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Win32_DiskPartition class (Windows)

The Win32_DiskPartition WMI class represents the capabilities and management capacity of a partitioned area of a physical disk on a computer system running Windows. Example: Disk #0, Partition #1.The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

class Win32_DiskPartition : CIM_DiskPartition { uint16   Access; uint16   Availability; uint64   BlockSize; boolean  Bootable; boolean  BootPartition; string.  Caption; uint32   ConfigManagerErrorCode; boolean  ConfigManagerUserConfig; string.  CreationClassName; string   Description; string   DeviceID; uint32   DiskIndex; boolean  ErrorCleared; string   ErrorDescription; string   ErrorMethodology; uint32   HiddenSectors; uint32   Index; datetime InstallDate; uint32   LastErrorCode; string   Name; uint64   NumberOfBlocks; string   PNPDeviceID; uint16   PowerManagementCapabilities[]; boolean  PowerManagementSupported; boolean  PrimaryPartition; string   Purpose; boolean  RewritePartition; uint64   Size; uint64   StartingOffset; string   Status; uint16   StatusInfo; string   SystemCreationClassName; string   SystemName; string   Type; };

Members

The Win32_DiskPartition class has these types of members:Properties

Properties

The Win32_DiskPartition class has these properties.AccessData type: uint16Access type: Read-onlyMedia access available.ValueMeaning0Unknown1Readable2Writable3Read/write Supported4Write Once AvailabilityData type: uint16Access type: Read-onlyAvailability and status of the device. Inherited from CIM_LogicalDevice.ValueMeaning1 (0x1)Other2 (0x2)Unknown3 (0x3)Running or Full Power4 (0x4)Warning5 (0x5)In Test6 (0x6)Not Applicable7 (0x7)Power Off8 (0x8)Offline9 (0x9)Off Duty10 (0xA)Degraded11 (0xB)Not Installed12 (0xC)Install Error13 (0xD)Power Save - UnknownThe device is known to be in a power save mode, but its exact status is unknown.14 (0xE)Power Save - Low Power ModeThe device is in a power save state but still functioning, and may exhibit degraded performance.15 (0xF)Power Save - StandbyThe device is not functioning, but could be brought to full power quickly.16 (0x10)Power Cycle17 (0x11)Power Save - WarningThe device is in a warning state, though also in a power save mode. BlockSizeData type: uint64Access type: Read-onlySize in bytes of the blocks which form this storage extent. If unknown or if a block concept is not valid (for example, for aggregate extents, memory or logical disks), enter a 1.For more information about using uint64 values in scripts, see Scripting in WMI.BootableData type: booleanAccess type: Read-onlyComputer can be booted from this partition.BootPartitionData type: booleanAccess type: Read-onlyPartition is the active partition. The operating system uses the active partition when booting from a hard disk.CaptionData type: string.Access type: Read-onlyShort description of the object.ConfigManagerErrorCodeData type: uint32Access type: Read-onlyWindows Configuration Manager error code.ValueMeaning0 (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. ConfigManagerUserConfigData type: booleanAccess type: Read-onlyIf True, the device is using a user-defined configuration.CreationClassNameData type: string.Access type: Read-onlyName of the first concrete class to appear in the inheritance chain used in the creation of an instance. When used with the other key properties of the class, the property allows all instances of this class and its subclasses to be uniquely identified.DescriptionData type: stringAccess type: Read-onlyDescription of the object.DeviceIDData type: stringAccess type: Read-onlyQualifiers: KeyUnique identifier of the disk drive and partition, from the rest of the system.DiskIndexData type: uint32Access type: Read-onlyIndex number of the disk containing this partition.Example: 0ErrorClearedData type: booleanAccess type: Read-onlyIf True, the error reported in LastErrorCode is now cleared.ErrorDescriptionData type: stringAccess type: Read-onlyInformation about the error recorded in LastErrorCode, and information on any corrective actions that may be taken.ErrorMethodologyData type: stringAccess type: Read-onlyType of error detection and correction supported by this storage extent.HiddenSectorsData type: uint32Access type: Read-onlyNumber of hidden sectors in the partition.Example: 63IndexData type: uint32Access type: Read-onlyIndex number of the partition.Example: 1InstallDateData type: datetimeAccess type: Read-onlyDate the object was installed. This property does not need a value to indicate that the object is installed.LastErrorCodeData type: uint32Access type: Read-onlyLast error code reported by the logical device.NameData type: stringAccess type: Read-onlyLabel by which the object is known. When subclassed, the property can be overridden to be a key property.NumberOfBlocksData type: uint64Access type: Read-onlyTotal number of consecutive blocks, each block the size of the value contained in the BlockSize property, which form this 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, this property is the total size of the storage extent.For more information about using uint64 values in scripts, see Scripting in WMI.PNPDeviceIDData type: stringAccess type: Read-onlyWindows Plug and Play device identifier of the logical device.Example: "*PNP030b"PowerManagementCapabilitiesData type: uint16 arrayAccess type: Read-onlyArray of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.ValueMeaning0 (0x0)Unknown1 (0x1)Not Supported2 (0x2)Disabled3 (0x3)EnabledThe power management features are currently enabled but the exact feature set is unknown or the information is unavailable.4 (0x4)Power Saving Modes Entered AutomaticallyThe device can change its power state based on usage or other criteria.5 (0x5)Power State SettableThe SetPowerState method is supported. This method is found on the parent CIM_LogicalDeviceclass and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.6 (0x6)Power Cycling SupportedThe SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).7 (0x7)Timed Power-On SupportedThe SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) andTime set to a specific date and time, or interval, for power-on. PowerManagementSupportedData type: booleanAccess type: Read-onlyIf True, the device can be power-managed (can be put into suspend mode, and so on). The property does not indicate that power management features are currently enabled, only that the logical device is capable of power management.PrimaryPartitionData type: booleanAccess type: Read-onlyIf True, this is the primary partition.PurposeData type: stringAccess type: Read-onlyDescription of the media and its use.RewritePartitionData type: booleanAccess type: Read-onlyIf True, the partition information has changed. When you change a partition (with IOCTL_DISK_SET_DRIVE_LAYOUT), the system uses this property to determine which partitions have changed and need their information rewritten. If TRUE, the partition must be rewritten.SizeData type: uint64Access type: Read-onlyQualifiers: Units (Bytes)Total size of the partition.Example: 1059045376For more information about using uint64 values in scripts, see Scripting in WMI.StartingOffsetData type: uint64Access type: Read-onlyQualifiers: Units (Bytes)Starting offset (in bytes) of the partition.Example: 32256For more information about using uint64 values in scripts, see Scripting in WMI.StatusData type: stringAccess type: Read-onlyQualifiers: MaxLen (10)Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive, may be functioning properly but predicting a failure in the near future). Nonoperational statuses include: "Error", "Starting", "Stopping", and "Service". The latter, "Service", could apply during mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, yet the managed element is neither "OK" nor in one of the other states.The values are:"OK""Error""Degraded""Unknown""Pred Fail""Starting""Stopping""Service""Stressed""NonRecover""No Contact""Lost Comm"StatusInfoData type: uint16Access type: Read-onlyState 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.ValueMeaning1 (0x1)Other2 (0x2)Unknown3 (0x3)Enabled4 (0x4)Disabled5 (0x5)Not Applicable SystemCreationClassNameData type: stringAccess type: Read-onlyCreation class name of the scoping system.SystemNameData type: stringAccess type: Read-onlyName of the scoping system.TypeData type: stringAccess type: Read-onlyType of the partition.The values are:"Unused""12-bit FAT""Xenix Type 1""Xenix Type 2""16-bit FAT""Extended Partition""MS-DOS V4 Huge""Installable File System""PowerPC Reference Platform""UNIX""NTFS""Win95 w/Extended Int 13""Extended w/Extended Int 13""Logical Disk Manager""Unknown"

Remarks

The Win32_DiskPartition class is derived from CIM_DiskPartition.

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 clientWindows 2000 Professional [desktop apps only]Minimum supported serverWindows 2000 Server [desktop apps only]Namespace\root\CIMV2MOFCimwin32.mofDLLCimwin32.dll

See also

Operating System Classes  Send comments about this topic to MicrosoftBuild date: 11/19/2012