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Oracle® ILOM User's Guide for System Monitoring and Diagnostics Firmware Release 3.2.x

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Updated: April 2018
 
 

Power Allocated Components and Monitoring Considerations

Table 12   Server SP Power Allocated Components
Server
Component
Allocated
Power
Applicable to Oracle x86 and SPARC Servers
Applicable to Oracle Blade Servers
All server power consuming components
  • X

  • X

  • X

CPUs
  • X

  • X

  • X

Memory Modules, such as DIMMs
  • X

  • X

  • X

I/O Modules such as such as HDDs,PEMs

These server related I/O modules (PEMs REMs and RFEMs) apply only to an Oracle blade chassis configuration.

REMs*, RFEMs*
  • X

  • X

  • X

Motherboard (MB)
  • X

  • X

  • X

Power Supply Units (PSUs)
  • X

  • X

  • Does not apply

    When these devices (PSUs and FM) are installed in an Oracle blade chassis they are allocated power by the CIMM.

Fans (FM)
  • X

  • X

  • Does not apply+

Table 13  CMM Power Allocated Components
CMM
Component
Granted Power (Watts)
Grant Limit (Watts)
Grantable Power (Watts)
All CMM power-consuming components (aggregate value for all powered entities listed)
  • X

  • X

  • X

Blade slots (BL#)
  • X

  • X

    The Grant Limit allocated to blade slots is user configurable.

  • Does not apply

CMM
  • X

  • Does not apply

  • Does not apply

Network Express Modules(NEMs)
  • X

  • Does not apply

  • Does not apply

Power Supply Units (PSUs)
  • Does not apply

  • Does not apply

Fans (FM)
  • Does not apply

  • Does not apply

Table 14  Power Allocations Monitoring Considerations
Power Allocated Components
Oracle ILOM Power Allocation Behavior
Oracle rackmounted servers
Power allocated to an Oracle rackmounted server is the maximum power the rackmount chassis components are capable of consuming. This value represents the maximum power wattage consumed by the processors, memory, I/O, fans, as well as the power loss across the power supplies. If the rackmount chassis contains slots for hot-pluggable components, the Power Allocated property value shown represents the maximum power wattage required for the most power-consuming component that can be installed in the hot-pluggable slot.
Oracle blade servers
Power to an Oracle blade server is allocated by the CMM when a request for power is made by the blade server. The blade server requests power whenever it is powered on, and releases power to the CMM whenever it is powered off. The CMM allocates power to the blade server if the grantable power is sufficient to meet the blade server's request. In addition, the CMM will verify whether a Grant Limit is set for the corresponding blade slot. If a Grant Limit is set for the corresponding blade slot, the CMM will allocate power to the blade server only when the power wattage request is less than or equal to the Grant Limit property set for the blade slot.
Oracle auto-powered I/O blades
Since the Oracle I/O blade servers are not managed by an SP, the I/O blade server will not seek permission to power-on from the CMM. When an I/O blade server is installed in an Oracle blade chassis, the I/O blade server will automatically power on.
Hot-pluggable chassis components
Oracle ILOM automatically displays a pre-allocated maximum power value for any known hot-pluggable component that is installed in a hot-plug designated chassis slot location.For example:
  • For rackmount hot-pluggable slots, Oracle ILOM displays the known maximum power wattage value required for a hot-pluggable component.

  • For blade hot-pluggable slots, Oracle ILOM displays the maximum power value required for any Oracle I/O blade server that could be installed in the blade chassis slot. However, if the blade chassis does not support I/O blade servers, Oracle ILOM displays the maximum power wattage value required for a CPU blade server.

To determine which components or slots in a rackmounted chassis or blade chassis are hot-pluggable, refer to the Oracle server or CMM hardware documentation.
Chassis component categories
For chassis component categories that include multiple instances of the same component, Oracle ILOM presents the total sum of power allocated for a component category (fans), as well as the total sum of power allocated to an individual component (fan0).
Power supply unit (PSU)
Oracle ILOM automatically allocates power to the power supply to account for power losses between the wall outlet and the managed device.