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8.2.2 Points of concern during expansion


8.2.2 Points of concern during expansion
Before adding the SPARC M10-4S/crossbar box, check the following items, which are points of concern.
  1. Before adding the SPARC M10-4S, save the system setting information with the dumpconfig command. In case of resetting the configuration to the original setting, you can restore the saved setting information to XSCF by using the restoreconfig command.
  2. Before adding the SPARC M10-4S, execute the showcodusage command to check the number of CPU Activations registered in the entire system.
    If the number of CPU Activations registered in the system is not enough when compared to the number of added CPU cores, you need to purchase a CPU Activation key and execute the addcodactivation command to add the CPU Activation key to the system. For details on adding a CPU Activation key, see "7.11.3 Registering a CPU Activation key."
  3. To make CPU core resources ready for use after registering a CPU Activation key, you need to set the number of CPU Activations in a physical partition and assign CPU core resources by using the setcod command.
  4. Any expansion from the 4BB configuration (direct connections between chassis) to the 8BB configuration requires the new installation of expansion rack 1. For details of expansion racks, see "2.4 Confirming Rack Specifications."
  5. Any expansion from the 4BB configuration (direct connections between chassis) to the 8BB configuration changes the master chassis from the SPARC M10-4S to a crossbar box mounted in an expansion rack. The existing SPARC M10-4S must be released from the system before the addition of the expansion rack.
    Multiple SPARC M10-4S units cannot be released at the same time. Do this work on one unit at a time.
  6. Any expansion from the 8BB configuration to the 9BB configuration or larger requires the new installation of expansion rack 2. For details of expansion racks, see "2.4 Confirming Rack Specifications."
  7. Any expansion from the 8BB configuration to the 9BB configuration or larger requires special attention because crossbar cables (optical) need to be laid all over again.
  8. Executing the addfru command for addition automatically updates firmware to match firmware versions. The update matches the version on the master XSCF, so we recommend updating XCP on the master XSCF to the latest version in advance.
  9. Suppose you add the SPARC M10-4S together with a PCI expansion unit connected to it and enable/disable the direct I/O function of the PCI expansion unit. In this case, execute the setpciboxdio command to enable/disable it before executing the addboard command for incorporation into the physical partition. Set the setting. When you have changed the setting of the direct I/O function, do not restart the logical domains until you execute the ldm add-spconfig command to save the logical domain configuration in XSCF.
  10. When adding a SPARC M10-4S on which SPARC64 X+ processors are mounted in a system in which only SPARC64 X processors are mounted, update the XCP firmware beforehand.
    For details, see "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" in the Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Domain Configuration Guide.
Remarks - The product model number of a chassis in which SPARC64 X+ processors are mounted begins with "SPMCG". Check the model indication on the label affixed on the upper right of the front cover or check the system nameplate on the right side surface of the chassis.
Table 8-2  Relationship between the CPU configuration and firmware update
CPU configuration of the physical partition before addition CPU configuration of the chassis to be added XCP firmware/Oracle Solaris
SPARC64 X SPARC64 X+ Update to versions supporting SPARC64 X+ is required beforehand. (*1)
SPARC64 X+ SPARC64 X+ Update is not required beforehand. (*2)
SPARC64 X+ and X mixed SPARC64 X+ Update is not required beforehand. (*2)
SPARC64 X+ SPARC64 X Update is not required beforehand. (*2)
*1 For XCP firmware versions and Oracle Solaris versions that support a system in which the SPARC64 X+ processor is mounted, see the Fujitsu M10/SPARC M10 Systems Product Notes for the latest XCP version.
*2 Executing the addfru command for addition automatically updates firmware to match firmware versions. The update matches the version on the master XSCF, so we recommend updating XCP on the master XSCF to the latest version in advance.
Notes on use of dynamic reconfiguration (DR) for the physical partition
Note - When using the dynamic reconfiguration function for the physical partition (PPAR DR), check the contents of "2.5 Dynamic Reconfiguration Conditions and Settings" in the Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Domain Configuration Guide beforehand.
  1. When incorporating a system board (PSB) into a physical partition with the addboard command
    The addboard command with the -c configure option specified cannot incorporate a system board (PSB) into a physical partition where the PPAR DR function is disabled. Execute the setpparmode command beforehand to set the PPAR DR setting to "on".
    For details, see "A.1 Updating a System That Does Not Support Physical Partition Dynamic Reconfiguration to One That Does Support It" in the Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Domain Configuration Guide.
Important - Be sure to save the logical domain configuration information before changing the PPAR DR mode setting.
When executing the setpparmode command to change the PPAR DR mode setting from "disable" to "enable" or vice versa, you must reset the physical partition to reflect the setting. This reset restores the logical domain configuration information to factory-default. Since the logical domain configuration information that has been saved beforehand is required for reconfiguration of the logical domain, be sure to save the logical domain configuration information before changing the PPAR DR mode setting. For details on how to save and restore logical domain configuration information, see "1.7.3 How to Save/Restore the Logical Domain Configuration Information and the OpenBoot PROM Environment Variable" in the PCI Expansion Unit for Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Service Manual.
  1. When adding a system board (PSB) on which the SPARC64 X processor is mounted in auto mode
    When the CPU operational mode is set to "auto" mode, an attempt to add a SPARC64 X-mounted system board (PSB) to a SPARC64 X+-mounted system by using dynamic reconfiguration (DR) fails because SPARC64 X+ functions are being used for operation.
    When adding the system board by using dynamic reconfiguration (DR), set the CPU operational mode to "compatible" mode beforehand.
    For the change procedure, see "2.6.2 CPU Operational Mode Settings" in the Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Domain Configuration Guide.
Important - Be sure to save the logical domain configuration information by list-constraints -x before changing the CPU operational mode.
The logical domain configuration information for Oracle VM Server for SPARC includes CPU operation information used by the logical domain.
If the configuration information of a logical domain operating by using SPARC64 X+ functions is applied to a physical partition operating by using SPARC64 X functions, inconsistency in the configuration information is detected. In this case, the XSCF switches the logical domain configuration information to factory-default, and then starts the physical partition.
Since the logical domain configuration information that has been saved beforehand is required for reconfiguration of the logical domain, be sure to save the logical domain configuration information before changing the CPU operational mode with the setpparmode command. For details on saving and restoring logical domain configuration information, see "1.7.3 How to Save/Restore the Logical Domain Configuration Information and the OpenBoot PROM Environment Variable" in the PCI Expansion Unit for Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 Service Manual.
  1. CPU configuration and CPU operational mode of the physical partition
    Table 8-3 shows the relationship between the physical partition configuration, setting value of the CPU operational mode, and CPU operation.
Table 8-3  Relationship between the physical partition configuration, setting value of the CPU operational mode, and CPU operation
Physical partition configuration Setting value of CPU operational mode CPU operation
SPARC64 X+ auto Operation by using SPARC64 X+ functions
SPARC64 X+ compatible Operation compatible with the SPARC64 X
SPARC64 X+ and X mixed auto or compatible As to the SPARC64 X+, operation compatible with the SPARC64 X
SPARC64 X auto or compatible Operation by using SPARC64 X functions
Note - When adding a SPARC64 X processor to a PPAR, you must shut down the PPAR before adding the PSB to the PPAR.