Reference Guide

Table 88. RedundancySet (continued)
Property Description
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 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.
MinNumberNeeded
MinNumberNeeded indicates the smallest number of elements that MUST be
operational in order to function. For example, in an N+1 redundancy relationship, the
MinNumberNeeded property is set equal to N. In a 'LimitedSparing' environment, this
property is meaningless and SHOULD be set to zero.
RedundancyStatus
RedundancyStatus provides information on the state of the RedundancyGroup.
Possible values are:
● 0 = Unknown
● 1 = DMTF Reserved
● 2 = Fully Redundant—Indicates that all of the configured redundancy is still
available
● 3 = Degraded Redundancy—Indicates that some configured elements are
degraded, missing or failed but that the number of elements in the set is still
greater than the minimum required (MinNumberNeeded);
● 4 = Redundancy Lost—Indicates that sufficient configured elements are missing
or failed that no redundancy is available and the next failure experienced will
cause overall failure.
● 5 = Overall Failure—Indicates that there has been an overall failure of the
RedundancySet.
TypeOfSet
TypeOfSet provides information on the type of redundancy. - N+1 (=2) indicates all
members are active, are unaware and function independent of one another.
However, there exist at least one extra member to achieve functionality. Sparing is
implied (i.e. each member can be a spare for the other(s). An example of N+1 is a
system that has 2 power supplies, but needs only 1 power supply to functioning
properly.
Possible values are:
● 0 = Unknown
● 1 = Other
● 2 = N+1
● 3 = Load Balanced—Indicates all members are active. However, there
functionality is not independent of each other. Their functioning is determined by
some sort of load balancing algorithm (implemented in hardware and/or
software). Sparing is implied (i.e. each member can be a spare for the other(s).
● 4 = Sparing—Indicates that all members are active and are aware of each others.
However, their functionality is independent until failover. Each member can be a
spare for the other(s).
● 5 = Limited Sparing—Indicates that all members are active, and they may or may
not be aware of each and they are not spares for each other. Instead, their
redundancy is indicated by the IsSpare relationship.
● .. = DMTF Reserved
● 0x8000.. = Vendor Reserved
226 Dell Command | Monitor 10.4 classes and properties