Expert Advice

NAS_DVIPA_Port_Health_Percent  
Situation Description
Suggested Actions
Situation Description

The port health percent indicates the health of the server application on the target port. If several server applications share the port, it is the average of the individual values for all the server applications sharing the port.

 

Suggested Actions

Under normal circumstances or if the server is not providing this information to Workload Manager (WLM), the value of this field is 100, indicating that the server is 100% healthy. Any value that is less than 100 indicates that the server is experiencing problem conditions that might prevent new work requests from being successfully processed.

The health of the server is directly determined by information that the server application provides to WLM through programming interfaces. In this way, the WLM perceived health of the application depends directly on the amount of information that an application provides to WLM, if any. WLM uses this information to potentially reduce the weight recommendations for specific server applications that are experiencing problems. This enables sysplex distributor to direct fewer new TCP connections to these servers, selecting instead servers that are not experiencing these problems.

WLM considers the following components when determining the health of a server application:

  • Rate of abnormal transaction completions reported by the server application
  • General health of the application as reported by the server application

For more information regarding the conditions leading to abnormal transaction completions for a given server application, see the documentation provided by the server application.

 

Copyright IBM Corp. 2009 All Rights Reserved US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contact IBM