バックアップ用スクリプトを Management に追加

Management Tools/データベースバックアップ/Backup-Database.ps1

@@ -0,0 +1,254 @@
+<#
+.SYNOPSIS
+SQL Server Backup Database / Log Script
+
+.DESCRIPTION
+SQL Server のデータベース / トランザクションログのバックアップを取得します。
+開発環境 : 
+Windows Server 2016 + Windows PowerShell (5.1)
+Ubuntu 16.04 + PowerShell Core  (6.1.0-preview.2)
+
+.EXAMPLE
+./Backup-Database.ps1 -ServerInstance <SQL Server 名> -Username <SQL Login> -P <Login Password> -RunSpaceSize 5
+
+.LINK
+- PowerShell による同期処理、非同期処理、並列処理 を考えてみる 
+http://tech.guitarrapc.com/entry/2013/10/29/100946
+
+- RunspacePoolを使って、PowerShellを非同期実行
+https://www.gmo.jp/report/single/?art_id=195
+
+- Weekend Scripter: Max Out PowerShell in a Little Bit of Time—Part 2
+https://blogs.technet.microsoft.com/heyscriptingguy/2013/09/29/weekend-scripter-max-out-powershell-in-a-little-bit-of-timepart-2/
+
+- Beginning Use of PowerShell Runspaces: Part 1
+https://blogs.technet.microsoft.com/heyscriptingguy/2015/11/26/beginning-use-of-powershell-runspaces-part-1/
+#>
+
+[CmdletBinding()]
+Param(
+    [int]$CommandTimeout = 600,
+    [int]$ConnectionTimeout = 15,
+    [int]$RunspaceSize = 2,
+    [Parameter(Mandatory=$True)]
+    [string]$ServerInstance,
+    [Parameter(Mandatory=$True)]
+    [string]$Username,
+    [Parameter(Mandatory=$True)]
+    [string]$Password,
+    [string]$BackupPath = ".",
+    [switch]$Log
+)
+
+
+##### Function definition ####
+function Out-Message([string]$Msg){
+    Write-Host ("[{0}] $Msg" -f (Get-Date).ToString("yyyy/MM/dd HH:mm:ss.fff"),  $Msg)
+}
+############################
+
+$ErrorActionPreference = "Stop"
+
+$success = 0
+$failed = 0
+
+$TargetDatabaseQuery = @"
+USE [master];
+SET NOCOUNT ON;
+SELECT
+	name,
+	create_date,
+	recovery_model,
+	recovery_model_desc,
+	D AS full_backup_finish_date,
+	I AS diff_backup_finish_date,
+	L AS log_backup_finish_date
+FROM
+(
+SELECT
+	d.database_id,
+	d.name,
+	d.create_date,
+	d.recovery_model,
+	d.recovery_model_desc,
+	backup_tbl.type,
+	backup_tbl.backup_finish_date
+FROM 
+	sys.databases AS d
+	LEFT JOIN
+	(SELECT 
+		database_name, 
+		type, 
+		MAX(backup_finish_date) AS backup_finish_date
+		FROM
+		msdb.dbo.backupset 
+		GROUP BY 
+		database_name, 
+		type
+	) AS backup_tbl
+	ON
+		d.name = backup_tbl.database_name
+) AS T
+PIVOT
+(
+	MAX(backup_finish_date)
+	FOR type IN(D, I, L)
+)AS PVT
+ORDER BY 
+	database_id ASC
+"@
+Out-Message -Msg ("=" * 20)
+Out-Message "Script Settings:"
+Out-Message ("Connection Timeout:[{0}] / Command Timeout:[{1}] / Runspace Size:[{2}]" -f $ConnectionTimeout, $CommandTimeout, $RunspaceSize)
+Out-Message -Msg ("=" * 20)
+Out-Message "Backup $(if($Log){"Log "}else{"Database "})start."
+
+$sw = [system.diagnostics.stopwatch]::startNew()
+
+$constring = New-Object System.Data.SqlClient.SqlConnectionStringBuilder
+$constring.psbase.DataSource = $ServerInstance
+$constring.psbase.InitialCatalog = "master"
+$constring.psbase.UserID = $Username
+$constring.psbase.Password = $Password
+$constring.psbase.ConnectTimeout = $ConnectionTimeout
+
+$con = New-Object System.Data.SqlClient.SqlConnection
+
+$con.ConnectionString = $constring
+
+$con.Open()
+
+$cmd = $con.CreateCommand()
+$cmd.CommandText = $TargetDatabaseQuery
+
+
+$da = New-Object System.Data.SqlClient.SqlDataAdapter
+$da.SelectCommand = $cmd
+
+$ds = New-Object System.Data.DataSet
+
+[void]$da.Fill($ds)
+
+$con.Close()
+$con.Dispose()
+
+try{
+    $minpoolsize = $maxpoolsize = $RunspaceSize
+    $runspacePool = [runspacefactory]::CreateRunspacePool($minPoolSize, $maxPoolSize)
+    # Linux の PowerShell Core では、ApartmentState の設定ができなかったため、Windows PowerShell を対象に STA 設定
+    if($PSVersionTable.PSEdition -eq "Desktop"){
+        $runspacePool.ApartmentState = "STA"
+    }
+    $runspacePool.Open()
+
+    $Command = {
+        Param(
+            [string]$constring,
+            [string]$dbname,
+            [string]$backupsql,
+            [int]$CommandTimeout
+        )
+        try{
+            $orgErrorActionPreference = $ErrorActionPreference
+            $ErrorActionPreference = "SilentlyContinue"
+            $con = New-Object System.Data.SqlClient.SqlConnection
+            $con.ConnectionString = $constring
+
+            $con.Open()
+            $cmd = $con.CreateCommand()
+            $cmd.CommandTimeout = $CommandTimeout
+
+            $cmd.CommandText = $backupsql
+
+            [void]$cmd.ExecuteNonQuery()
+
+            $cmd.Dispose()
+
+            $con.Close()
+            $con.Dispose()
+            Write-Output ("Backup Success [{0}] " -f $dbname)
+        }catch{
+            return $Error[0]
+        }finally{
+            $ErrorActionPreference = $orgErrorActionPreference
+        }
+    }
+    $RunspaceCollection  = New-Object System.Collections.ArrayList
+    $Result = New-Object System.Collections.ArrayList
+
+    foreach ($row in $ds.Tables[0].Rows){
+        # tempdb はバックアップが取得できないため処理対象外とする
+        if ($row["name"] -notcontains ("tempdb")){
+            # Transaction Log Backup
+            if ($Log){
+                $backupfile = Join-Path -Path $BackupPath -ChildPath (($row["name"] + "_" + (Get-Date).ToString("yyyyMMdd")) + ".trn")
+                $backupfile = $backupfile -replace "\\" , "/"
+                $backupsql = "BACKUP LOG {0} TO DISK=N'{1}' WITH COMPRESSION, STATS=5" -f $row["name"], $backupfile
+            # Database Full Backup
+            }else{
+                $backupfile = Join-Path -Path $BackupPath -ChildPath (($row["name"] + "_" + (Get-Date).ToString("yyyyMMdd")) + ".bak")
+                $backupfile = $backupfile -replace "\\" , "/"
+                $backupsql = "BACKUP DATABASE {0} TO DISK=N'{1}' WITH COMPRESSION, STATS=5" -f $row["name"], $backupfile
+            }
+
+            # 単純復旧 / 初回完全バックアップが取得されていない場合、ログバックアップはスキップ
+            if (!(($row.recovery_model -eq 3 -or [String]::IsNullOrEmpty($row.full_backup_finish_date)) -and $Log)){
+                $powershell = [PowerShell]::Create().AddScript($Command).AddArgument($constring.ConnectionString).AddArgument($row["name"]).AddArgument($backupsql).AddArgument($CommandTimeout)
+                $powershell.RunspacePool = $runspacePool
+                Out-Message -Msg ("Available Runspaces in RunspacePool: [{0}]" -f $RunspacePool.GetAvailableRunspaces())
+                [void]$RunspaceCollection.Add([PSCustomObject] @{
+                    Runspace = $powershell.BeginInvoke();
+                    PowerShell = $powershell
+                    DBName = $row["name"]
+                    BackupFile = $backupfile
+                    StartTime = Get-Date
+                })
+                Out-Message -Msg ("[{0}] Backup waiting." -f $row["name"])
+            }
+        }
+    }
+
+    # 処理完了の待機
+    while($RunspaceCollection){
+        foreach($runspace in $RunspaceCollection){
+            if ($runspace.Runspace.IsCompleted){
+                $ret = $runspace.powershell.EndInvoke($runspace.Runspace)
+                $runspace.PowerShell.Dispose()
+
+                if (($ret | Get-Member).TypeName[0] -eq [System.Management.Automation.ErrorRecord]){
+                    Out-Message -Msg ("[{0}] Backup failed : {1} (Start:[{2}] / End:[{3}])" -f $runspace.DBName, $ret.Exception.Message, $runspace.StartTime, (Get-Date))
+                    $failed +=1
+                }else{
+                    Out-Message -Msg ("[{0}] Backup completed (File:[{1}] / Start:[{2}] / End:[{3}])" -f $runspace.DBName, $runspace.BackupFile, $runspace.StartTime, (Get-Date))
+                    $success +=1
+                }
+                [void]$Result.Add($ret)
+                $RunspaceCollection.Remove($runspace)
+                break
+            }
+        }
+        Start-Sleep -Milliseconds 100
+    }
+
+}catch{
+  Write-Output $Error[0]
+}finally{
+    if ($runspacePool -ne $null){
+        $runspacePool.Close()
+        $runspacePool.Dispose()
+    }
+}
+
+$ds.Dispose()
+$da.Dispose()
+
+$con.Close()
+$con.Dispose()
+
+$sw.Stop()
+
+Out-Message -Msg ("Backup $(if($Log){"Log "}else{"Database "})End.")
+Out-Message -Msg ("=" * 20)
+Out-Message -Msg ("Total execution time (sec) : [{0}]" -f $sw.Elapsed.TotalSeconds)
+Out-Message -Msg ("[Result] Success : [{0}] / Failed : [{1}]" -f $success, $failed)
+Out-Message -Msg ("=" * 20)