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Oracle VM Server for SPARC 2.0 Administration Guide
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Document Information

Preface

1.  Overview of the Oracle VM Server for SPARC Software

2.  Installing and Enabling Software

3.  Security

4.  Setting Up Services and the Control Domain

5.  Setting Up Guest Domains

6.  Setting Up I/O Domains

7.  Using Virtual Disks

8.  Using Virtual Networks

9.  Migrating Domains

10.  Managing Resources

11.  Managing Configurations

Saving Domain Configurations for Future Rebuilding

Save Domain Configurations

Restore a Domain Configuration From an XML File (ldm add-domain)

Restore a Domain Configuration From an XML File (ldm init-system)

Managing Logical Domains Configurations

Modify the Autorecovery Policy

12.  Performing Other Administration Tasks

A.  Oracle VM Server for SPARC Physical-to-Virtual Conversion Tool

B.  Oracle VM Server for SPARC Configuration Assistant

C.  Logical Domains Manager Discovery

D.  Using the XML Interface With the Logical Domains Manager

E.  Logical Domains Manager XML Schemas

Glossary

Index

Saving Domain Configurations for Future Rebuilding

The basic process is to save the resource constraints information for each domain into an XML file, which can then be re-issued to the Logical Domains Manager, for example, after a hardware failure to rebuild a desired configuration.

Restore a Domain Configuration From an XML File (ldm add-domain) works for guest domains, but not for the control (primary) domain. You can save the primary domain's constraints to an XML file, but you cannot feed the file back into the ldm add-domain -i command. However, you can use the ldm init-system command and the resource constraints from the XML file to reconfigure your primary domain. You can also use the ldm init-system command to reconfigure other domains that are described in the XML file, but those domains are left inactive when the configuration is complete.

The method that follows does not preserve actual bindings, only the constraints used to create those bindings. This means that, after this procedure, the domains will have the same virtual resources, but will not necessarily be bound to the same physical resources.

Save Domain Configurations

This procedure shows how to save a domain configuration for a single domain or for all the domains on a system.

Restore a Domain Configuration From an XML File (ldm add-domain)

Instead of this procedure, you can use the ldm init-system command to restore domain configurations from an XML file. See Restore a Domain Configuration From an XML File (ldm init-system).

  1. Create the domain by using the XML file that you created as input.
    # ldm add-domain -i ldom.xml
  2. Bind the domain.
    # ldm bind-domain ldom
  3. Start the domain.
    # ldm start-domain ldom

Example 11-1 Restoring a Single Domain From an XML File

The following example shows how to restore a single domain. First, you restore the ldg1 domain from the XML file. Then, you bind and restart the ldg1 domain that you restored.

# ldm add-domain -i ldg1.xml
# ldm bind ldg1
# ldm start ldg1

Restore a Domain Configuration From an XML File (ldm init-system)

This procedure explains how to use the ldm init-system command with an XML file to re-create a previously saved configuration. The XML file describes one or more domain configurations. The XML file can be created by running the ldm ls-constraints -x command. The ldm init-system command is expected to be run in the factory-default configuration, but it can restore any configuration from an XML file. The primary domain is reconfigured as specified in the file, and any non-primary domains that have configurations in the XML file are reconfigured but left inactive.

Instead of this procedure, you can use the ldm add-domain command to restore a single domain configuration from an XML file. See Restore a Domain Configuration From an XML File (ldm add-domain).

  1. Log in to the primary domain.
  2. Verify that the system is in the factory-default configuration.
    primary# ldm list-config | grep "factory-default"
    factory-default [current]

    If the system is not in the factory-default configuration, see Restore the Factory Default Configuration.

  3. Become superuser or assume an equivalent role.

    Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

  4. Restore the domain configuration or configurations from the XML file.
    # ldm init-system [-rs] -i filename.xml

    The -r option reboots the primary domain after the configuration. If you do not specify the -r option, you must perform the reboot manually. The -s option restores only the virtual services configuration (vds, vcc, and vsw) and might be able to be performed without having to reboot.

Example 11-2 Restoring Domains From XML Configuration Files

The following examples show how to use the ldm init-system command to restore the primary domain and all the domains on a system from the factory-default configuration.