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Oracle Solaris Cluster Data Service for Oracle VM Server for SPARC Guide
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Document Information

Preface

Installing and Configuring HA for Logical Domains

Installing and Configuring HA for Logical Domains

HA for Logical Domains Overview

Planning the HA for Logical Domains Installation and Configuration

Configuration Restrictions

How to Configure Logical Domains to Reset for Control Domain Failures

Installing and Configuring Logical Domains

How to Install the Logical Domains Software

How to Enable the Logical Domains Instances to Run in a Cluster

Verifying the Installation and Configuration of Logical Domains

How to Verify the HA for Logical DomainsInstallation and Configuration

Installing the HA for Logical Domains Packages

How to Install the HA for Logical Domains Packages

Registering and Configuring HA for Logical Domains

How to Configure HA for Logical Domains

How to Remove a HA for Logical Domains Resource From a Failover Resource Group

Verifying the Installation and Configuration of Logical Domains

How to Verify the HA for Logical DomainsInstallation and Configuration

Tuning the HA for Logical Domains Fault Monitor

Resource Properties

Probing Algorithm and Functionality

Operations of the Logical Domains Probe

Debugging HA for Logical Domains

How to Activate Debugging for HA for Logical Domains

Index

Tuning the HA for Logical Domains Fault Monitor

This section describes the HA for Logical Domains fault monitor's probing algorithm or functionality, and states the conditions, messages, and recovery actions associated with unsuccessful probing.

For conceptual information about fault monitors, see the Oracle Solaris Cluster Concepts Guide.

Resource Properties

The HA for Logical Domains guest domain fault monitor uses the resource properties specified in the resource type SUNW.ldom. Refer to the SUNW.ldom(5) man page for a complete list of resource properties used.

Probing Algorithm and Functionality

HA for Logical Domains is controlled by the extension properties that control the probing frequency. The default values of these properties determine the preset behavior of the fault monitor and are suitable for most Oracle Solaris Cluster installations. You can modify this preset behavior by performing the following actions:

The HA for Logical Domains fault monitor checks the domain status within an infinite loop. During each cycle, the fault monitor checks the domain state and reports either a failure or success.

If the fault monitor is successful, it returns to its infinite loop and continues the next cycle of probing and sleeping.

If the fault monitor reports a failure, a request is made to the cluster to restart the resource. If the fault monitor reports another failure, another request is made to the cluster to restart the resource. This behavior continues whenever the fault monitor reports a failure. If successive restarts exceed the Retry_count within the Thorough_probe_interval, a request is made to fail over the resource group onto a different node.

Operations of the Logical Domains Probe