Cluster Server 8.0 Configuration Guide for SAP Web Application Server - Windows
- Section I. Getting Started
- Introducing the Veritas High Availability Agent for SAP Web Application Server
- About the Veritas High Availability agent for SAP Web Application Server
- How application availability is achieved in a physical environment
- How does the Veritas High Availability solution work
- Agent functions
- Agent attributes for SAP Web Application Server
- Installing the agent for SAP Web Application Server
- Installing and configuring the SAP Web Application Server for high availability
- Monitoring an SAP instance
- About installing SAP Web Application Server for high availability
- About configuring SAP Web Application Server for high availability
- Setting up SAP systems for clustering
- Installing SAP system using Virtual Hostname
- Configuring the agent for message server restart
- Configuring the Enqueue Replication Server
- Clustering an SAP instance
- Introducing the Veritas High Availability Agent for SAP Web Application Server
- Section II. Configuring the application for high availability
- Section III. Troubleshooting the Agent
- Troubleshooting the agent for SAP Web Application Server
- Starting the SAP Web Application Server outside a cluster
- Troubleshooting common problems
- Unable to see an entry in the SAP MMC for an SAP instance
- The agent for SAP Web Application Server fails to bring online an SAP instance resource through VCS
- SAP instance does not come online, and the startsap.exe command exits with exit code -1
- In case of an Enqueue server failure, the Enqueue server instance fails to take over the lock table from the Enqueue Replication server instance
- The ensmon.exe command returns exit code 4 for a Enqueue server instance
- The return code of the ensmon.exe command is 8 for an Enqueue Replication server instance
- The Enqueue server instance does not fail over to the correct Enqueue Replication server instance
- In case of a resource fault, the Service Group does not fail over
- Reviewing SAP Web Application Server agent log files
- Reviewing error log files
- Checks for an SAP Add-In Usage Types
- Troubleshooting the agent for SAP Web Application Server
- Appendix A. Sample Configurations
Configuring application monitoring for SAP Web Application Server
Configuring an application for high availability involves the following tasks:
Configuring the VCS cluster
This task involves selecting the virtual machines on which you want to configure monitoring and setting up the network communication links between the selected virtual machines.
Configuring the application
This task involves configuring the application in one of the following modes:
Start/stop mode on a single system: In the event of a failure, the application is restarted on a virtual machine for a configured number of times.
Failover mode on multiple systems: In the event of a failure, the application is first restarted on a virtual machine for a configured number of times. If the application does not restart, the virtual machine fails over to another ESX host.
When configuring an application in the failover mode, you need to select the ESX hosts where the virtual machines can fail over.