|Skip Navigation Links|
|Exit Print View|
| Oracle Integrated Lights Out Manager (ILOM) 3.0
Supplement for Sun Server X2-4
This release of Oracle ILOM 3.0 software provides new Power Management policies that are supported on the Sun Server X2-4.
For more information about the latest Oracle ILOM 3.0 Power Management policies, see the Oracle Integrated Lights Out Manager (ILOM 3.0) Feature Updates and Release Notes.
This section includes the following topics:
The Sun Server X2-4 supports a simple mechanism to automatically apply hardware throttles to the CPUs and memory controllers when power exceeds the rated capacity of the available power supplies. This can occur when a redundant power supply has failed or has been removed from the system.
When the server's hardware (power CPLD) determines that power demand has exceeded the system's available power, it automatically throttles the host processor to reduce its power consumption. The service processor (SP) removes this hardware throttle after it has been applied for 5 seconds. Host power throttling and recovery continues until such action is no longer needed.
Service processor power-on policies are mutually exclusive, meaning that if one policy is enabled, the other policy is disabled by default. If both policies are disabled, then the server SP will not apply main power to the server at boot time. A brief description of the SP power-on policies and default settings follows:
Auto Power-On Host On Boot – When this option is enabled, the SP automatically applies main power to the server. When disabled (default), main power is not applied to the server.
Set Host Power to Last Power State On Boot – When this option is enabled, the SP automatically applies main power to the server based on the last power state of the server. The SP automatically tracks the last power state and restores the server to its last remembered power state following a power state change of at least 10 seconds. When disabled (default), the last power state is not applied to the server.
You can configure SP power-on policies using the Oracle ILOM web interface or the Oracle ILOM command-line interface (CLI). For instructions, see the following sections:
The Low Line AC Override policy setting is provided to enable special test scenarios of a 4-CPU system using low-line (110 volt) power. Low-line voltage is normally supported only in 2-CPU system configurations. The capacity of each power supply unit (PSU) is roughly 1000 watts at low line. Since the power of a 4-CPU system can exceed 1000 watts by a large amount, enabling this setting results in a loss of PSU redundancy. This setting is disabled by default on the Sun Server X2-4.
Note - The server is rated to have a maximum AC input current of 12 amps (with one or both PSUs working). When the Low Line AC Override policy is enabled, a 4‐CPU system can require more than 12 amps total current for both PSUs. In any case, each AC inlet will not exceed 12 amps.
You can configure the Low Line AC Override policy setting using the Oracle ILOM web interface or the Oracle ILOM command-line interface (CLI). For instructions, see the following sections:
The Policy Configuration page is displayed.
The SP policy options include:
-> show /SP/policy
The SP policy properties are displayed. For example:
/SP/policy Targets: Properties: HOST_AUTO_POWER_ON = disabled HOST_LAST_POWER_STATE = disabled LOW_LINE_AC_OVERRIDE_MODE = disabled Commands: cd set show ->
In the above output, Host Auto Power On is disabled, Host Last Power State is disabled, and Low Line AC Override Mode is disabled.
-> set /SP/policy/ HOST_AUTO_POWER_ON=[enabled|disabled]
-> set /SP/policy/ HOST_LAST_POWER_STATE=[enabled|disabled]
-> set /SP/policy/ LOW_LINE_AC_OVERRIDE_MODE=[enabled|disabled]