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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

1.4.1 Understanding Logical Domain Components


1.4.1 Understanding Logical Domain Components
A logical domain consists of virtual CPUs, virtual memory, and virtual I/Os.
  1. Virtual CPU
    A CPU can be assigned to a logical domain in units of virtual CPUs (threads). In the SPARC M12/M10 system, one physical CPU (i.e., one socket) has multiple cores, each of which has threads. This means that a physical CPU has as many virtual CPUs as the number of threads. You can assign these virtual CPUs to a logical domain. Normally, assign the virtual CPUs to a logical domain in units of cores, considering the logical domain performance.
  2. Virtual memory
    Memory can be assigned to a logical domain in units of 256 MB.
  3. Virtual I/O
    I/O can be assigned to a logical domain in units of virtual I/Os. For example, a virtual disk is one virtual I/O, which can be used as a:
    - Physical disk

    - Physical disk slice

    - File from a file system such as ZFS or UFS

    - Logical volume from the ZFS or another volume manager
Logical domains are categorized by role as follows.
  1. Control domain
    A control domain is a logical domain that creates and manages other logical domains and assigns resources to the logical domains. Each physical partition has only one control domain. Oracle VM Server for SPARC is installed on the control domain, where the management software Logical Domains Manager is running.
  2. I/O domain
    An I/O domain is a logical domain that provides virtual device services. The virtual device services include a disk, network, and console.
  3. Root domain
    A root domain is an I/O domain to which a PCIe root complex is assigned. A PCIe root complex is an entire PCIe bus, consisting of the PCIe bus, all PCI switches, and devices. Physical I/O devices belong to the root domain, which accesses them directly.
  4. Guest domain
    A guest domain is a logical domain controlled by the control domain. It uses virtual device services from an I/O domain. Normally, middleware and application programs run on the guest domain. Oracle Solaris runs independently on the guest domain, which can thus start and stop without affecting other guest domains. Virtual CPUs, virtual memory, and virtual I/Os can be dynamically added to and deleted from the guest domain.
  5. Service domain
    Service domain is a generic term for a domain that provides services to a guest domain. Specifically, it includes I/O and root domains.
Figure 1-18  Concept of the Relationship Between Logical Domains
Figure 1-18 Concept of the Relationship Between Logical Domains

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