Disable-DedupVolume

Disables data deduplication activity on one or more volumes.

Syntax

Disable-DedupVolume
       [-Volume] <String[]>
       [-AsJob]
       [-CimSession <CimSession[]>]
       [-DataAccess]
       [-ThrottleLimit <Int32>]
       [<CommonParameters>]

Description

The Disable-DedupVolume cmdlet disables further data deduplication activity on one or more volumes. After you disable data deduplication, the volume remains in a deduplicated state and the existing deduplicated data is accessible. The server stops running data deduplication jobs for the volume and new data is not deduplicated. To undo data deduplication on a volume, use the Start-DedupJob cmdlet and specify Unoptimization for the Type parameter.

After you disable data deduplication on a volume, you can perform all read-only deduplication cmdlet operations on the volume. For example, you can use the Get-DedupStatus cmdlet to get deduplication status for a volume that has data deduplication metadata. After you disable data deduplication on a volume, you cannot use the data deduplication job-related cmdlets and the Update-DedupStatus cmdlet to perform operations on the volume. For example, you cannot use Start-DedupJob to start a data deduplication job for a volume on which you have disabled data deduplication.

Examples

Example 1: Disable data deduplication on volumes

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

This command disables data deduplication for volumes D:, E:, F:, and G:.

Example 2: Disable data deduplication on a volume by using a GUID

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

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

Example 3: Suspend I/O activity for a specified volume/

PS C:\> Disable-DedupVolume -Volume "X:" -DataAccess

This command suspends I/O activity for data deduplication on the specified volume. Effectively, this command causes the data deduplication file system mini-filter to detach from the specified volume. After this command completes, I/O to data deduplication files fails with an ERROR_INVALID_FUNCTION error until either the Enable-DedupVolume -DataAccess command runs, or the restarts.

Required Parameters

-Volume

Specifies an array of system volumes for which to disable data deduplication. Specify one or more volume IDs, drive letters, or volume GUID paths. For drive letters, use the format D:. For volume GUID paths, use the format \\?\Volume{{GUID}}. Separate multiple volumes with a comma.

Type:String[]
Aliases:DeviceId, Path, Name
Position:0
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False

Optional 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.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-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.

Type:CimSession[]
Aliases:Session
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.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ThrottleLimit

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.

Type:Int32
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False

Inputs

System.String[]

Outputs

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.