P00121_-_HP_Smart_Array_Profile

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6.6 Disk Sparing

HPSA_StorageExtent

HPSA_StoragePool

Concrete Pool

ConcreteComponent

HPSA_StorageRedundancySet

MemberOfCollection

HPSA_StorageExtent

Spare

IsSpare

StorageExtent

StorageRedundancySetStoragePool

Figure 8 – HP Smart Array profile: Disk Sparing Class Diagram

The Disk Sparing profile is used to model spare drives for raid sets. All the drives (HPSA_StorageExtent

instances) in a raid shall be associated to an instance of HPSA_StorageRedundancySet via

CIM_MemberOfCollection. Any spare drives (HPSA_StorageExtent) shall be associated to the same

Storage Redundancy Set via the CIM_IsSpare association.

For Smart Array, any raid set may have more than one spare drive and any drive configured as a spare

can be a spare to more than one Storage Redundancy Collection.

When a spare drive is “in use”, the HPSA_StorageExtent will be associated to the failed drive(s) via

CIM_Spared association.

See Section 9.6 for specific use cases.