functions/Set-DbaPowerPlan.ps1
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function Set-DbaPowerPlan { <# .SYNOPSIS Sets the SQL Server OS's Power Plan. .DESCRIPTION Sets the SQL Server OS's Power Plan. Defaults to High Performance which is best practice. If your organization uses a custom power plan that is considered best practice, specify -CustomPowerPlan. References: https://support.microsoft.com/en-us/kb/2207548 http://www.sqlskills.com/blogs/glenn/windows-power-plan-effects-on-newer-intel-processors/ .PARAMETER ComputerName The server(s) to set the Power Plan on. .PARAMETER PowerPlan Specifies the Power Plan that you wish to use. Valid options for this match the Windows default Power Plans of "Power Saver", "Balanced", and "High Performance". .PARAMETER CustomPowerPlan Specifies the name of a custom Power Plan to use. .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 Requires: WMI access to servers dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com) Copyright (C) 2016 Chrissy LeMaire License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Set-DbaPowerPlan .EXAMPLE Set-DbaPowerPlan -ComputerName sqlserver2014a Sets the Power Plan to High Performance. Skips it if its already set. .EXAMPLE Set-DbaPowerPlan -ComputerName sqlcluster -CustomPowerPlan 'Maximum Performance' Sets the Power Plan to the custom power plan called "Maximum Performance". Skips it if its already set. #> [CmdletBinding(SupportsShouldProcess = $true)] param ( [parameter(Mandatory = $true, ValueFromPipeline = $true)] [Alias("ServerInstance", "SqlServer", "SqlInstance")] [object[]]$ComputerName, [ValidateSet('High Performance', 'Balanced', 'Power saver')] [string]$PowerPlan = 'High Performance', [string]$CustomPowerPlan, [switch][Alias('Silent')] $EnableException ) begin { if ($CustomPowerPlan.Length -gt 0) { $PowerPlan = $CustomPowerPlan } function Set-DbaPowerPlanInternal { param($server) try { Write-Message -Level Verbose -Message "Testing connection to $server and resolving IP address." $ipaddr = (Test-Connection $server -Count 1 -ErrorAction SilentlyContinue).Ipv4Address | Select-Object -First 1 } catch { Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $server return } try { Write-Message -Level Verbose -Message "Getting Power Plan information from $server." $query = "Select ElementName from Win32_PowerPlan WHERE IsActive = 'true'" $currentplan = Get-WmiObject -Namespace Root\CIMV2\Power -ComputerName $ipaddr -Query $query -ErrorAction SilentlyContinue $currentplan = $currentplan.ElementName } catch { Stop-Function -Message "Can't connect to WMI on $server." -Category ConnectionError -ErrorRecord $_ -Target $server return } if ($null -eq $currentplan) { # the try/catch above isn't working, so make it silent and handle it here. Stop-Function -Message "Cannot get Power Plan for $server." -Category ConnectionError -ErrorRecord $_ -Target $server return } $planinfo = [PSCustomObject]@{ Server = $server PreviousPowerPlan = $currentplan ActivePowerPlan = $PowerPlan } if ($PowerPlan -ne $currentplan) { if ($Pscmdlet.ShouldProcess($server, "Changing Power Plan from $CurrentPlan to $PowerPlan")) { try { Write-Message -Level Verbose -Message "Setting Power Plan to $PowerPlan." $null = (Get-WmiObject -Name root\cimv2\power -ComputerName $ipaddr -Class Win32_PowerPlan -Filter "ElementName='$PowerPlan'").Activate() } catch { Stop-Function -Message "Couldn't set Power Plan on $server." -Category ConnectionError -ErrorRecord $_ -Target $server return } } } else { if ($Pscmdlet.ShouldProcess($server, "Stating power plan is already set to $PowerPlan, won't change.")) { Write-Message -Level Verbose -Message "PowerPlan on $server is already set to $PowerPlan. Skipping." } } return $planinfo } $collection = New-Object System.Collections.ArrayList $processed = New-Object System.Collections.ArrayList } process { foreach ($server in $ComputerName) { if ($server -match 'Server\=') { Write-Message -Level Verbose -Message "Matched that value was piped from Test-DbaPowerPlan." # I couldn't properly unwrap the output from Test-DbaPowerPlan so here goes. $lol = $server.Split("\;")[0] $lol = $lol.TrimEnd("\}") $lol = $lol.TrimStart("\@\{Server") # There was some kind of parsing bug here, don't clown $server = $lol.TrimStart("\=") } if ($server -match '\\') { $server = $server.Split('\\')[0] } if ($server -notin $processed) { $null = $processed.Add($server) Write-Message -Level Verbose -Message "Connecting to $server." } else { continue } $data = Set-DbaPowerPlanInternal $server if ($data.Count -gt 1) { $data.GetEnumerator() | ForEach-Object { $null = $collection.Add($_) } } else { $null = $collection.Add($data) } } } end { If ($Pscmdlet.ShouldProcess("console", "Showing results")) { return $collection } } } |