Reference Guide

Property Description
business entity and should not be reused to identify different
underlying (real-world) elements. If the above "preferred" algorithm
is not used, the defining entity must assure that the resulting
InstanceID is not reused across any InstanceIDs produced by this
or other providers for the NameSpace of this instance. For DMTF-
defined instances, the "preferred" algorithm must be used with the
<OrgID> set to CIM.
MetricDefinitionId
The key of the BaseMetricDefinition instance for this
CIM_BaseMetricValue instance value.
MetricValue
The value of the metric represented as a string. Its original data
type is specified in CIM_BaseMetricDefinition.
TimeStamp
Identifies the time when the value of a metric instance is
computed. Note that this is different from the time when the
instance is created. For a given CIM_BaseMetricValue instance,
the TimeStamp changes whenever a new measurement snapshot
is taken if Volatile is true. A managmenet application may establish
a time series of metric data by retrieving the instances of
CIM_BaseMetricValue and sorting them according to their
TimeStamp.
Volatile
If true, Volatile indicates that the value for the next point in time
may use the same object and just change its properties (such as
the value or timestamp). If false, the existing objects remain
unchanged and a new object is created for the new point in time.
DCIM_LogEntry
Property Description
CreationTimeStamp
A LogEntry may include a timestamp for the entry.
ElementName
A user-friendly name for the object. This property allows each instance to
define a user-friendly name in addition to its key properties, identity data, and
description information.
NOTE: The Name property of ManagedSystemElement is also defined as a
user-friendly name. But, it is often subclassed to be a Key. It is not
reasonable that the same property can convey both identity and a user-
friendly name, without inconsistencies. Where Name exists and is not a
Key (such as for instances of LogicalDevice), the same information can be
present in both the Name and ElementName properties.
InstanceID
Within the scope of the instantiating Namespace, InstanceID opaquely and
uniquely identifies an instance of this class. To ensure uniqueness within the
NameSpace, the value of InstanceID should be constructed using the following
"preferred" algorithm:
<OrgID> : <LocalID>
Where <OrgID> and <LocalID> are separated by a colon (:), and where <OrgID>
must include a copyrighted, trademarked, or otherwise unique name that is
owned by the business entity that is creating or defining the InstanceID or that
is a registered ID assigned to the business entity by a recognized global
authority. (This requirement is similar to the <Schema Name>_<Class Name>
structure of Schema class names.) In addition, to ensure uniqueness, <OrgID>
must not contain a colon (:). When using this algorithm, the first colon to appear
in InstanceID must appear between <OrgID> and <LocalID> . <LocalID> is
chosen by the business entity and should not be reused to identify different
228