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Resize-Partition

Updated: July 17, 2013

Applies To: Windows Server 2012

Resize-Partition

Resizes a partition and the underlying file system.

Syntax

Parameter Set: ByDriveLetter
Resize-Partition [-Size] <UInt64> -DriveLetter <Char[]> [-AsJob] [-CimSession <CimSession[]> ] [-PassThru] [-ThrottleLimit <Int32> ] [-Confirm] [-WhatIf] [ <CommonParameters>]

Parameter Set: ById
Resize-Partition [-Size] <UInt64> -DiskId <String[]> -Offset <UInt64[]> [-AsJob] [-CimSession <CimSession[]> ] [-PassThru] [-ThrottleLimit <Int32> ] [-Confirm] [-WhatIf] [ <CommonParameters>]

Parameter Set: ByNumber
Resize-Partition [-DiskNumber] <UInt32[]> [-PartitionNumber] <UInt32[]> [-Size] <UInt64> [-AsJob] [-CimSession <CimSession[]> ] [-PassThru] [-ThrottleLimit <Int32> ] [-Confirm] [-WhatIf] [ <CommonParameters>]

Parameter Set: InputObject (cdxml)
Resize-Partition [-Size] <UInt64> -InputObject <CimInstance[]> [-AsJob] [-CimSession <CimSession[]> ] [-PassThru] [-ThrottleLimit <Int32> ] [-Confirm] [-WhatIf] [ <CommonParameters>]




Detailed Description

The Resize-Partition cmdlet resizes a partition and the underlying file system.

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

-DiskId<String[]>

Specifies an ID used to identify a disk in the system.


Aliases

none

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-DiskNumber<UInt32[]>

Specifies the number of the disk.


Aliases

none

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-DriveLetter<Char[]>

Specifies a letter used to identify a drive or volume in the system.


Aliases

none

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-InputObject<CimInstance[]>

Accepts an object from the pipeline as input.


Aliases

none

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByValue)

Accept Wildcard Characters?

false

-Offset<UInt64[]>

Specifies the starting offset, in bytes.


Aliases

none

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-PartitionNumber<UInt32[]>

Specifies the number of the partition. The number of the partition to be resized.


Aliases

Number

Required?

true

Position?

2

Default Value

none

Accept Pipeline Input?

True (ByPropertyName)

Accept Wildcard Characters?

false

-PassThru

Sends items from the interactive window down the pipeline as input to other cmdlets. By default, this cmdlet does not generate any output.
To send items from the interactive window down the pipeline, click to select the items and then click OK. Shift-click and Ctrl-click are supported.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Size<UInt64>

Specifies the size of the partition to create. If not specified, then the number will default to Bytes. The acceptable values for this parameter are: Bytes, KB, MB, GB, or TB. The size may be defined by a user.


Aliases

none

Required?

true

Position?

3

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

-Confirm

Prompts you for confirmation before running the cmdlet.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

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.

  • Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_Partition

    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.


Outputs

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

  • Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_Partition

    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

This example starts with a 931.39 GB partition.


 

PS C:\> Get-Partition -DiskNumber 3 -PartitionNumber 2
Disk Number: 3 
 
PartitionNumber  DriveLetter Offset                                        Size Type 
---------------  ----------- ------                                        ---- ---- 
2                D           135266304                                931.39 GB Basic 

 

Resize the partition to 900GB.


PS C:\> Resize-Partition -DiskNumber 3 -PartitionNumber 2 -Size (900GB)

 

The partition is now 900GB.


PS C:\> Get-Partition -DiskNumber 3 -PartitionNumber 2
Disk Number: 3 
 
PartitionNumber  DriveLetter Offset                                        Size Type 
---------------  ----------- ------                                        ---- ---- 
2                D           135266304                                   900 GB Basic 

 

Get the partition sizes.


PS C:\> $size = (Get-PartitionSupportedSize –DiskNumber 3 –PartitionNumber 2)

 

Resize to the maximum size.


PS C:\> Resize-Partition -DiskNumber 3 –PartitionNumber 2 -Size $size.MaximumSize

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