☰

触发 Powershell 命令将 SQL 备份复制到网络驱动器

tag-icon • tag-icon backup sql-server-2008 powershell
触发 Powershell 命令将 SQL 备份复制到网络驱动器

我在工作组中有两台服务器，我需要将 SQL Server 2008 备份从一台服务器的本地驱动器传输到另一台服务器的网络驱动器。理想情况下，我希望 SQL 在备份后调用 Powershell 脚本。有人有可以执行此操作的脚本吗？有更好的方法吗？

我尝试将 SQL 备份直接复制到网络驱动器，但如果它们不在同一个域中，似乎无法做到这一点。

答案1

Powershell 当然可以做到这一点，但我发现 ROBOCOPY 更容易，只需在 SQL 服务器上创建维护清理计划后使用 /MIR 选项自动清除旧备份，即可摆脱超过 X 天的备份，并且您将始终在网络驱动器上保留副本；

您可以将副本设置为 Windows 计划任务，或者通过操作系统命令设置为 SQL 代理任务。

答案2

我为自己编写了这个脚本。它使用我自己熟悉的文件名格式将备份直接创建到网络共享中。它从 Windows 调度程序执行。

function Backup-Database {
    [CmdletBinding()]
    param(
        $Server,
        [String[]]$Database,
        [String]$Path,
        [Switch]$CreateSubfolder,
        [Switch]$Check,
        [Switch]$CopyOnly,
        [Switch]$BackupDatabase = $true,
        [Switch]$BackupTransactionLog,
        [Switch]$NoInnerVerbose,
        [Switch]$Differential
    )

    begin {
        $AllDatabases = @()
    }
    process {
        #All database names into 1 list
        $AllDatabases += $Database
    }
    end {
        $DefaultProgressPreference = $ProgressPreference
        if (-not $Path.EndsWith('\')) {
            $Path = $Path + '\'
        }
        #$Differential = $false
        $RetainDays = 0
        if ($Differential) {
            $RetainDays = 31
        }
        if ($NoInnerVerbose) {
            $Verbose = $false
        }
        else {
            $Verbose = ($VerbosePreference -eq 'Continue')
        }

        Import-Module SQLPS -Verbose:$false -WarningAction SilentlyContinue
        $Activity = "Backing up databases"

        # Some cmdlets cannot specify timeouts, this is workout
        Write-Verbose "Connecting to $Server"
        Write-Progress -Activity $Activity -CurrentOperation "Connecting to $Server"
        $ServerInstance = New-Object Microsoft.SqlServer.Management.Smo.Server $Server
        $ServerInstance.ConnectionContext.StatementTimeout = 0

        for ($index = 0; $index -lt $AllDatabases.Count; $index++) {
            $TotalProgress = $index / $AllDatabases.Count * 100
            $DB = $AllDatabases[$index]
            $DBTitle = [Char]::ToUpperInvariant($DB[0]) + $DB.Substring(1)
            $Operation = "Backing up $DBTitle database"
            #Write-Verbose $Operation

            if ($Check) {
                Write-Progress -Activity $Activity -CurrentOperation $Operation -Status 'Checking database integrity' -PercentComplete $TotalProgress
                Write-Verbose "Checking $DB database integrity"
                Invoke-Sqlcmd -ServerInstance $ServerInstance -Database $DB -Query 'DBCC CHECKDB($(dbname))' -Variable "dbname='$DB'" -Verbose:$Verbose -QueryTimeout 65535
            }

            if ($BackupTransactionLog) {
                Write-Progress -Activity $Activity -CurrentOperation $Operation -Status 'Backing up transaction log' -PercentComplete $TotalProgress
                $FileName = $Path
                if ($CreateSubfolder) {
                    $FileName = Join-Path $FileName $DBTitle
                    if (-not (Test-Path $FileName)) {
                        Push-Location
                        New-Item $FileName -ItemType Container -Force | Out-Null
                        Pop-Location
                    }
                }
                $FileName = Join-Path $FileName "$($DBTitle)_$(Get-Date -format 'yyyy-MM-dd_HH-mm')_log.trn"

                Write-Verbose "Backing up transaction log to $FileName"
                $ProgressPreference = 'SilentlyContinue'
                Backup-SqlDatabase -Database $DB -BackupFile $FileName -InputObject $ServerInstance -BackupAction Log -Checksum:$Check -CompressionOption On -CopyOnly:$CopyOnly -RetainDays $RetainDays -LogTruncationType Truncate -Verbose:$Verbose
                $ProgressPreference = $DefaultProgressPreference

                if ($Check) {
                    Write-Progress -Activity $Activity -CurrentOperation $Operation -Status 'Checking transaction log backup integrity' -PercentComplete $TotalProgress
                    $FileNumber = Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'select position from msdb..backupset where database_name=$(dbname) and backup_set_id=(select max(backup_set_id) from msdb..backupset where database_name=$(dbname))' -Variable "dbname='$DB'" -Verbose:$Verbose | select -ExpandProperty position
                    $Position = Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'RESTORE HEADERONLY FROM DISK=$(filename)' -Variable "filename='$FileName'" -Verbose:$Verbose | select -Last 1 -ExpandProperty Position
                    if ($FileNumber -ne $null -and $FileNumber -eq $Position) {
                        Write-Verbose "Verifying backup file '$FileName', position $FileNumber"
                        Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'RESTORE VERIFYONLY FROM DISK=$(filename) WITH FILE=$(position)' -Variable "filename='$FileName'","position=$FileNumber" -QueryTimeout 65535 -Verbose:$Verbose
                    }
                    else {
                        Write-Error "Transaction log verify failed. Backup information for database $DB not found or incorrect (query position $FileNumber, file position $Position)" -Category InvalidResult
                    }
                }
            }

            if ($BackupDatabase) {
                Write-Progress -Activity $Activity -CurrentOperation $Operation -Status 'Backing up database' -PercentComplete $TotalProgress
                $FileName = $Path
                if ($CreateSubfolder) {
                    $FileName = Join-Path $FileName $DBTitle
                    if (-not (Test-Path $FileName)) {
                        Push-Location
                        New-Item $FileName -ItemType Container -Force | Out-Null
                        Pop-Location
                    }
                }
                if ($Differential) {
                    $part = 'diff'
                }
                else {
                    $part = 'full'
                }
                $FileName = Join-Path $FileName "$($DBTitle)_$(Get-Date -format 'yyyy-MM-dd_HH-mm')_$part.bak"

                Write-Verbose "Backing up $DB database to $FileName"
                $ProgressPreference = 'SilentlyContinue'
                Backup-SqlDatabase -Database $DB -BackupFile $FileName -InputObject $ServerInstance -BackupAction Database -Checksum:$Check -CompressionOption On -Incremental:$Differential -CopyOnly:$CopyOnly -RetainDays $RetainDays -Verbose:$Verbose
                $ProgressPreference = $DefaultProgressPreference
                #Backing up (Database: 'accounting' ; Server: 'Serv1C' ; Action = 'Database') .

                if ($Check) {
                    Write-Progress -Activity $Activity -CurrentOperation $Operation -Status 'Checking database backup integrity' -PercentComplete $TotalProgress
                    $FileNumber = Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'select position from msdb..backupset where database_name=$(dbname) and backup_set_id=(select max(backup_set_id) from msdb..backupset where database_name=$(dbname))' -Variable "dbname='$DB'" -Verbose:$Verbose | select -ExpandProperty position
                    $Position = Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'RESTORE HEADERONLY FROM DISK=$(filename)' -Variable "filename='$FileName'" -Verbose:$Verbose | select -Last 1 -ExpandProperty Position
                    if ($FileNumber -ne $null -and $FileNumber -eq $Position) {
                        Write-Verbose "Verifying backup file '$FileName', position $FileNumber"
                        Invoke-Sqlcmd -ServerInstance $ServerInstance -Query 'RESTORE VERIFYONLY FROM DISK=$(filename) WITH FILE=$(position)' -Variable "filename='$FileName'","position=$FileNumber" -QueryTimeout 65535 -Verbose:$Verbose
                    }
                    else {
                        Write-Error "Database backup verify failed. Backup information for database $DB not found or incorrect (query position $FileNumber, file position $Position)" -Category InvalidResult
                    }
                }
            }
        }
        Write-Progress -Activity $Activity -Completed
    }
}

$Server = 'Serv1C'
$Databases = 'accounting3','zup','accounting','pult','accounting_ip','accounting_u','accounting_u2'
$Differential = $true
$TransactionLog = $true
$Check = $false
$BackupPath = '\\MAIN\Backup\SQL'
Backup-Database -Server $Server -Database $Databases -Path $BackupPath -CreateSubfolder -Verbose -NoInnerVerbose -Differential:$Differential -BackupTransactionLog:$TransactionLog -Check:$Check

答案3

我使用 Powershell 调用富文本复制。如果您使用 RAR 实用程序将大文件拆分成多个块，RichCopy 可以真正节省空间。

另一种方法是使用 PowerShell v2 BITS 模块，尽管我还没有尝试过。从“import-module filetransfer”和“get-help add-filetransfer –example”开始

至于 SQL 调用脚本，尝试让它明确调用所有内容：

％windir％\system32\windowspowershell\v1.0\powershell.exe -nologo -command“＆{C:\path\to\Script.ps1}”

相关内容