Reference Guide

Property Description
• 7 = Fan
• 8 = Sensor
• 9 = Module/Card
• 10 = Port/Connector
• 11 = Battery
• 12 = Processor
• 13 = Memory
• 14 = Power Source/Generator
• 15 = Storage Media Package (example, Disk or
Tape Drive)
• 16 = Blade
• 17 = Blade Expansion
NOTE: This enumeration expands on the list
in the Entity MIB (the attribute,
entPhysicalClass). The numeric values are
consistent with CIM's enum numbering
guidelines, but are slightly different than the
MIB's values. The values
Rack through Port/
Connector are defined per the Entity-MIB
(where the semantics of rack are equivalent to
the MIB's stack value). The other values (for
battery, processor, memory, power source/
generator and storage media package) are
self-explanatory.
A value of Blade should be used when the
PhysicalPackage contains the operational
hardware aspects of a ComputerSystem, without
the supporting mechanicals such as power and
cooling. For example, a Blade Server includes
processor(s) and memory, and relies on the
containing chassis to supply power and cooling. In
many respects, a Blade can be considered a
Module/Card. However, it is tracked differently by
inventory systems and differs in terms of service
philosophy. For example, a Blade is intended to be
hot-plugged into a hosting enclosure without
requiring additional cabling, and does not require a
cover to be removed from the enclosure for
installation. Similarly, a Blade Expansion has
characteristics of a Blade and a Module/Card.
However, it is distinct from both due to inventory
tracking and service philosophy, and because of its
hardware dependence on a Blade. A Blade
Expansion must be attached to a Blade prior to
inserting the resultant assembly into an enclosure.
PartNumber
The part number assigned by the organization that
is responsible for producing or manufacturing the
PhysicalElement.
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