CIM_StorageRedundancyGroup class
The CIM_StorageRedundancyGroup class represents mass storage-related redundancy information. Storage redundancy groups are used to protect user data. They are made up of one or more physical extents, or one or more aggregate physical extents. Storage redundancy groups may overlap; however, the underlying extents within the overlap should not contain any check data.
Important
The DMTF (Distributed Management Task Force) CIM (Common Information Model) classes are the parent classes upon which WMI classes are built. WMI currently supports only the CIM 2.x version schemas.
The following syntax is simplified from Managed Object Format (MOF) code and includes all of its inherited properties. Properties are listed in alphabetic order, not MOF order.
Syntax
[Abstract, UUID("{6D477DBC-E3D1-11d2-8601-0000F8102E5F}"), AMENDMENT]
class CIM_StorageRedundancyGroup : CIM_RedundancyGroup
{
string Caption;
string Description;
datetime InstallDate;
string Name;
string Status;
string CreationClassName;
uint16 RedundancyStatus;
uint16 TypeOfAlgorithm;
};
Members
The CIM_StorageRedundancyGroup class has these types of members:
Properties
The CIM_StorageRedundancyGroup class has these properties.
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Caption
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (64), DisplayName ("Caption")
A short textual description of the object.
This property is inherited from CIM_ManagedSystemElement.
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CreationClassName
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Name of the class or subclass used in the creation of an instance. When used with other key properties of the class, this property allows all instances of the class and its subclasses to be uniquely identified.
This property is inherited from CIM_RedundancyGroup.
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Description
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Data type: string
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Access type: Read-only
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Qualifiers: DisplayName ("Description")
A textual description of the object.
This property is inherited from CIM_ManagedSystemElement.
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InstallDate
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Data type: datetime
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Access type: Read-only
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Qualifiers: MappingStrings ("MIF.DMTF|ComponentID|001.5"), DisplayName ("Install Date")
Indicates when the object was installed. Lack of a value does not indicate that the object is not installed.
This property is inherited from CIM_ManagedSystemElement.
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Name
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Data type: string
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Access type: Read-only
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Qualifiers: DisplayName ("Name")
Label by which the object is known. When subclassed, this property can be overridden to be a key property.
This property is inherited from CIM_ManagedSystemElement.
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RedundancyStatus
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Data type: uint16
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Access type: Read-only
Information about the state of the redundancy group.
This property is inherited from CIM_RedundancyGroup.
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Unknown (0)
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Unknown.
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Other (1)
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Other.
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Fully Redundant (2)
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All of the configured redundancy is available.
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Degraded Redundancy (3)
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Reduced amount of redundancy is available due to some failures.
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Redundancy Lost (4)
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Redundancy is unavailable due to a sufficient number of failures. The next failure will cause overall failure.
Status
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (10), DisplayName ("Status")
String that indicates the current status of the object. Operational and non-operational status can be defined. Operational status can include "OK", "Degraded", and "Pred Fail". "Pred Fail" indicates that an element is functioning properly, but is predicting a failure (for example, a SMART-enabled hard disk drive).
Non-operational status can include "Error", "Starting", "Stopping", and "Service". "Service" can apply during disk mirror-resilvering, reloading a user permissions list, or other administrative work. Not all such work is online, but the managed element is neither "OK" nor in one of the other states.
This property is inherited from CIM_ManagedSystemElement.
Values include the following:
OK ("OK")
Error ("Error")
Degraded ("Degraded")
Unknown ("Unknown")
Pred Fail ("Pred Fail")
Starting ("Starting")
Stopping ("Stopping")
Service ("Service")
Stressed ("Stressed")
NonRecover ("NonRecover")
No Contact ("No Contact")
Lost Comm ("Lost Comm")
TypeOfAlgorithm
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Data type: uint16
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Access type: Read-only
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Qualifiers: MappingStrings ("MIF.DMTF|Redundancy Group|001.2")
Algorithm used for data redundancy and reconstruction. The value 0 is not valid in the CIM schema since it represents that no redundancy exists in DMI. In which case, the object should not be instantiated.
Undefined (0)
Other (1)
Unknown (2)
Copy (3)
XOR (4)
P+Q (5)
S (6)
P+S (7)
Remarks
The CIM_StorageRedundancyGroup class is derived from CIM_RedundancyGroup.
WMI does not implement this class.
This documentation is derived from the CIM class descriptions published by the DMTF. Microsoft may have made changes to correct minor errors, conform to Microsoft SDK documentation standards, or provide more information.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista |
| Minimum supported server |
Windows Server 2008 |
| Namespace |
Root\CIMV2 |
| MOF |
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| DLL |
|