functions/disk/New-DcnVhdDisk.ps1
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function New-DcnVhdDisk { <# .SYNOPSIS New-DcnVhdDisk creates a new VHD .DESCRIPTION New-DcnVhdDisk will create a new VHD. .PARAMETER Destination The destination path of the VHD .PARAMETER Name The name of the VHD .PARAMETER FileName The file name of the VHD .PARAMETER VhdType The type of the harddisk. This can either by VHD (version 1) or VHDX (version 2) The default is VHDX. .PARAMETER Size The size of the VHD in MB. If no size is used the default will be set to the type of VHD. The default for VHD is 2 TB and for VHDX 64TB .PARAMETER FixedSize Set the VHD to have a fixed size or not. Be careful using this parameter. Fixed will make the VHD use the space assigned in -Size .PARAMETER ReadOnly Set the VHD to readonly .PARAMETER Force Forcefully create the neccesary items .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .NOTES Author: Sander Stad (@sqlstad, sqlstad.nl) Website: https://psdatabaseclone.org Copyright: (C) Sander Stad, sander@sqlstad.nl License: MIT https://opensource.org/licenses/MIT .LINK https://psdatabaseclone.org/ .EXAMPLE New-DcnVhdDisk -Destination C:\temp -Name Database1 -Size 1GB Creates a dynamic VHD in C:\Temp named Database1.vhdx with a size of 1GB #> [CmdLetBinding(SupportsShouldProcess = $true)] [OutputType('System.String')] param( [parameter(Mandatory = $true)] [string]$Destination, [string]$Name, [string]$FileName, [ValidateSet('VHD', 'VHDX', 'vhd', 'vhdx')] [string]$VhdType, [uint64]$Size, [switch]$FixedSize, [switch]$ReadOnly, [switch]$Force, [switch]$EnableException ) begin { # Check if the console is run in Administrator mode if ( -not (Test-PSFPowerShell -Elevated) ) { Stop-PSFFunction -Message "Module requires elevation. Please run the console in Administrator mode" -Continue } # Check the destination path if (-not (Test-Path $Destination)) { if ($PSCmdlet.ShouldProcess($Destination, "Creating destination directory")) { try { Write-PSFMessage -Message "Creating destination directory $Destination" -Level Verbose $null = New-Item -Path $Destination -ItemType Directory -Force } catch { Stop-PSFFunction -Message "Couldn't create directory $Destination" -ErrorRecord $_ -Target $Destination -Continue } } } # Check the vhd type if (-not $VhdType) { Write-PSFMessage -Message "Setting vhd type to 'VHDX'" -Level Verbose $VhdType = 'VHDX' } # Make sure thevalue is in uppercase all th time $VhdType = $VhdType.ToUpper() # Check the size of the file if (-not $Size) { switch ($VhdType) { 'VHD' { $Size = 2048MB } 'VHDX' { $Size = 64TB } } } else { if ($VhdType -eq 'VHD' -and $Size -gt 2TB) { Stop-PSFFunction -Message "Size cannot exceed 2TB when using VHD type." } elseif ($VhdType -eq 'VHDX' -and $Size -gt 64TB) { Stop-PSFFunction -Message "Size cannot exceed 64TB when using VHDX type." } if ($Size -lt 3MB) { Stop-PSFFunction -Message "The size of the vhd cannot be smaller than 3MB" -Continue } } # Make sure the size in MB instead of some other version $Size = $Size / 1MB # Check the name and file name parameters if (-not $Name -and -not $FileName) { Stop-PSFFunction -Message "Either set the Name or FileName parameter" } else { if (-not $FileName) { $FileName = "$Name.$($VhdType.ToLower())" Write-PSFMessage -Message "Setting file name to $FileName" -Level Verbose } elseif ($FileName) { if (($FileName -notlike "*.vhd") -and ($FileName -notlike "*.vhdx")) { Stop-PSFFunction -Message "The filename needs to have the .vhd or .vhdx extension" -Target $FileName -Continue } } } # Set the vhd path if ($Destination.EndsWith("\")) { $vhdPath = "$Destination$FileName" } else { $vhdPath = "$Destination\$FileName" } Write-PSFMessage -Message "Vhd path set to $vhdPath" -Level Verbose # Check if the file does not yet exist if (Test-Path $vhdPath) { if (-not $Force) { Stop-PSFFunction -Message "The vhd file already exists" -Continue } else { try { Remove-Item -Path $vhdPath -Force:$Force } catch { Stop-PSFFunction -Message "Could not remove VHD '$vhdPath'" -Continue -ErrorRecord $_ } } } # Set the location where to save the diskpart command $diskpartScriptFile = Get-PSFConfigValue -FullName dbaclone.diskpart.scriptfile -Fallback "$env:APPDATA\dbaclone\diskpartcommand.txt" if (-not (Test-Path -Path $diskpartScriptFile)) { if ($PSCmdlet.ShouldProcess($diskpartScriptFile, "Creating dispart file")) { try { $null = New-Item -Path $diskpartScriptFile -ItemType File } catch { Stop-PSFFunction -Message "Could not create diskpart script file" -ErrorRecord $_ -Continue } } } } process { # Test if there are any errors if (Test-PSFFunctionInterrupt) { return } if ($PSCmdlet.ShouldProcess($vhdPath, "Creating VHD")) { # Check if the file needs to have a fixed size try { if ($FixedSize) { $command = "create vdisk file='$vhdPath' maximum=$Size type=fixed" } else { $command = "create vdisk file='$vhdPath' maximum=$Size type=expandable" } # Set the content of the diskpart script file Set-Content -Path $diskpartScriptFile -Value $command -Force $script = [ScriptBlock]::Create("diskpart /s $diskpartScriptFile") $null = Invoke-PSFCommand -ScriptBlock $script } catch { Stop-PSFFunction -Message "Something went wrong creating the vhd" -ErrorRecord $_ -Continue } } } end { # Clean up the script file for diskpart Remove-Item $diskpartScriptFile -Force -Confirm:$false # Test if there are any errors if (Test-PSFFunctionInterrupt) { return } Write-PSFMessage "Finished creating vhd file" -Level Verbose } } |