Export (0) Print
Expand All

Enable-DedupVolume

Windows Server 2012 R2 and Windows 8.1

Updated: October 17, 2013

Applies To: Windows 8.1, Windows PowerShell 4.0, Windows Server 2012 R2

Enable-DedupVolume

Enables data deduplication on one or more volumes.

Syntax

Parameter Set: Enable0
Enable-DedupVolume [-Volume] <String[]> [-AsJob] [-CimSession <CimSession[]> ] [-DataAccess] [-ThrottleLimit <Int32> ] [-UsageType <UsageType> ] [ <CommonParameters>]




Detailed Description

The Enable-DedupVolume cmdlet enables data deduplication on one or more volumes . You can use the Set-DedupVolume cmdlet to customize the data deduplication settings. Data deduplication is disabled by default. Data deduplication is not supported for certain volumes, such as any volume that is not a NTFS file system or any volume that is smaller than 2 GB.

Parameters

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShell® background jobs, see about_Jobs.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-CimSession<CimSession[]>

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.


Aliases

Session

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-DataAccess

Indicates that data access to deduplicated files on the volume is disabled.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ThrottleLimit<Int32>

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-UsageType<UsageType>

Specifies the expected type of workload for the volume. The cmdlet sets several low-level settings to default values that are appropriate to the usage type that you specify. If you specify this parameter for a volume that already has data deduplication enabled, the cmdlet modifies the settings to the appropriate default values. If you run this cmdlet on a volume that already has data deduplication enabled but do not specify this parameter, the cmdlet does not change the usage type. The acceptable values for this parameter are: 

     -- HyperV. A volume for Hyper-V storage.
     -- Default. A general purpose volume. If you do not specify a value for this parameter, the cmdlet uses a value of Default.

If you specify a value of HyperV, the computer that has data deduplication enabled cannot be the same computer that runs Hyper-V. The two computers must communicate remotely.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-Volume<String[]>

Specifies an array of system volumes. Specify one or more volume IDs, drive letters (such as D:), or volume GUID pathnames (using the form \\?\Volume{{GUID}}\). Separate multiple volumes with a comma.


Aliases

Path,Name,DeviceId

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

  • System.String[]

Outputs

The output type is the type of the objects that the cmdlet emits.

  • Microsoft.Management.Infrastructure.CimInstance#

    The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.


Examples

Example 1: Enable data deduplication on volumes

This command enables data deduplication on volumes D:, E:, and F:. This command does not specify a value for the UsageType parameter, and, therefore, the cmdlet uses defaults for general purpose file server operations.


PS C:\> Enable-DedupVolume -Volume "D:","E:","F:"

Example 2: Enable data deduplication on a volume for Hyper-V storage

This command enables data duplication on the D: volume, to be used for Hyper-V storage.


PS C:\> Enable-DedupVolume -Volume D: -UsageType HyperV

Example 3: Enable data deduplication on a volume by using a GUID

This command enables data deduplication for the volume that has the GUID 26a21bda-a627-11d7-9931-806e6f6e6963.


PS C:\> Enable-DedupVolume -Volume \\?\Volume{26a21bda-a627-11d7-9931-806e6f6e6963}\

Example 4: Resume IO activity on a specified volume

This command resumes IO activity for data deduplication on the specified volume. Effectively, this command causes the data deduplication file system mini-filter to attach to the specified volume


PS C:\> Enable-DedupVolume -Volume X: -DataAccess

Related topics

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft