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# Air cooled Witherspoon fan policy for PDM.
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#
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# An air cooled Witherspoon requires a minimum of three functional fans
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# enclosures or six functional fan rotors across all enclosures.
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# If the number of functional fan enclosures is below three, soft poweroff
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# the system, whereas if the number of fan rotors drop below six, an
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# immediate hard poweroff of the system occurs.
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- name: fan enclosures
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description: >
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'An air cooled Witherspoon has four fan enclosures to monitor.'
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class: group
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group: path
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members:
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan0
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan1
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan2
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan3
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- name: fan rotors
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description: >
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'An air cooled Witherspoon has eight fan rotors to monitor.'
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class: group
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group: path
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members:
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan0/fan0_0
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan0/fan0_1
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan1/fan1_0
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan1/fan1_1
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan2/fan2_0
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan2/fan2_1
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan3/fan3_0
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- meta: FAN
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path: /xyz/openbmc_project/inventory/system/chassis/motherboard/fan3/fan3_1
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- name: chassis state
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description: >
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'Witherspoon has a single chassis to monitor.'
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class: group
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group: path
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members:
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- meta: CHASSISSTATE
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path: /xyz/openbmc_project/state/chassis0
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- name: chassis
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description: >
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'Witherspoon has a single chassis to monitor.'
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class: group
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group: path
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members:
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- meta: CHASSIS
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path: /xyz/openbmc_project/inventory/system/chassis
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- name: fan present
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description: >
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'Monitor the presence state of each fan.'
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class: group
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group: property
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type: boolean
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members:
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- interface: xyz.openbmc_project.Inventory.Item
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meta: PRESENT
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property: Present
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- name: fan functional
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description: >
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'Monitor the functional state of each fan.'
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class: group
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group: property
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type: boolean
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members:
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- interface: xyz.openbmc_project.State.Decorator.OperationalStatus
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meta: FUNCTIONAL
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property: Functional
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- name: chassis powered
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description: >
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'Monitor the chassis power state.'
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class: group
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group: property
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type: string
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members:
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- interface: xyz.openbmc_project.State.Chassis
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meta: CHASSIS_STATE
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property: CurrentPowerState
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- name: chassis air cooled
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description: >
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'Monitor the chassis cooling type.'
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class: group
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group: property
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type: boolean
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members:
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- interface: xyz.openbmc_project.Inventory.Decorator.CoolingType
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meta: COOLING_TYPE
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property: WaterCooled
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- name: watch fan present
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description: >
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'Trigger logic on fan enclosure presence state changes.'
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class: watch
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watch: property
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paths: fan enclosures
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properties: fan present
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callback: check cooling type
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- name: watch fan functional
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description: >
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'Trigger logic on fan enclosure functional state changes.'
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class: watch
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watch: property
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paths: fan enclosures
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properties: fan functional
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callback: check cooling type
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- name: watch fan rotor functional
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description: >
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'Trigger logic on fan rotor functional state changes.'
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class: watch
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watch: property
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paths: fan rotors
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properties: fan functional
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callback: check cooling type
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- name: watch chassis state
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description: >
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'Trigger logic on chassis power state changes.'
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class: watch
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watch: property
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paths: chassis state
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properties: chassis powered
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callback: check cooling type
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- name: watch cooling type
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description: >
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'Maintain a cache of the chassis cooling type.'
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class: watch
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watch: property
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paths: chassis
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properties: chassis air cooled
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- name: check cooling type
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description: >
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'If this condition passes the chassis is air cooled.'
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class: condition
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condition: count
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paths: chassis
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properties: chassis air cooled
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callback: check power
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countop: '=='
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countbound: 0
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op: '=='
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bound: true
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- name: check power
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description: >
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'If the chassis has power, check fans.'
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class: condition
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condition: count
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paths: chassis state
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properties: chassis powered
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callback: check fans
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countop: '>'
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countbound: 0
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op: '=='
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bound: xyz.openbmc_project.State.Chassis.PowerState.On
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- name: check fans
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description: >
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'Verify there are at least three functional fan enclosures and at least
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six functional fan rotors, power off if not.'
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class: callback
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callback: group
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members:
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- check group presence
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- check group functional enclosures
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- check group functional rotors
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- name: check group presence
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description: >
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'If this condition passes more than one fan has been unplugged
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for more than 25 seconds. Shut the system down. Count present
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fans rather than non-present fans since the latter would pass
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if the fan has not been created for some reason.
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For a more detailed definition of unplugged, consult the documentation
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of xyz.openbmc_project.Inventory.Item and/or the documentation
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of the fan inventory object implementation.'
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class: condition
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condition: count
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paths: fan enclosures
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properties: fan present
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defer: 25000000us
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callback: log and shutdown
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countop: '<'
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countbound: 3
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op: '=='
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bound: true
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- name: check group functional enclosures
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description: >
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'If this condition passes more than one fan enclosure in the group has been
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marked as nonfunctional for five seconds. Shut the system down.
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For a more detailed definition of nonfunctional, consult the documentation
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of xyz.openbmc_project.State.Decorator.OperationalStatus and/or the
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documentation of the fan inventory object implementation.'
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class: condition
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condition: count
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paths: fan enclosures
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properties: fan functional
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defer: 5000000us
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callback: log and shutdown
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countop: '>'
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countbound: 1
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op: '=='
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bound: false
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- name: check group functional rotors
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description: >
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'If this condition passes more than two fan rotors in the group have been
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marked as nonfunctional for five seconds. Immediately power off.
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For a more detailed definition of nonfunctional, consult the documentation
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of xyz.openbmc_project.State.Decorator.OperationalStatus and/or the
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documentation of the fan inventory object implementation.'
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class: condition
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condition: count
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paths: fan rotors
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properties: fan functional
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defer: 5000000us
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callback: log and poweroff
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countop: '>'
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countbound: 2
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op: '=='
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bound: false
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- name: log and poweroff
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description: >
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'Immediately poweroff, log an event in the journal, and create an
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error log.'
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class: callback
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callback: group
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members:
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- hard poweroff
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- log hard poweroff
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- create shutdown error
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- name: log and shutdown
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description: >
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'Shut the system down, log an event in the journal, and create an
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error log.'
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class: callback
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callback: group
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members:
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- shutdown
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- log shutdown
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- create shutdown error
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- name: hard poweroff
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description: >
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'Immediately power off the system.'
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class: callback
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callback: method
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service: org.freedesktop.systemd1
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path: /org/freedesktop/systemd1
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interface: org.freedesktop.systemd1.Manager
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method: StartUnit
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args:
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- value: obmc-chassis-hard-poweroff@0.target
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type: string
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- value: replace
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type: string
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- name: shutdown
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description: >
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'Shut down the system.'
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class: callback
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callback: method
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service: org.freedesktop.systemd1
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path: /org/freedesktop/systemd1
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interface: org.freedesktop.systemd1.Manager
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method: StartUnit
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args:
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- value: obmc-host-shutdown@0.target
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type: string
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- value: replace
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type: string
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- name: log hard poweroff
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description: >
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'Log a hard poweroff event to the systemd journal.'
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class: callback
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callback: journal
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paths: chassis state
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properties: chassis powered
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severity: ERR
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message: Immediate poweroff of system. There are not enough functional fans.
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- name: log shutdown
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description: >
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'Log a shutdown event to the systemd journal.'
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class: callback
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callback: journal
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paths: chassis state
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properties: chassis powered
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severity: ERR
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message: Request shutdown of system. There are not enough functional fans.
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- name: create shutdown error
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description: >
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'Create a Fan Shutdown Error log.'
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class: callback
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callback: elog
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paths: chassis state
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properties: chassis powered
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error: xyz::openbmc_project::State::Shutdown::Inventory::Error::Fan
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