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Resize-VHD

Last Updated: 3/8/2017

SYNOPSIS

Resizes a virtual hard disk.

SYNTAX

Size (Default)

Resize-VHD [-Path] <String[]> [-SizeBytes] <UInt64> [-AsJob] [-Passthru] [-CimSession <CimSession[]>]
 [-ComputerName <String[]>] [-Credential <PSCredential[]>] [-WhatIf] [-Confirm] [<CommonParameters>]

MinimumSize

Resize-VHD [-Path] <String[]> [-ToMinimumSize] [-AsJob] [-Passthru] [-CimSession <CimSession[]>]
 [-ComputerName <String[]>] [-Credential <PSCredential[]>] [-WhatIf] [-Confirm] [<CommonParameters>]

DESCRIPTION

The Resize-VHD cmdlet resizes a virtual hard disk. This cmdlet lets you shrink or expand the size of a virtual hard disk, but the shrink operation is allowed only on VHDX virtual hard disks. The shrink operation fails if it would shrink the virtual disk to less than its minimum size (available through the VHDX object's MinimumSize property).

Resize-VHD is an offline operation; the virtual hard disk must not be attached when the operation is initiated.

EXAMPLES

Example 1

PS C:\> Resize-VHD -Path c:\BaseVHD.vhd -SizeBytes 1TB

Expands the VHDX to 1 terabyte (assuming that the previous size was less than the new size prior to the command).

Example 2

PS C:\> Resize-VHD -Path c:\BaseVHDX.vhdx -SizeBytes 1TB

Shrinks the VHDX to one terabyte (assuming that the virtual hard disk object associated with the file path has a MinimumSize less than or equal to 1TB).

Example 3

PS C:\> Resize-VHD -Path c:\BaseVHDX.vhdx -ToMinimumSize

Shrinks the VHDX to its minimum possible size.

PARAMETERS

-AsJob

Runs the cmdlet as a background job.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
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[]
Parameter Sets: (All)
Aliases: 

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

-ComputerName

Specifies one or more Hyper-V hosts on which a virtual hard disk is to be resized. NetBIOS names, IP addresses, and fully qualified domain names are allowable. The default is the local computer. Use localhost or a dot (.) to specify the local computer explicitly.

Type: String[]
Parameter Sets: (All)
Aliases: 

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

-Confirm

Prompts you for confirmation before running the cmdlet.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

-Credential

Specifies one or more user accounts that have permission to perform this action. The default is the current user.

Type: PSCredential[]
Parameter Sets: (All)
Aliases: 

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

-Passthru

Specifies that an object is to be passed through to the pipeline representing the virtual hard disk to be resized.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

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

-Path

Specifies the path to the virtual hard disk that is to be resized.

Type: String[]
Parameter Sets: (All)
Aliases: FullName

Required: True
Position: 0
Default value: None
Accept pipeline input: True (ByPropertyName, ByValue)
Accept wildcard characters: False

-SizeBytes

Specifies the size to which the virtual hard disk is to be resized.

Type: UInt64
Parameter Sets: Size
Aliases: 

Required: True
Position: 1
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-ToMinimumSize

Specifies that the virtual hard disk is to be resized to its minimum possible size.

Type: SwitchParameter
Parameter Sets: MinimumSize
Aliases: 

Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-WhatIf

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

Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

CommonParameters

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

INPUTS

OUTPUTS

NOTES

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