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2.5.3 How to Check/Set PPAR DR Mode


2.5.3 How to Check/Set PPAR DR Mode
This section describes how to check PPAR DR mode, and also how to set it.
Important - Before changing the PPAR DR mode setting, first save the logical domain configuration information.
Suppose that you change the PPAR DR mode setting from disabled to enabled, or enabled to disabled, using the setpparmode command. To apply the setting, you must reset the physical partition. This reset returns the logical domain configuration information to the factory-default settings. Reconfiguring the logical domain requires the logical domain configuration information that has been saved previously. So, always save the data before changing the PPAR DR mode setting. For details on how to save the logical domain configuration information and reconfigure the logical domain, see the configuration examples given in "A.1 Updating a System That Does Not Support Physical Partition Dynamic Reconfiguration to One That Does Support It."
The procedure for setting PPAR DR mode is as follows:
  1. Save the logical domain configuration information.
    In the following example, the logical domain configuration information is saved to an XML file called file.xml.
Note - This procedure is unnecessary if the logical domain has not yet been configured.
# ldm list-constraints -x > file.xml
  1. Execute the showpparmode command to check the PPAR DR mode setting.
    The display of PPAR DR (Current) indicates the current PPAR DR mode value. PPAR DR (Next) indicates the PPAR DR mode value set after the physical partition is next started.
    In the following example, the power to the physical partition is turned off and the PPAR DR function is disabled when the physical partition is next started.
XSCF> showpparmode -p PPAR_ID
Host-ID :9006000a
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :off
Autoboot(Guest Domain) :on
Elastic Mode :off
IOreconfigure :false
PPAR DR(Current) :-
PPAR DR(Next) :off
  1. Execute the setpparmode command to set PPAR DR mode.
    The following example enables the PPAR DR function.
XSCF> setpparmode -p PPAR_ID -m ppar_dr=on
Diagnostic Level :max -> -
Message Level :normal -> -
Alive Check :on -> -
Watchdog Reaction :reset -> -
Break Signal :on -> -
Autoboot(Guest Domain) :on -> -
Elastic Mode :off -> -
IOreconfigure :true -> -
PPAR DR :off -> on
The specified modes will be changed.
Continue? [y|n] :y
configured.
Diagnostic Level :max
Message Level :normal
Alive Check :on (alive check:available)
Watchdog Reaction :reset (watchdog reaction:reset)
Break Signal :on (break signal:non-send)
Autoboot(Guest Domain) :on
Elastic Mode :on
IOreconfigure :false
PPAR DR :on
  1. Execute the poweron command to power on the physical partitions.
XSCF> poweron -p PPAR_ID
Note - The logical domain configuration information returns to the factory-default settings. After restarting the physical partitions, reconfigure the logical domains by using the logical domain configuration information saved in step 1. For details on how to reconfigure the logical domains with the configuration information, see the configuration examples given in "A.1 Updating a System That Does Not Support Physical Partition Dynamic Reconfiguration to One That Does Support It."
  1. Execute the showpparmode command to check the current and next setting values.
    The following example shows that the PPAR DR function is currently enabled and that it will remain enabled when the physical partition is next started.
XSCF> showpparmode -p PPAR_ID
Host-ID :9006000a
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :off
Autoboot(Guest Domain) :on
Elastic Mode :off
IOreconfigure :false
PPAR DR(Current) :on
PPAR DR(Next) :on