P00121_-_HP_Smart_Array_Profile

54 Version 1.3.001
In this case the pool with only one disk can only support RAID 0 logical volumes. The pool with two drives
can support both RAID 0 and RAID 1 logical volumes.
9.6 Disk Sparing – Multiple Spares
HPSA_StorageExtent:001
HPSA_StorageExtent:002
HPSA_StorageExtent:003
HPSA_StoragePool:1
Concrete Pool
ConcreteComponent
HPSA_StorageRedundancySet:A
MemberOfCollection
HPSA_StorageExtent:005
Spare
HPSA_StoragePool:1
Concrete Pool
HPSA_StorageExtent:007
HPSA_StorageExtent:008
HPSA_StorageExtent:009
ConcreteComponent
HPSA_StorageRedundancySet:B
MemberOfCollection
IsSpare
HPSA_StorageExtent:004
Spare
IsSpare
Figure 23 - HP Smart Array profile: Disk sparing – Multiple Spares
Redundancy sets can have multiple spares and also a disk drive can be a spare to more than one
redundancy set. In Figure 23, we see that HPSA_StorageRedundancySet:A has two CIM_IsSpare
associations to two HPSA_StorageExtent instances. Also, HPSA_StorageExtent:005 has CIM_IsSpare
associations to both HPSA_StorageRedundancySet:A and HPSA_StorageRedundancySet:B.
9.7 Disk Sparing - Drive failure example
The following sections describe the implementation of Disk Sparing for Smart Array controllers.