This topic has not yet been rated - Rate this topic

CIM_StorageExtent class

The CIM_StorageExtent class represents the capabilities and management of the various media that exist to store data and allow data retrieval. This parent class can represent the various components of RAID (hardware or software) or a raw logical extent on top of physical media.

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

class CIM_StorageExtent : CIM_LogicalDevice
{
  uint16   Access;
  uint16   Availability;
  uint64   BlockSize;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  string   Description;
  string   DeviceID;
  boolean  ErrorCleared;
  string   ErrorDescription;
  string   ErrorMethodology;
  datetime InstallDate;
  uint32   LastErrorCode;
  string   Name;
  uint64   NumberOfBlocks;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  string   Purpose;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
};

Members

The CIM_StorageExtent class has these types of members:

Methods
Properties

Methods

The CIM_StorageExtent class has these methods.

Method	Description
Reset	Requests a reset of the logical device. Not implemented by WMI.
SetPowerState	Defines the desired power state for a logical device and when a device should be put into that state. Not implemented by WMI.

Properties

The CIM_StorageExtent class has these properties.

Access

Data type: uint16
Access type: Read-only

Describes the read/write properties of the media.

Value	Meaning
0	Unknown
1	Readable
2	Writeable
3	Read/write supported
4	Write once

Availability

Data type: uint16
Access type: Read-only

Availability and status of the device. Inherited from CIM_LogicalDevice.

Value	Meaning
1 (0x1)	Other
2 (0x2)	Unknown
3 (0x3)	Running/Full Power
4 (0x4)	Warning
5 (0x5)	In Test
6 (0x6)	Not Applicable
7 (0x7)	Power Off
8 (0x8)	Off Line
9 (0x9)	Off Duty
10 (0xA)	Degraded
11 (0xB)	Not Installed
12 (0xC)	Install Error
13 (0xD)	Power Save - Unknown The device is known to be in a power save mode, but its exact status is unknown.
14 (0xE)	Power Save - Low Power Mode The device is in a power save state but still functioning, and may exhibit degraded performance.
15 (0xF)	Power Save - Standby The device is not functioning, but could be brought to full power quickly.
16 (0x10)	Power Cycle
17 (0x11)	Power Save - Warning The device is in a warning state, though also in a power save mode.

BlockSize

Data type: uint64
Access type: Read-only

Size, in bytes, of the blocks that form the storage extent. If variable block size, then the maximum block size, in bytes, should be specified. If the block size is unknown, or if a block concept is not valid (for example, for aggregate extents, memory, or logical disks), enter a 1 (one).

For more information about using uint64 values in scripts, see Scripting in WMI.

Caption

Data type: string
Access type: Read-only

Short textual description of the object. This property is inherited from CIM_ManagedSystemElement.

ConfigManagerErrorCode

Data type: uint32
Access type: Read-only

Windows Configuration Manager error code.

Value	Meaning
0 (0x0)	Device is working properly.
1 (0x1)	Device is not configured correctly.
2 (0x2)	Windows cannot load the driver for this device.
3 (0x3)	Driver for this device might be corrupted, or the system may be low on memory or other resources.
4 (0x4)	Device is not working properly. One of its drivers or the registry might be corrupted.
5 (0x5)	Driver for the device requires a resource that Windows cannot manage.
6 (0x6)	Boot configuration for the device conflicts with other devices.
7 (0x7)	Cannot filter.
8 (0x8)	Driver loader for the device is missing.
9 (0x9)	Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.
10 (0xA)	Device cannot start.
11 (0xB)	Device failed.
12 (0xC)	Device cannot find enough free resources to use.
13 (0xD)	Windows cannot verify the device's resources.
14 (0xE)	Device cannot work properly until the computer is restarted.
15 (0xF)	Device is not working properly due to a possible re-enumeration problem.
16 (0x10)	Windows cannot identify all of the resources that the device uses.
17 (0x11)	Device is requesting an unknown resource type.
18 (0x12)	Device drivers must be reinstalled.
19 (0x13)	Failure using the VxD loader.
20 (0x14)	Registry might be corrupted.
21 (0x15)	System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.
22 (0x16)	Device is disabled.
23 (0x17)	System failure. If changing the device driver is ineffective, see the hardware documentation.
24 (0x18)	Device is not present, not working properly, or does not have all of its drivers installed.
25 (0x19)	Windows is still setting up the device.
26 (0x1A)	Windows is still setting up the device.
27 (0x1B)	Device does not have valid log configuration.
28 (0x1C)	Device drivers are not installed.
29 (0x1D)	Device is disabled. The device firmware did not provide the required resources.
30 (0x1E)	Device is using an IRQ resource that another device is using.
31 (0x1F)	Device is not working properly. Windows cannot load the required device drivers.

ConfigManagerUserConfig

Data type: boolean
Access type: Read-only

If TRUE, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.

CreationClassName

Data type: string
Access type: Read-only

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_LogicalDevice.

Description

Data type: string
Access type: Read-only

Textual description of the object. This property is inherited from CIM_ManagedSystemElement.

DeviceID

Data type: string
Access type: Read-only

Address or other identifying information to uniquely name the logical device. This property is inherited from CIM_LogicalDevice.

ErrorCleared

Data type: boolean
Access type: Read-only

If TRUE, the error reported in the LastErrorCode property is now cleared. This property is inherited from CIM_LogicalDevice.

ErrorDescription

Data type: string
Access type: Read-only

Free-form string that supplies information about the error recorded in the LastErrorCode property and corrective actions to perform. This property is inherited from CIM_LogicalDevice.

ErrorMethodology

Data type: string
Access type: Read-only

Free-form string that describes the type of error detection and correction supported by the storage extent.

InstallDate

Data type: datetime
Access type: Read-only

Date and time the object was installed. This property does not need a value to indicate that the object is installed. This property is inherited from CIM_ManagedSystemElement.

LastErrorCode

Data type: uint32
Access type: Read-only

Last error code reported by the logical device. This property is inherited from CIM_LogicalDevice.

Name

Data type: string
Access type: Read-only

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.

NumberOfBlocks

Data type: uint64
Access type: Read-only

Number of consecutive blocks, each block the size of the value contained in the BlockSize property, that form the storage extent. Total size of the storage extent can be calculated by multiplying the value of the BlockSize property by the value of this property. If the value of BlockSize is 1 (one), this property is the total size of the storage extent.

For more information about using uint64 values in scripts, see Scripting in WMI.

PNPDeviceID

Data type: string
Access type: Read-only

Windows Plug and Play device identifier of the logical device. This property is inherited from CIM_LogicalDevice.

Example: "*PNP030b"

PowerManagementCapabilities

Data type: uint16 array
Access type: Read-only

Array of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.

Value	Meaning
0 (0x0)	Unknown
1 (0x1)	Not Supported
2 (0x2)	Disabled
3 (0x3)	Enabled The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.
4 (0x4)	Power Saving Modes Entered Automatically The device can change its power state based on usage or other criteria.
5 (0x5)	Power State Settable The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.
6 (0x6)	Power Cycling Supported The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).
7 (0x7)	Timed Power On Supported The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on.

PowerManagementSupported

Data type: boolean
Access type: Read-only

If TRUE, the device can be power managed, that is, put into a power-save state. If FALSE, the integer value 1 ("Not Supported") should be the only entry in the PowerManagementCapabilities array.

This property does not indicate whether power management features are currently enabled, or if enabled, which features are supported. For more information, see the PowerManagementCapabilities array. This property is inherited from CIM_LogicalDevice.

Purpose

Data type: string
Access type: Read-only

Free form string that describes the media and its use.

Status

Data type: string
Access type: Read-only

Current status of the object. This property is inherited from CIM_ManagedSystemElement.

Values include the following:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"

StatusInfo

Data type: uint16
Access type: Read-only

State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.

Value	Meaning
1 (0x1)	Other
2 (0x2)	Unknown
3 (0x3)	Enabled
4 (0x4)	Disabled
5 (0x5)	Not Applicable

SystemCreationClassName

Data type: string
Access type: Read-only

Scoping system's creation class name. This property is inherited from CIM_LogicalDevice.

SystemName

Data type: string
Access type: Read-only

Scoping system's name. This property is inherited from CIM_LogicalDevice.

Remarks

The CIM_StorageExtent class is derived from CIM_LogicalDevice.

WMI does not implement this class. For WMI classes derived from CIM_StorageExtent, see Win32 Classes.

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.

Examples

For script code examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.

For C++ code examples, see WMI C++ Application Examples.

Requirements

Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Namespace	\root\CIMV2
MOF	Cimwin32.mof
DLL	Cimwin32.dll

Send comments about this topic to Microsoft

Build date: 11/19/2012

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Additions

ADD