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Power monitor and control unit (pmcu) crus, Primary, Processor – HP Integrity NonStop J-Series User Manual

Page 313: Port, Processor's, Physical view, Problem incident report

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physical interface
(PIF)

The hardware components that connect a system node to a network.

physical location

A three-part identifier that specifies the group number, module number, and slot number of a
resource. For example: GRP-2.MOD-1.SLOT-8.

Physical view

One of several views available in the view pane of the

Management window

. The Physical view

of a server is a view of all the

enclosures

and is intended to represent the actual floor plan at the

site. A Physical view of an enclosure is a visual representation of the physical location of supported

resources

inside the enclosure. A Physical view of an Expand network is a visual representation

of the connections and resources within a network such as a

ServerNet cluster

.

See also

Inventory view

.

plug-in card

A replaceable component that provides a unique function when installed in a CRU or FRU. For
example, plug-in cards for IOMF2 CRUs provide a choice of connection media for attaching
ServerNet cables.

port

A physical connector to which a cable can be attached. The system transmits and receives data
or requests through ports. A port is also called a connector.

port name

A 64-bit unique identifier assigned to each Fibre Channel port. The port_name is communicated
during the login and port discovery processes.
See also world wide name.

power domain

A set of

customer-replaceable units (CRUs)

and

field-replaceable units (FRUs)

that share a set of

power rails.

power interface
board (PIB)

A board mounted on the bulkhead located behind the power supplies in NonStop S7x000 and
S7400 processor

enclosures

. The PIB provides electrical connection between the power supplies

and DC power cables.

power monitor and
control unit (PMCU)
FRU

A

FRU (field-replaceable unit)

that connects the batteries to the DC power distribution bus in an

enclosure

and provides a means of disconnecting the batteries for powering off the system. The

PMCU also enables the service processor to diagnose the condition of the associated fan and
power supply and to regulate the voltage supplied to the fans. It also provides the interface to
the

group

identification switches and service

LEDs

. There are two PMCUs in each group, one for

each of the two DC power distribution buses.

power supply

In system enclosures without power shelves, the component that converts standard AC line voltage
into the DC voltages needed by the group components in the enclosure.

In system enclosures with power shelves, the component located in the power shelf that converts
standard AC line voltage into DC voltage and delivers it to the CRUs in that enclosure, which in
turn supply the DC voltages needed by the group components in the enclosure.

primary processor

The processor that is designated as owning the

ServerNet addressable controller (SAC)

connected

to separate processors running the NonStop operating system. The primary processor is the
processor that has direct control over the SAC.
See also

backup processor

.

primitive state

The state of a PE that is not a member of the voting set of PEs. In this state the PE cannot perform
any I/O, voting or rendezvous. It may communication with other PEs using primitive communication
mechanisms.

problem incident
report

A type of

incident report

that notifies you of a problem on your server or ServerNet cluster. A

problem incident report is generated when changes occur that could directly affect the availability
of resources. Problem incident reports include the system configuration file and might include
other attachments, such as alarm logs and processor diagnostic information.
See also

periodic incident report

.

processor

A functional unit of a computer that reads program instructions, moves data between processor
memory and the input/output controllers, and performs arithmetic operations. Processors are
sometimes referred to as central processing units (CPUs), but a NonStop server has multiple
cooperating processors rather than a single CPU.

processor board

A board that contains the set of processor elements in a Blade Element.

processor complex

The set of one, two, or three Blade Elements and their associated LSUs.

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