NAME

renergy - remote energy management tool


SYNOPSIS

renergy [-h | --help]

renergy [-v | --version]

Power 6 server specific :

renergy noderange [-V] { all | [savingstatus] [cappingstatus] [cappingmaxmin] [cappingvalue] [cappingsoftmin] [averageAC] [averageDC] [ambienttemp] [exhausttemp] [CPUspeed] [syssbpower] [sysIPLtime]}

renergy noderange [-V] { savingstatus={on | off} | cappingstatus={on | off} | cappingwatt=watt | cappingperc=percentage }

Power 7 server specific :

renergy noderange [-V] { all | [savingstatus] [dsavingstatus] [cappingstatus] [cappingmaxmin] [cappingvalue] [cappingsoftmin] [averageAC] [averageDC] [ambienttemp] [exhausttemp] [CPUspeed] [syssbpower] [sysIPLtime] [fsavingstatus] [ffoMin] [ffoVmin] [ffoTurbo] [ffoNorm] [ffovalue]}

renergy noderange [-V] { savingstatus={on | off} | dsavingstatus={on-norm | on-maxp | off} | fsavingstatus={on | off} | ffovalue=MHZ | cappingstatus={on | off} | cappingwatt=watt | cappingperc=percentage }

BladeCenter specific :

For Management Modules:

renergy noderange [-V] { all | pd1all | pd2all | [pd1status] [pd2status] [pd1policy] [pd2policy] [pd1powermodule1] [pd1powermodule2] [pd2powermodule1] [pd2powermodule2] [pd1avaiablepower] [pd2avaiablepower] [pd1reservedpower] [pd2reservedpower] [pd1remainpower] [pd2remainpower] [pd1inusedpower] [pd2inusedpower] [availableDC] [averageAC] [thermaloutput] [ambienttemp] [mmtemp] }

For a blade server nodes:

renergy noderange [-V] { all | [averageDC] [capability] [cappingvalue] [CPUspeed] [maxCPUspeed] [savingstatus] [dsavingstatus] }

renergy noderange [-V] { savingstatus={on | off} | dsavingstatus={on-norm | on-maxp | off} }

Flex specific :

For Flex Management Modules:

renergy noderange [-V] { all | [powerstatus] [powerpolicy] [powermodule] [avaiablepower] [reservedpower] [remainpower] [inusedpower] [availableDC] [averageAC] [thermaloutput] [ambienttemp] [mmtemp] }

For Flex node (power and x86):

renergy noderange [-V] { all | [averageDC] [capability] [cappingvalue] [cappingmaxmin] [cappingmax] [cappingmin] [cappingGmin] [CPUspeed] [maxCPUspeed] [savingstatus] [dsavingstatus] }

renergy noderange [-V] { cappingstatus={on | off} | cappingwatt=watt | cappingperc=percentage | savingstatus={on | off} | dsavingstatus={on-norm | on-maxp | off} }

iDataPlex specific :

renergy noderange [-V] [ { cappingmaxmin | cappingmax | cappingmin } ] [cappingstatus] [cappingvalue] [relhistogram]

renergy noderange [-V] { cappingstatus={on | enable | off | disable} | {cappingwatt|cappingvalue}=watt }


DESCRIPTION

This renergy command can be used to manage the energy consumption of IBM servers which support IBM EnergyScale technology. Through this command, user can query and set the power saving and power capping status, and also can query the average consumed energy, the ambient and exhaust temperature, the processor frequency for a server.

renergy command supports IBM POWER6 and POWER7 rack-mounted servers, BladeCenter management modules, blade servers, and iDataPlex servers. For system p rack-mounted servers, the following specific hardware types are supported: 8203-E4A, 8204-E8A, 9125-F2A, 8233-E8B, 8236-E8C.

The parameter noderange needs to be specified for the renergy command to get the target servers. The noderange should be a list of CEC node names, blade management module node names or blade server node names. Lpar name is not acceptable here.

renergy command can accept multiple of energy attributes to query or one of energy attribute to set. If only the attribute name is specified, without the '=', renergy gets and displays the current value. Otherwise, if specifying the attribute with '=' like 'savingstatus=on', renergy will set the attribute savingstatus to value 'on'.

The attributes listed in the SYNOPSIS section are which ones can be handled by renergy command. But for each specific type of server, there are some attributes that are not supported. If user specifies an attribute which is not supported by a specific server, the return value of this attribute will be 'na'.

The supported attributes for each specific system p hardware type is listed as follows:

8203-E4A, 8204-E8A

Supported attributes:

Query: savingstatus,cappingstatus,cappingmin,cappingmax, cappingvalue,cappingsoftmin,averageAC,averageDC,ambienttemp, exhausttemp,CPUspeed,syssbpower,sysIPLtime

Set: savingstatus,cappingstatus,cappingwatt,cappingperc

9125-F2A

Supported attributes:

Query: savingstatus,averageAC,ambienttemp,exhausttemp, CPUspeed

Set: savingstatus

8233-E8B, 8236-E8C

Supported attributes:

Query: savingstatus,dsavingstatus,cappingstatus,cappingmin, cappingmax,cappingvalue,cappingsoftmin,averageAC,averageDC, ambienttemp,exhausttemp,CPUspeed,syssbpower,sysIPLtime

Set: savingstatus,dsavingstatus,cappingstatus,cappingwatt, cappingperc

9125-F2C, 9119-FHB

Supported attributes:

Query: savingstatus,dsavingstatus,cappingstatus,cappingmin, cappingmax,cappingvalue,cappingsoftmin,averageAC,averageDC, ambienttemp,exhausttemp,CPUspeed,syssbpower,sysIPLtime, fsavingstatus,ffoMin,ffoVmin,ffoTurbo,ffoNorm,ffovalue

Set: savingstatus,dsavingstatus,cappingstatus,cappingwatt, cappingperc,fsavingstatus,ffovalue

Non of Above

For the machine type which is not in the above list, the following attributes can be tried but not guaranteed:

Query: savingstatus,dsavingstatus,cappingstatus,cappingmin, cappingmax,,cappingvalue,cappingsoftmin,averageAC,averageDC, ambienttemp,exhausttemp,CPUspeed,syssbpower,sysIPLtime

Set: savingstatus,dsavingstatus,cappingstatus,cappingwatt, cappingperc

Note: For system P CEC nodes, each query operation for attribute CPUspeed, averageAC or averageDC needs about 30 seconds to complete. The query for others attributes will get response immediately.


PREREQUISITES

For the system p nodes, the renergy command depends on the Energy Management Plugin xCAT-pEnergy to communicate with server. xCAT-pEnergy can be downloaded from the IBM web site: http://www.ibm.com/support/fixcentral/. (Other Software -> EM)

For iDataPlex nodes, the renergy command depends on the Energy Management Plugin xCAT-xEnergy to communicate with server. This plugin must be requested from IBM.

(The support for BladeCenter energy management is built into base xCAT, so no additional plugins are needed for BladeCenter.)


OPTIONS

-h | --help

Display the usage message.

-v | --version

Display the version information.

-V

Verbose output.

all

Query all energy attributes which supported by the specific type of hardware.

pd1all

Query all energy attributes of the power domain 1 for blade management module node.

pd2all

Query all energy attributes of the power domain 2 for blade management module node.

ambienttemp

Query the current ambient temperature. (Unit is centigrade)

availableDC

Query the total DC power available for the entire blade center chassis.

averageAC

Query the average power consumed (Input). (Unit is watt)

Note: For 9125-F2A,9125-F2C server, the value of attribute averageAC is the aggregate for all of the servers in a rack.

Note: For Blade Center, the value of attribute averageAC is the total AC power being consumed by all modules in the chassis. It also includes power consumed by the Chassis Cooling Devices for BCH chassis.

averageDC

Query the average power consumed (Output). (Unit is watt)

capability

Query the Power Capabilities of the blade server.

staticPowerManagement: the module with the static worst case power values.

fixedPowermanagement: the module with the static power values but ability to throttle.

dynamicPowerManagement: the module with power meter capability, measurement enabled, but capping disabled.

dynamicPowerMeasurement1: the module with power meter capability, measurement enabled, phase 1 only

dynamicPowerMeasurement2: the module with power meter capability, measurement enabled, phase 2 or higher

dynamicPowerMeasurementWithPowerCapping: the module with power meter capability, both measurement and capping enabled, phase 2 or higher

cappingGmin

Query the Guaranteed Minimum power capping value in watts.

cappingmax

Query the Maximum of power capping value in watts.

cappingmaxmin

Query the Maximum and Minimum of power capping value in watts.

cappingmin

Query the Minimum of power capping value in watts.

cappingperc=percentage

Set the power capping value base on the percentage of the max-min of capping value which getting from cappingmaxmim attribute. The valid value must be from 0 to 100.

cappingsoftmin

Query the minimum value that can be assigned to power capping without guaranteed enforceability. (Unit is watt)

cappingstatus

Query the power capping status. The result should be 'on' or 'off'.

cappingstatus={on | off}

Set the power capping status. The value must be 'on' or 'off'. This is the switch to turn on or turn off the power capping function.

cappingvalue

Query the current power capping value. (Unit is watt)

cappingwatt=watt

Set the power capping value base on the watt unit.

If the 'watt' > maximum of cappingmaxmin or 'watt' < cappingsoftmin, the setting operation will be failed. If the 'watt' > cappingsoftmin and 'watt' < minimum of cappingmaxmin, the value can NOT be guaranteed.

CPUspeed

Query the effective processor frequency. (Unit is MHz)

dsavingstatus

Query the dynamic power saving status. The result should be 'on-norm', 'on-maxp' or 'off'.

If turning on the dynamic power saving, the processor frequency and voltage will be dropped dynamically based on the core utilization. It supports two modes for turn on state:

on-norm - means normal, the processor frequency cannot exceed the nominal value;

on-maxp - means maximum performance, the processor frequency can exceed the nominal value.

dsavingstatus={on-norm | on-maxp | off}

Set the dynamic power saving. The value must be 'on-norm', 'on-maxp' or 'off'.

The dsavingstatus setting operation needs about 2 minutes to take effect. (The used time depends on the hardware type)

The dsavingstatus only can be turned on when the savingstatus is in turn off status.

exhausttemp

Query the current exhaust temperature. (Unit is centigrade)

ffoMin

Query the minimum cpu frequency which can be set for FFO. (Fixed Frequency Override)

ffoNorm

Query the maximum cpu frequency which can be set for FFO.

ffoTurbo

Query the advertised maximum cpu frequency (selling point).

ffoVmin

Query the minimum cpu frequency which can be set for dropping down the voltage to save power. That means when you drop the cpu frequency from the ffoVmin to ffoVmin, the voltage won't change, then there's no obvious power to be saved.

ffovalue

Query the current value of FFO.

ffovalue=MHZ

Set the current value of FFO. The valid value of ffovalue should be between the ffoMin and ffoNorm.

Note1: Due to the limitation of firmware, the frequency in the range 3501 MHz - 3807 MHz can NOT be set to ffovalue. This range may be changed in future.

Note2: The setting will take effect only when the fsavingstatus is in 'on' status. But you need to set the ffovalue to a valid value before enabling the fsavingstatus. (It's a limitation of the initial firmware and will be fixed in future.)

The ffovalue setting operation needs about 1 minute to take effect.

fsavingstatus

Query the status of FFO. The result should be 'on' or 'off'. 'on' - enable; 'off' - disable.

fsavingstatus={onoff}

Set the status of FFO. The value must be 'on' or 'off'.

'on' - enable. It will take effect only when the ffovalue has been set to a valid value.

'off' -disable. It will take effect immediately.

Note: See the Note2 of ffovalue=MHZ.

maxCPUspeed

Query the maximum processor frequency. (Unit is MHz)

mmtemp

Query the current temperature of management module. (Unit is centigrade)

pd1status | powerstatus

Query the status of power domain 1 for blade management module node.

Note: for the attribute without the leading 'pd1' which means there's only one power doamin in the chassis.

pd1policy | powerpolicy

Query the power management policy of power domain 1.

pd1powermodule1 | powermodule

Query the First Power Module capacity in power domain 1.

pd1powermodule2 | powermodule

Query the Second Power Module capacity in power domain 1.

pd1avaiablepower | avaiablepower

Query the total available power in power domain 1.

pd1reservedpower | reservedpower

Query the power that has been reserved for power domain 1.

pd1remainpower | remainpower

Query the remaining power available in power domain 1.

pd1inusedpower | inusedpower

Query the total power being used in power domain 1.

pd2status

Query the status of power domain 2 for blade management module node.

pd2policy

Query the power management policy of power domain 2.

pd2powermodule1

Query the First Power Module capacity in power domain 2.

pd2powermodule2

Query the Second Power Module capacity in power domain 2.

pd2avaiablepower

Query the total available power in power domain 2.

pd2reservedpower

Query the power that has been reserved for power domain 2.

pd2remainpower

Query the remaining power available in power domain 2.

pd2inusedpower

Query the total power being used in power domain 2.

relhistogram

Query histogram data for wattage information

savingstatus

Query the static power saving status. The result should be 'on' or 'off'. 'on' - enable; 'off' - disable.

savingstatus={on | off}

Set the static power saving. The value must be 'on' or 'off'.

If turning on the static power saving, the processor frequency and voltage will be dropped to a fixed value to save energy.

The savingstatus setting operation needs about 2 minutes to take effect. (The used time depends on the hardware type)

The savingstatus only can be turned on when the dsavingstatus is in turn off status.

sysIPLtime

Query the time used from FSP standby to OS standby. (Unit is Second)

syssbpower

Query the system power consumed prior to power on. (Unit is MHz)

thermaloutput

Query the thermal output (load) in BTUs per hour for the blade center chassis.


RETURN VALUE

0 The command completed successfully.

1 An error has occurred.


EXAMPLES

  1. Query all the attributes which CEC1,CEC2 supported.

    renergy CEC1,CEC2 all

    The output of the query operation:

        CEC1: savingstatus: off
        CEC1: dsavingstatus: off
        CEC1: cappingstatus: off
        CEC1: cappingmin: 1953 W
        CEC1: cappingmax: 2358 W
        CEC1: cappingvalue: 2000 W
        CEC1: cappingsoftmin: 304 W
        CEC1: averageAC: na
        CEC1: averageDC: na
        CEC1: ambienttemp: na
        CEC1: exhausttemp: na
        CEC1: CPUspeed: na
        CEC1: syssbpower: 40 W
        CEC1: sysIPLtime: 900 S
        CEC2: savingstatus: off
        CEC2: cappingstatus: off
        CEC2: cappingmin: 955 W
        CEC2: cappingmax: 1093 W
        CEC2: cappingvalue: 1000 W
        CEC2: cappingsoftmin: 226 W
        CEC2: averageAC: 627 W
        CEC2: averageDC: 531 W
        CEC2: ambienttemp: 25 C
        CEC2: exhausttemp: 40 C
        CEC2: CPUspeed: 4695 MHz
  2. Query all the attirbutes for management module node MM1. (For chassis)

    renergy MM1 all

    The output of the query operation:

        mm1: availableDC: 5880W
        mm1: frontpaneltmp: 18.00 Centigrade
        mm1: inusedAC: 2848W
        mm1: mmtmp: 28.00 Centigrade
        mm1: pd1avaiablepower: 2940W
        mm1: pd1inusedpower: 848W
        mm1: pd1policy: redundantWithoutPerformanceImpact
        mm1: pd1powermodule1: Bay 1: 2940W
        mm1: pd1powermodule2: Bay 2: 2940W
        mm1: pd1remainpower: 1269W
        mm1: pd1reservedpower: 1671W
        mm1: pd1status: 1 - Power domain status is good.
        mm1: pd2avaiablepower: 2940W
        mm1: pd2inusedpower: 1490W
        mm1: pd2policy: redundantWithoutPerformanceImpact
        mm1: pd2powermodule1: Bay 3: 2940W
        mm1: pd2powermodule2: Bay 4: 2940W
        mm1: pd2remainpower: 51W
        mm1: pd2reservedpower: 2889W
        mm1: pd2status: 2 - Warning: Power redundancy does not exist 
    in this power domain.
        mm1: thermaloutput: 9717.376000 BTU/hour
  3. Query all the attirbutes for blade server node blade1.

    renergy blade1 all

    The output of the query operation:

        blade1: CPUspeed: 4204MHZ
        blade1: averageDC: 227W
        blade1: capability: dynamicPowerMeasurement2
        blade1: cappingvalue: 315W
        blade1: dsavingstatus: off
        blade1: maxCPUspeed: 4204MHZ
        blade1: savingstatus: off
  4. Query the attributes savingstatus, cappingstatus and CPUspeed for server CEC1.

    renergy CEC1 savingstatus cappingstatus CPUspeed

    The output of the query operation:

        CEC1: savingstatus: off
        CEC1: cappingstatus: on
        CEC1: CPUspeed: 3621 MHz
  5. Turn on the power saving function of CEC1.

    renergy CEC1 savingstatus=on

    The output of the setting operation:

        CEC1: Set savingstatus succeeded.         
        CEC1: This setting may need some minutes to take effect.
  6. Set the power capping value base on the percentage of the max-min capping value. Here, set it to 50%.

    renergy CEC1 cappingperc=50

    If the maximum capping value of the CEC1 is 850w, and the minimum capping value of the CEC1 is 782w, the Power Capping value will be set as ((850-782)*50% + 782) = 816w.

    The output of the setting operation:

        CEC1: Set cappingperc succeeded.
        CEC1: cappingvalue: 816


REFERENCES

  1. For more information on 'Power System Energy Management':

        http://www-03.ibm.com/systems/power/software/energy/index.html
  2. EnergyScale white paper for Power6:

        http://www-03.ibm.com/systems/power/hardware/whitepapers/energyscale.html
  3. EnergyScale white paper for Power7:

        http://www-03.ibm.com/systems/power/hardware/whitepapers/energyscale7.html


FILES

/opt/xcat/bin/renergy