OVSS.ps1
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<#PSScriptInfo .VERSION 3.6 .GUID ced41cc3-0763-4229-be97-4aac877c39e2 .AUTHOR Jonathan E. Brickman .COMPANYNAME Ponderworthy Music .COPYRIGHT (c) 2018 Jonathan E. Brickman .TAGS .LICENSEURI https://opensource.org/licenses/BSD-3-Clause .PROJECTURI https://github.com/jebofponderworthy/windows-tools .ICONURI .EXTERNALMODULEDEPENDENCIES .REQUIREDSCRIPTS .EXTERNALSCRIPTDEPENDENCIES .RELEASENOTES OVSS Removes all orphan shadows, and then preallocates 20% of each drive volume for VSS as many different tools' docs advise. #> <# .DESCRIPTION OVSS - optimizes VSS preallocation to 20% for each NTFS volume, and clears orphan shadows #> Param() ################################# # Optimize VSS # ################################# # # by Jonathan E. Brickman # # Removes all orphan shadows, and then preallocates 20% # of each drive volume for VSS as many different tools' # docs advise. # # Copyright 2018 Jonathan E. Brickman # https://notes.ponderworthy.com/ # This script is licensed under the 3-Clause BSD License # https://opensource.org/licenses/BSD-3-Clause # and is reprised at the end of this file # "" "Optimize VSS" "" # Self-elevate if not already elevated. if (([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { "Running elevated; good." "" } else { "Not running as elevated. Starting elevated shell." Start-Process powershell -WorkingDirectory $PSScriptRoot -Verb runAs -ArgumentList "-noprofile -noexit -file $PSCommandPath" return "Done. This one will now exit." "" } # Remove orphan shadows. "Removing orphan shadows..." # Originally used the following: # # "" # Invoke-Expression -Command 'vssadmin delete shadows /all /quiet' # "" Get-CimInstance -ClassName Win32_shadowcopy | Remove-CimInstance # Get list of VSS-related volumes, and run the appropriate command on each. # This includes all volumes which are VSS-aware, whether or not they have # drive letters. "Set preallocation for all NTFS volumes..." $VSSVolumesData = (vssadmin list volumes) ForEach ($DataLine in $VSSVolumesData) { If ((-join $DataLine[0..12]) -eq "Volume path: ") { $VolumeID = (-join $DataLine[13..60]) "Setting VSS preallocation to 20% for: " + $VolumeID "" If (((Get-CimInstance Win32_OperatingSystem).Caption) -match "Server") { Invoke-Expression -Command ('vssadmin add shadowstorage /For="' + $VolumeID + '" /On="' + $VolumeID + '" /MaxSize=20%') Invoke-Expression -Command ('vssadmin resize shadowstorage /For="' + $VolumeID + '" /On="' + $VolumeID + '" /MaxSize=20%') } Else { Invoke-Expression -Command ('vssadmin resize shadowstorage /For="' + $VolumeID + '" /On="' + $VolumeID + '" /MaxSize=20%') } "" } } |