Win32_PageFileUsage class

The Win32_PageFileUsage WMI class represents the file used for handling virtual memory file swapping on a Win32 system. Information contained within objects instantiated from this class specify the run-time state of the page file.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties and methods are in alphabetic order, not MOF order.

Syntax

[Dynamic, Provider("CIMWin32"), Privileges("SeCreatePagefilePrivilege"), UUID("{9B3AC16A-EEE5-11d2-B13B-00105A1F77A1}"), AMENDMENT]
class Win32_PageFileUsage : CIM_LogicalElement
{
  string   Caption;
  string   Description;
  datetime InstallDate;
  string   Status;
  uint32   AllocatedBaseSize;
  uint32   CurrentUsage;
  string   Name;
  uint32   PeakUsage;
  boolean  TempPageFile;
};

Members

The Win32_PageFileUsage class has these types of members:

• Properties

Properties

The Win32_PageFileUsage class has these properties.

AllocatedBaseSize

Data type: uint32

Access type: Read-only

Qualifiers: MappingStrings ("Win32API|MEMORYSTATUS|dwTotalPageFile"), units ("megabytes")

Actual amount of disk space allocated for use with this page file. This value corresponds to the range established in Win32_PageFileSetting under the InitialSize and MaximumSize properties, set at system startup.

Example: 178

Caption

Data type: string

Access type: Read-only

Qualifiers: MaxLen (64), DisplayName ("Caption")

A short textual description of the object.

This property is inherited from CIM_ManagedSystemElement.

CurrentUsage

Data type: uint32

Access type: Read-only

Qualifiers: MappingStrings ("Win32API|MEMORYSTATUS"), units ("megabytes")

Amount of disk space currently used by the page file.

Description

Data type: string

Access type: Read-only

Qualifiers: DisplayName ("Description")

A textual description of the object.

This property is inherited from CIM_ManagedSystemElement.

InstallDate

Data type: datetime

Access type: Read-only

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.

Name

Data type: string

Access type: Read-only

Qualifiers: Key, Override ("Name"), MappingStrings ("WMI")

Name of the page file.

Example: "C:\PAGEFILE.SYS"

PeakUsage

Data type: uint32

Access type: Read-only

Qualifiers: MappingStrings ("WMI"), units ("megabytes")

Highest use page file.

Status

Data type: string

Access type: Read-only

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")

TempPageFile

Data type: boolean

Access type: Read-only

Qualifiers: MappingStrings ("Win32Registry|System\\CurrentControlSet\\Control\\Session Manager\\Memory Management|TempPageFile")

If true, a temporary page file has been created, usually because there is no permanent page file on the current computer system.

Remarks

The Win32_PageFileUsage class is derived from CIM_LogicalElement.

Requirements

Requirement	Value
Minimum supported client	Windows Vista
Minimum supported server	Windows Server 2008
Namespace	Root\CIMV2
MOF	CIMWin32.mof
DLL	CIMWin32.dll

See also

CIM_LogicalElement

Operating System Classes