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Contents

  1. Preface
  2. Chapter 1 Understanding the Installation Flow
    1.  1.1 Workflow for the SPARC M10-4
    2. Click 1.2 Workflow When Installing the PCI Expansion Unit
  3. Chapter 2 Planning and Preparing for System Installation
    1.  2.1 Safety Precautions
    2.  2.2 Items Requiring Confirmation before Installation
    3. Click 2.3 Confirming the Physical Specifications of the System
    4. Click 2.4 Confirming Rack Specifications
    5. Click 2.5 Checking Environmental Conditions
    6.  2.6 Checking Acoustic Noise Levels
    7.  2.7 Checking Cooling Conditions
    8. Click 2.8 Checking the Power Input Type
    9. Click 2.9 Preparing Power Supply Facilities
    10. Click 2.10 Checking External Interface Port Specifications
    11.  2.11 Checking the Functions of the Operation Panel
  4. Chapter 3 Installing the System
    1.  3.1 Preparing the Necessary Tools/Information for Installation
    2. Click 3.2 Confirming Delivered Components
    3. Click 3.3 Mounting the Chassis in a Rack
    4. Click 3.4 Mounting Optional Components
  5. Chapter 4 Connecting Cables to the Chassis
    1.  4.1 Connecting Cables to the SPARC M10-4
    2.  4.2 Connecting Cables to the PCI Expansion Unit
  6. Chapter 5 Performing an Initial System Diagnosis
    1.  5.1 Connecting the System Management Terminal to the Chassis
    2.  5.2 Turning on the Input Power and Starting the XSCF
    3.  5.3 Logging In to the XSCF
    4.  5.4 Checking the XCP Version
    5.  5.5 Checking the Altitude Setting
    6.  5.6 Checking the Time Setting
    7.  5.7 Performing a Diagnosis Test
    8.  5.8 Checking the Component Status
  7. Chapter 6 Making the Initial System Settings
    1.  6.1 Setting the Password Policy
    2.  6.2 Setting a User Account and Password
    3. Click 6.3 Configuring the Telnet/SSH Service
    4.  6.4 Configuring the HTTPS Service
    5. Click 6.5 Configuring the XSCF Network
    6.  6.6 Configuring Memory Mirroring
    7.  6.7 Creating a Physical Partition Configuration List (PCL)
    8.  6.8 Confirming That a System Board (PSB) is Assigned to a Physical Partition (PPAR)
    9.  6.9 Setting a CPU Operational Mode for the Physical Partition
    10.  6.10 Synchronizing the Physical Partition (PPAR) Time and XSCF Time
    11. Click 6.11 Registering a CPU Activation Key
    12.  6.12 Assigning CPU Core Resources
    13.  6.13 Starting and Stopping a Physical Partition (PPAR)
    14. Click 6.14 Saving Configuration Information
  8. Appendix A Troubleshooting
    1.  A.1 Understanding the Usual Problems and Their Corrective Actions
    2. Click A.2 Understanding Commands for Troubleshooting
  9. Appendix B Setup Command Workflow
  10. Appendix C Installation Procedure Checklist

6.6 Configuring Memory Mirroring


6.6 Configuring Memory Mirroring
This section describes how to configure memory mirroring.
Note - The memory mirror configurations are optional.
The SPARC M10 systems support memory mirroring configurations to protect data through memory duplication. Data reliability increases, but the amount of available memory is halved.

The memory access controller controls writing of data to memory and reading of data from memory. The SPARC M10 systems configure the mirroring by grouping memory into sets controlled by two memory access controllers.
Note - The memory grouped together in a mirroring group must all have the same capacity and be the same rank.
  1. Execute the showfru command to check memory mirror mode.
    Memory mirror mode is set in the factory default settings.
XSCF> showfru -a
Device Location Memory Mirror Mode
sb 00-0
cpu 00-0-0 no
cpu 00-0-1 no
cpu 00-0-2 no
cpu 00-0-3 no
  1. Execute the setupfru command to configure memory mirroring.
XSCF> setupfru [-m {y|n}] device location
  1. To configure memory mirroring, specify -m y.
    For device, specify the device for which to configure the mirroring. To configure memory mirroring for all the CPUs mounted on the specified system board (PSB), specify sb. To configure it only for the specified CPU, specify cpu.
    For location, specify the location of the target device. You can specify it in the xx-0-z format. For xx, specify a system board number. For z, specify a CPU chip number from 0 to 3.
  1. The following example sets all the CPUs mounted on physical system board 00-0 to memory mirror mode.
XSCF> setupfru -m y sb 00-0
  1. Execute the showfru command to check the set memory mirror mode.
XSCF> showfru -a
Device Location Memory Mirror Mode
sb 00-0
cpu 00-0-0 yes
cpu 00-0-1 yes
cpu 00-0-2 yes
cpu 00-0-3 yes

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