Key |
InstanceID
|
string
|
|
Within the scope of the instantiating Namespace, InstanceID opaquely and uniquely identifies an instance of this class. This will be of the form'IBMTSDS:<IBMTSDS_StorageSystem.Name>'. |
Read Only |
ElementName
|
string
|
|
A user-friendly name for the object. Will be of the form'RedundancySet for<IBMTSDS_StorageSystem.Name>'. |
MaxNumberSupported
|
uint32
|
|
MaxNumberSupported indicates the largest number of elements that can participate in the RedundancySet. A value of 0 indicates there is no limit on the number of elements. For the DS, this is set to 2. |
MinNumberNeeded
|
uint32
|
|
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. For the DS, this is set to 1. |
RedundancyStatus
|
uint16
|
Unknown | 0 |
Other | 1 |
Redundant | 2 |
Redundancy Lost | 3 |
DMTF Reserved | .. |
Vendor Reserved | 0x8000.. |
|
The DS CIM Agent does not support status of single-point-of-failure, so RedundancyStatus is always'Unknown'. |
TypeOfSet
|
uint16
|
Unknown | 0 |
Other | 1 |
N+1 | 2 |
Load Balanced | 3 |
Sparing | 4 |
Limited Sparing | 5 |
DMTF Reserved | .. |
Vendor Reserved | 0x8000.. |
|
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.- Load Balanced (=3) indicates all members are active. However, there functionality is not independent of each other. Their functioning is determined by some sort of load balancing algrothim (implemented in hardware and/or software).'Sparing'is implied (i.e. each member can be a spare for the other(s).- Sparing (=4) 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).- Limited Sparing (=5) 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.The DS system uses Sparing. |
Read Write |