functions/Get-DbaMemoryUsage.ps1
|
#ValidationTags#Messaging,CodeStyle# function Get-DbaMemoryUsage { <# .SYNOPSIS Get amount of memory in use by *all* SQL Server components and instances .DESCRIPTION Retrieves the amount of memory per performance counter. Default output includes columns Server, counter instance, counter, number of pages, memory in KB, memory in MB SSAS and SSIS are included. SSRS does not have memory counters, only memory shrinks and memory pressure state. This function requires local admin role on the targeted computers. .PARAMETER ComputerName The Windows Server that you are connecting to. Note that this will return all instances, but Out-GridView makes it easy to filter to specific instances. .PARAMETER Credential Credential object used to connect to the SQL Server as a different user .PARAMETER Simple Shows concise information including Server name, Database name, and the date the last time backups were performed .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. .NOTES Tags: Memory Author: Klaas Vandenberghe ( @PowerDBAKlaas ) dbatools PowerShell module (https://dbatools.io) Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT SSIS Counters: https://msdn.microsoft.com/en-us/library/ms137622.aspx .LINK https://dbatools.io/Get-DbaMemoryUsage .EXAMPLE Get-DbaMemoryUsage -ComputerName ServerA Returns a custom object displaying Server, counter instance, counter, number of pages, memory in KB, memory in MB .EXAMPLE Get-DbaMemoryUsage -ComputerName ServerA\sql987 -Simple Returns a custom object with Server, counter instance, counter, number of pages, memory in KB, memory in MB .EXAMPLE Get-DbaMemoryUsage -ComputerName ServerA\sql987 | Out-Gridview Returns a gridview displaying Server, counter instance, counter, number of pages, memory in KB, memory in MB #> [CmdletBinding()] param ( [parameter(ValueFromPipeline)] [Alias("Host", "cn", "Server")] [DbaInstanceParameter[]]$ComputerName = $env:COMPUTERNAME, [PSCredential]$Credential, [switch]$Simple, [Alias('Silent')] [switch]$EnableException ) begin { if ($Simple) { $Memcounters = '(Total Server Memory |Target Server Memory |Connection Memory |Lock Memory |SQL Cache Memory |Optimizer Memory |Granted Workspace Memory |Cursor memory usage|Maximum Workspace)' $Plancounters = 'total\)\\cache pages' $BufManpagecounters = 'Total pages' $SSAScounters = '(\\memory usage)' $SSIScounters = '(memory)' } else { $Memcounters = '(Total Server Memory |Target Server Memory |Connection Memory |Lock Memory |SQL Cache Memory |Optimizer Memory |Granted Workspace Memory |Cursor memory usage|Maximum Workspace)' $Plancounters = '(cache pages|procedure plan|ad hoc sql plan|prepared SQL Plan)' $BufManpagecounters = '(Free pages|Reserved pages|Stolen pages|Total pages|Database pages|target pages|extension .* pages)' $SSAScounters = '(\\memory )' $SSIScounters = '(memory)' } $scriptblock = { param ($Memcounters, $Plancounters, $BufManpagecounters, $SSAScounters, $SSIScounters) Write-Verbose "Searching for Memory Manager Counters on $Computer" try { $availablecounters = (Get-Counter -ListSet '*sql*:Memory Manager*' -ErrorAction SilentlyContinue).paths (Get-Counter -Counter $availablecounters -ErrorAction SilentlyContinue).countersamples | Where-Object { $_.Path -match $Memcounters } | ForEach-Object { $instance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[0] if ($instance -eq 'sqlserver') { $instance = 'mssqlserver' } [PSCustomObject]@{ ComputerName = $env:computername SqlInstance = $instance CounterInstance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[1] Counter = $_.Path.split("\")[-1] Pages = $null MemKB = $_.cookedvalue MemMB = $_.cookedvalue / 1024 } } } catch { Write-Verbose "No Memory Manager Counters on $Computer" } Write-Verbose "Searching for Plan Cache Counters on $Computer" try { $availablecounters = (Get-Counter -ListSet '*sql*:Plan Cache*' -ErrorAction SilentlyContinue).paths (Get-Counter -Counter $availablecounters -ErrorAction SilentlyContinue).countersamples | Where-Object { $_.Path -match $Plancounters } | ForEach-Object { $instance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[0] if ($instance -eq 'sqlserver') { $instance = 'mssqlserver' } [PSCustomObject]@{ ComputerName = $env:computername SqlInstance = $instance CounterInstance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[1] Counter = $_.Path.split("\")[-1] Pages = $_.cookedvalue MemKB = $_.cookedvalue * 8192 / 1024 MemMB = $_.cookedvalue * 8192 / 1048576 } } } catch { Write-Verbose "No Plan Cache Counters on $Computer" } Write-Verbose "Searching for Buffer Manager Counters on $Computer" try { $availablecounters = (Get-Counter -ListSet "*Buffer Manager*" -ErrorAction SilentlyContinue).paths (Get-Counter -Counter $availablecounters -ErrorAction SilentlyContinue).countersamples | Where-Object { $_.Path -match $BufManpagecounters } | ForEach-Object { $instance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[0] if ($instance -eq 'sqlserver') { $instance = 'mssqlserver' } [PSCustomObject]@{ ComputerName = $env:computername SqlInstance = $instance CounterInstance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[1] Counter = $_.Path.split("\")[-1] Pages = $_.cookedvalue MemKB = $_.cookedvalue * 8192 / 1024.0 MemMB = $_.cookedvalue * 8192 / 1048576.0 } } } catch { Write-Verbose "No Buffer Manager Counters on $Computer" } Write-Verbose "Searching for SSAS Counters on $Computer" try { $availablecounters = (Get-Counter -ListSet "MSAS*:Memory" -ErrorAction SilentlyContinue).paths (Get-Counter -Counter $availablecounters -ErrorAction SilentlyContinue).countersamples | Where-Object { $_.Path -match $SSAScounters } | ForEach-Object { $instance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[0] if ($instance -eq 'sqlserver') { $instance = 'mssqlserver' } [PSCustomObject]@{ ComputerName = $env:COMPUTERNAME SqlInstance = $instance CounterInstance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[1] Counter = $_.Path.split("\")[-1] Pages = $null MemKB = $_.cookedvalue MemMB = $_.cookedvalue / 1024 } } } catch { Write-Verbose "No SSAS Counters on $Computer" } Write-Verbose "Searching for SSIS Counters on $Computer" try { $availablecounters = (Get-Counter -ListSet "*SSIS*" -ErrorAction SilentlyContinue).paths (Get-Counter -Counter $availablecounters -ErrorAction SilentlyContinue).countersamples | Where-Object { $_.Path -match $SSIScounters } | ForEach-Object { $instance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[0] if ($instance -eq 'sqlserver') { $instance = 'mssqlserver' } [PSCustomObject]@{ ComputerName = $env:computername SqlInstance = $instance CounterInstance = (($_.Path.split("\")[-2]).replace("mssql`$", "")).split(':')[1] Counter = $_.Path.split("\")[-1] Pages = $null MemKB = $_.cookedvalue / 1024 MemMB = $_.cookedvalue / 1024 / 1024 } } } catch { Write-Verbose "No SSIS Counters on $Computer" } } } process { foreach ($Computer in $ComputerName.ComputerName) { $reply = Resolve-DbaNetworkName -ComputerName $computer -Credential $Credential -ErrorAction SilentlyContinue if ($reply.FullComputerName) { $Computer = $reply.FullComputerName try { Write-Message -Level Verbose -Message "Connecting to $Computer" Invoke-Command2 -ComputerName $Computer -Credential $Credential -ScriptBlock $scriptblock -argumentlist $Memcounters, $Plancounters, $BufManpagecounters, $SSAScounters, $SSIScounters } catch { Stop-Function -Continue -Message "Failure" -ErrorRecord $_ -Target $computer -Continue } } else { Write-Message -Level Warning -Message "Can't resolve $Computer." Continue } } } } |