functions/Get-DbaDatabaseFreespace.ps1
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function Get-DbaDatabaseFreespace { <# .SYNOPSIS Returns database file space information for database files on a SQL instance. .DESCRIPTION This function returns database file space information for a SQL Instance or group of SQL Instances. Information is based on a query against sys.database_files and the FILEPROPERTY function to query and return information. The function can accept a single instance or multiple instances. By default, only user dbs will be shown, but using the IncludeSystemDBs switch will include system databases .NOTES Original Author: Michael Fal (@Mike_Fal), http://mikefal.net File free space script borrowed and modified from Glenn Berry's DMV scripts (http://www.sqlskills.com/blogs/glenn/category/dmv-queries/) dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com) Copyright (C) 2016 Chrissy LeMaire This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. .PARAMETER SqlServer SQLServer name or SMO object representing the SQL Server to connect to. This can be a collection and recieve pipeline input .PARAMETER SqlCredential PSCredential object to connect under. If not specified, currend Windows login will be used. .PARAMETER IncludeSystemDBs Switch parameter that when used will display system database information .PARAMETER Databases Specify one or more databases to process. .PARAMETER Exclude Specify one or more databases to exclude. .LINK https://dbatools.io/Get-DbaDatabaseFreespace .EXAMPLE Get-DbaDatabaseFreespace -SqlServer localhost Returns all user database files and free space information for the local host .EXAMPLE Get-DbaDatabaseFreespace -SqlServer localhost | Where-Object {$_.PercentUsed -gt 80} Returns all user database files and free space information for the local host. Filters the output object by any files that have a percent used of greater than 80%. .EXAMPLE @('localhost','localhost\namedinstance') | Get-DbaDatabaseFreespace Returns all user database files and free space information for the localhost and localhost\namedinstance SQL Server instances. Processes data via the pipeline. .EXAMPLE Get-DbaDatabaseFreespace -SqlServer localhost -Databases db1, db2 Returns database files and free space information for the db1 and db2 on localhost. #> [CmdletBinding()] param ([parameter(ValueFromPipeline, Mandatory = $true)] [Alias("ServerInstance", "SqlInstance")] [object[]]$SqlServer, [System.Management.Automation.PSCredential]$SqlCredential, [switch]$IncludeSystemDBs) DynamicParam { if ($SqlServer) { return Get-ParamSqlDatabases -SqlServer $SqlServer[0] -SqlCredential $SourceSqlCredential } } BEGIN { $outputraw = @() $sql = "SELECT @@SERVERNAME as SqlServer ,DB_NAME() as DBName ,f.name AS [FileName] ,fg.name AS [Filegroup] ,f.physical_name AS [PhysicalName] ,CAST(CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) as [UsedSpaceMB] ,CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) AS [FreeSpaceMB] ,CAST((f.size/128.0) AS DECIMAL(15,2)) AS [FileSizeMB] ,CAST((FILEPROPERTY(f.name, 'SpaceUsed')/(f.size/1.0)) * 100 as DECIMAL(15,2)) as [PercentUsed] ,CAST((f.growth/128.0) AS DECIMAL(15,2)) AS [GrowthMB] ,CASE is_percent_growth WHEN 1 THEN 'pct' WHEN 0 THEN 'MB' ELSE 'Unknown' END AS [GrowthType] ,CASE f.max_size WHEN -1 THEN 2147483648. ELSE CAST((f.max_size/128.0) AS DECIMAL(15,2)) END AS [MaxSizeMB] ,CAST((f.size/128.0) AS DECIMAL(15,2)) - CAST(CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) AS [SpaceBeforeAutoGrow] ,CASE f.max_size WHEN (-1) THEN CAST(((2147483648.) - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int))/128.0 AS DECIMAL(15,2)) ELSE CAST((f.max_size - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int))/128.0 AS DECIMAL(15,2)) END AS [SpaceBeforeMax] ,CASE f.growth WHEN 0 THEN 0.00 ELSE CASE f.is_percent_growth WHEN 0 THEN CASE f.max_size WHEN (-1) THEN CAST(((((2147483648.)-f.Size)/f.Growth)*f.Growth)/128.0 AS DECIMAL(15,2)) ELSE CAST((((f.max_size-f.Size)/f.Growth)*f.Growth)/128.0 AS DECIMAL(15,2)) END WHEN 1 THEN CASE f.max_size WHEN (-1) THEN CAST(CONVERT([int],f.Size*power((1)+CONVERT([float],f.Growth)/(100),CONVERT([int],log10(CONVERT([float],(2147483648.))/CONVERT([float],f.Size))/log10((1)+CONVERT([float],f.Growth)/(100)))))/128.0 AS DECIMAL(15,2)) ELSE CAST(CONVERT([int],f.Size*power((1)+CONVERT([float],f.Growth)/(100),CONVERT([int],log10(CONVERT([float],f.Max_Size)/CONVERT([float],f.Size))/log10((1)+CONVERT([float],f.Growth)/(100)))))/128.0 AS DECIMAL(15,2)) END ELSE (0) END END AS [PossibleAutoGrowthMB] , CASE f.growth WHEN 0 THEN CASE f.max_size WHEN (-1) THEN CAST(((2147483648.) - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int))/128.0 AS DECIMAL(15,2)) ELSE CAST((f.max_size - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int))/128.0 AS DECIMAL(15,2)) END ELSE CAST((f.max_size - f.size - ( CASE f.is_percent_growth WHEN 0 THEN CASE f.max_size WHEN (-1) THEN ((((2147483648.)-f.Size)/f.Growth)*f.Growth) ELSE (((f.max_size-f.Size)/f.Growth)*f.Growth) END WHEN 1 THEN CASE f.max_size WHEN (-1) THEN CONVERT([int],f.Size*power((1)+CONVERT([float],f.Growth)/(100),CONVERT([int],log10(CONVERT([float],(2147483648.))/CONVERT([float],f.Size))/log10((1)+CONVERT([float],f.Growth)/(100))))) ELSE CONVERT([int],f.Size*power((1)+CONVERT([float],f.Growth)/(100),CONVERT([int],log10(CONVERT([float],f.Max_Size)/CONVERT([float],f.Size))/log10((1)+CONVERT([float],f.Growth)/(100))))) END ELSE (0) END ))/128.0 AS DECIMAL(15,2)) END AS [UnusableSpaceMB] FROM sys.database_files AS f WITH (NOLOCK) LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) ON f.data_space_id = fg.data_space_id" $databases = $psboundparameters.Databases $exclude = $psboundparameters.Exclude } PROCESS { foreach ($s in $SqlServer) { #For each SQL Server in collection, connect and get SMO object Write-Verbose "Connecting to $s" $server = Connect-SqlServer $s -SqlCredential $SqlCredential #If IncludeSystemDBs is true, include systemdbs #only look at online databases (Status equal normal) try { if ($databases.length -gt 0) { $dbs = $server.Databases | Where-Object { $databases -contains $_.Name } } elseif ($IncludeSystemDBs) { $dbs = $server.Databases | Where-Object { $_.status -eq 'Normal' } } else { $dbs = $server.Databases | Where-Object { $_.status -eq 'Normal' -and $_.IsSystemObject -eq 0 } } if ($exclude.length -gt 0) { $dbs = $dbs | Where-Object { $exclude -notcontains $_.Name } } } catch { Write-Exception $_ throw "Unable to gather dbs for $($s.name)" continue } foreach ($db in $dbs) { try { Write-Verbose "Querying $($s) - $($db.name)." #Execute query against individual database and add to output $outputraw += ($db.ExecuteWithResults($sql)).Tables[0] } catch { Write-Exception $_ throw "Unable to query $($s) - $($db.name)" continue } } } } END { #Sanitize output into array of custom objects, not DataRow objects Write-Verbose 'Sanitizing output, converting DataRow to custom PSObject.' $output = @() foreach ($row in $outputraw) { $outrow = [ordered]@{ 'SqlServer' = $row.SqlServer;` 'DatabaseName' = $row.DBName;` 'FileName' = $row.FileName;` 'FileGroup' = $row.FileGroup;` 'PhysicalName' = $row.PhysicalName;` 'UsedSpaceMB' = $row.UsedSpaceMB;` 'FreeSpaceMB' = $row.FreeSpaceMB;` 'FileSizeMB' = $row.FileSizeMB;` 'PercentUsed' = $row.PercentUSed;` 'AutoGrowth' = $row.GrowthMB;` 'AutoGrowType' = $row.GrowthType;` 'SpaceUntilMaxSizeMB' = $row.SpaceBeforeMax;` 'AutoGrowthPossibleMB' = $row.PossibleAutoGrowthMB;` 'UnusableSpaceMB' = $row.UnusableSpaceMB } $output += New-Object psobject -Property $outrow } return $output } } |