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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

1.5.3 Dynamic Reconfiguration of CPUs and Memory


1.5.3 Dynamic Reconfiguration of CPUs and Memory
Adding or deleting a CPU
Oracle VM Server for SPARC automatically recognizes and makes available any CPUs added through physical partition dynamic reconfiguration.

One of the following operations is performed for any system board (PSB<BB>) incorporated or CPU added through physical partition dynamic reconfiguration.
  1. If the PSB (BB) is added to a physical partition with logical domain configuration information set to factory-default (configuration at factory shipment), all mounted CPUs on the added PSB (BB) are automatically added to the control domain.
  2. If a new PSB (BB) is added to a physical partition with logical domains configured or logical domain configuration information saved, the mounted CPUs on the PSB (BB) are not assigned to any of the logical domains. To use these CPUs, you need to add them to a logical domain by using the ldm command.
  3. If you release a PSB (BB) from a physical partition with logical domains configured,  the CPU assignment of the logical domains is automatically deleted as a result when you replace the PSB (BB). In that case, adding a PSB (BB) automatically adds as many CPUs as were deleted to the logical domains.
To delete a CPU through dynamic reconfiguration, the following conditions must be met. If the conditions are not met, dynamic reconfiguration processing of the physical partition stops and a message appears.
  1. No running processes are bound to the CPU to be deleted.
    If any process is bound, you need to release the binding of the process or stop the process.
  2. The CPU to be deleted does not belong to any processor set.
    If the CPU belongs to any processor set, you need to delete it from the processor set in advance by using the psrset command.
  3. A CPU core is assigned to the logical domains without the core ID (CID) specified in the ldm add-core command or the ldm set-core command.
If the above conditions are not met when logical domain resources are deleted and a system board is released during physical partition dynamic reconfiguration, physical partition dynamic reconfiguration processing stops and a message appears.
Adding or deleting memory
One of the following operations is performed for any system board (PSB<BB>) incorporated or memory added through physical partition dynamic reconfiguration.
  1. If the PSB (BB) is added to a physical partition with logical domain configuration information set to factory-default (configuration at factory shipment), all mounted memory on the added PSB (BB) is automatically added to the control domain.
  1. If a new PSB (BB) is added to a physical partition with logical domains configured or logical domain configuration information saved, the mounted memory on the PSB (BB) is not assigned to any of the logical domains. To use this memory, you need to add it to the logical domains by using the ldm command.
  1. If you release a PSB (BB) from a physical partition with logical domains configured, when you replace the PSB (BB), the memory assignment of the logical domains is automatically deleted as a result. In that case, adding a PSB (BB) automatically adds the same size memory as was deleted to the logical domains.
    Before deleting the PSB (BB) through physical partition dynamic reconfiguration, note the following:
    - If the memory with the specified physical address has been assigned to a logical domain by the mblock option of the ldm add-memory command or ldm set-memory command, do not delete the PSB (BB) through physical partition dynamic reconfiguration.

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