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Contents

  1. Preface
  2. Chapter 1 Understanding an Overview of Domain Configuration
    1. Click 1.1 SPARC M12/M10 Domain Configurations
    2.  1.2 SPARC M12/M10 Hardware Resources
    3. Click 1.3 What is a Physical Partition?
    4. Click 1.4 What is a Logical Domain?
    5. Click 1.5 What is Physical Partition Dynamic Reconfiguration?
    6. Click 1.6 Mixed Use of the SPARC64 X+ Processor and SPARC64 X Processor
  3. Chapter 2 Conditions and Settings for System Operation
    1. Click 2.1 XSCF Status Management
    2. Click 2.2 XSCF Conditions and Settings
    3. Click 2.3 Oracle Solaris Conditions and Settings
    4. Click 2.4 Logical Domain Conditions and Settings
    5. Click 2.5 Dynamic Reconfiguration Conditions and Settings
    6. Click 2.6 Considerations When Using the SPARC64 X+ Processor
  4. Chapter 3 Operations for Domain Configuration
    1. Click 3.1 Operations and Commands Related to Physical Partition Configurations
    2. Click 3.2 Operations and Commands Related to Logical Domain Configurations
  5. Chapter 4 Configuring a Physical Partition
    1.  4.1 Physical Partition Configuration Flow
    2.  4.2 Configuring and Operating a Physical Partition
  6. Chapter 5 Logical Domain Configuration Example
    1.  5.1 Logical Domain Configuration Flow
    2. Click 5.2 Example of Logical Domain Configuration Operations
  7. Chapter 6 Physical Partition Reconfiguration
    1. Click 6.1 Flow for Physical Partition Reconfiguration
    2. Click 6.2 Example of System Board Addition
    3. Click 6.3 Example of Operations for Deleting a System Board
    4.  6.4 Example of Operations for Moving a System Board
    5.  6.5 Example of Operations for Replacing a System Board
    6.  6.6 Considerations When Changing a Physical Partition Number
  8. Chapter 7 Migrating a Guest Domain
    1. Click 7.1 Overview
    2.  7.2 Migrating a Guest Domain
    3.  7.3 Guest Domain Migration Example
  9. Appendix A Environment Configuration Examples and Procedures Using Physical Partition Dynamic Reconfiguration
    1. Click A.1 Updating a System That Does Not Support Physical Partition Dynamic Reconfiguration to One That Does Support It
    2. Click A.2 For New Installations from XCP 2220 or Later, Where the Logical Domain Configuration Has No Free Space for Hardware Resources
    3. Click A.3 For New Installations from XCP 2220 or Later, Where the Logical Domain Configuration Has Free Hardware Resources
    4. Click A.4 For Expansion of a Newly Installed System of Version XCP 2220 or Later from the 1BB to 2BB Configuration
    5. Click A.5 For Installation of the System Board Configured by the SPARC64 X+ Processor to the Physical Partition Configured Only by the SPARC64 X Processor
    6. Click A.6 For Active Replacement of a System Board in a Configuration with Only the Control Domain (for Oracle VM Server for SPARC 3.2 or Later)
  10. Appendix B Supplementary Information for Using Dynamic Reconfiguration
    1. Click B.1 Considerations for the XSCF Reboot or Failover Time
    2.  B.2 Supplementary Information on CPU Operational Mode
    3.  B.3 Other Considerations
  11. Appendix C Meanings of Messages and Corresponding Corrective Action
    1. Click C.1 Command Messages

7.1 Overview


7.1 Overview
The live migration function migrates a guest domain from one physical partition to another while the guest domain continues operating. The live migration function is used for the following purposes.
  1. Adjusting the load between physical partitions
    The overall system load is adjusted by the migration of a guest domain from a physical partition that has a heavy load to a physical partition that has a lower load.
  2. Maintaining hardware while a guest domain is operating
    To release a system board from a physical partition for maintenance purposes, a guest domain operating in the physical partition is migrated to a different physical partition.
Upon execution of the live migration function, Logical Domains Manager on the source physical partition communicates with that on the destination physical partition to execute the following processes:
  1. In the destination physical partition, configure a guest domain with the same configuration as that in the source physical partition.
  2. Copy information from the source guest domain to the destination guest domain. Execution on the source guest domain continues.
  3. When the copying ends, delete the source logical domain, and start execution on the destination logical domain.
A logical domain can be migrated within the same system and also between different systems. Figure 7-1 shows migration within the same system. Figure 7-2 shows migration between different systems.
Figure 7-1  Migration Within the Same System
Figure 7-1 Migration Within the Same System
Figure 7-2  Migration Between Different Systems
Figure 7-2 Migration Between Different Systems

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