand, features of WebSphere Extended Deployment supports three modes of operation: manual, supervised, and automatic.

Defining the mode of the operating environment involves configuring the WebSphere Extended Deployment components. You might find that you want a mixed environment, with some components running automatically, or autonomically, while others are not. Flexibility is built into the product to support logical systems, rather than a switch to turn things on or off. In addition, WebSphere Extended Deployment supports a supervised operating mode, where the system administrator accepts or denies the recommendations of the autonomic managers.

The following are the features of the dynamic operations, as well as the operating modes they support:
Autonomic manager Description
Application placement controller Characteristics:
  • Supports two modes: enabled or disabled.

    If enabled, the application placement controller supports automatic, supervised, and manual mode for each dynamic cluster with which it is affiliated. The mode is set on the dynamic cluster.

  • Applicable to a node group, and as a result a dynamic cluster.
  • Not autonomous functionality, as this is dependent upon the dynamic cluster setting.
Autonomic request flow manager (ARFM) Characteristics:
  • Supports two modes: manual or automatic.
  • Applicable to a node group.
  • Autonomous functionality, as this can be enabled individually.
Dynamic WLM (DWLM) Characteristics:
  • Supports two modes: enabled or disabled.
  • Applicable to static clusters and dynamic clusters. DWLM is enabled on dynamic clusters by default, and disabled on static clusters by default. To enable DWLM on a static cluster, click Servers > Clusters > cluster_name > Dynamic WLM. To disable DWLM on a dynamic cluster, click Servers > Dynamic Clusters > dynamic_cluster_name > Dynamic WLM.
  • Autonomous functionality, as this can be enabled individually.
Health Controller Characteristics:
  • Supports two modes: enabled or disabled.
  • Applicable to a cell, or subset of a cell.
  • Autonomous functionality, as this can be enabled individually.

It is clear from the previous table that WebSphere Extended Deployment is flexible in allowing the autonomic features of the product to be integrated into customer environments. It is likely that customers interested in exploiting the autonomic features will want to take full advantage of most, if not all of them. By providing control at this level of granularity, WebSphere Extended Deployment allows easier problem determination and a greater ability to customize the product to match customer environments.




Related concepts
Overview of dynamic operations
Dynamic workload management
Related tasks
Configuring the autonomic request flow manager
Configuring dynamic application placement
Configuring the health management controller
Creating dynamic clusters
Related reference
Static clusters versus dynamic clusters
Concept topic    

Terms of Use | Feedback

Last updated: Nov 30, 2007 3:56:25 PM EST
http://publib.boulder.ibm.com/infocenter/wxdinfo/v6r0/index.jsp?topic=/com.ibm.websphere.xd.doc/info/prodovr/codoemodes.html