Merge-VHD
Merges virtual hard disks.
Syntax
Merge-VHD
[-Path] <String>
[[-DestinationPath] <String>]
[-Force]
[-AsJob]
[-Passthru]
[-CimSession <CimSession[]>]
[-ComputerName <String[]>]
[-Credential <PSCredential[]>]
[-WhatIf]
[-Confirm]
[<CommonParameters>]Description
The Merge-VHD cmdlet merges virtual hard disks in a differencing virtual hard disk chain. The merge is from a specified source child disk to a specified destination child disk.
Merge is an offline operation; the virtual hard disk chain must not be attached when merge is initiated.
Examples
Example 1
PS C:\> Merge-VHD -Path c:\test\VDisk4.avhdx -DestinationPath c:\test\VDisk2.avhdxThis example merges the virtual hard disk from VDisk4 to VDisk2. It merges all data from VDisk4 and VDisk3, up to VDisk2. In this virtual hard disk chain VDisk4 is a child of VDisk3, which is a child of VDisk2, which is a child of VDisk1. Finally, VDisk1 is a child of the Parent virtual hard disk.
In this example, all referenced virtual hard disks reside within C:\test. The VDisk4.avhdx and
VDisk3.avhdx are not deleted, however, they are no longer valid virtual hard disk files after the
operation completes.
Parameters
-AsJob
Runs the cmdlet as a background job.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| 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[] |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ComputerName
Specifies one or more Hyper-V hosts on which virtual hard disks are to be merged. 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[] |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Confirm
Prompts you for confirmation before running the cmdlet.
| Type: | SwitchParameter |
| Aliases: | cf |
| Position: | Named |
| Default value: | False |
| Required: | 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[] |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-DestinationPath
Specifies the path to the child in the virtual hard disk chain that is the destination for the merge command.
| Type: | String |
| Position: | 1 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Force
Runs the cmdlet without prompting for confirmation.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Passthru
Specifies that an object is to be passed through to the pipeline representing the merged virtual hard disk.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Path
Specifies the path to the child in the virtual hard disk chain that is the source for the merge command. If a filename or relative path is specified, the virtual hard disk path will be calculated relative to the current working directory.
| Type: | String |
| Aliases: | FullName |
| Position: | 0 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
| Type: | SwitchParameter |
| Aliases: | wi |
| Position: | Named |
| Default value: | False |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
Inputs
VHDObject
Outputs
Microsoft.Vhd.PowerShell.VirtualHardDisk