functions/Backup-DbaDatabase.ps1
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 |
function Backup-DbaDatabase { <# .SYNOPSIS Backup one or more SQL Sever databases from a single SQL Server SqlInstance. .DESCRIPTION Performs a backup of a specified type of 1 or more databases on a single SQL Server Instance. These backups may be Full, Differential or Transaction log backups. .PARAMETER SqlInstance The SQL Server instance hosting the databases to be backed up. .PARAMETER SqlCredential Credentials to connect to the SQL Server instance if the calling user doesn't have permission. .PARAMETER Database The database(s) to process. This list is auto-populated from the server. If unspecified, all databases will be processed. .PARAMETER ExcludeDatabase The database(s) to exclude. This list is auto-populated from the server. .PARAMETER BackupFileName The name of the file to backup to. This is only accepted for single database backups. If no name is specified then the backup files will be named DatabaseName_yyyyMMddHHmm (i.e. "Database1_201714022131") with the appropriate extension. If the same name is used repeatedly, SQL Server will add backups to the same file at an incrementing position. SQL Server needs permissions to write to the specified location. Path names are based on the SQL Server (C:\ is the C drive on the SQL Server, not the machine running the script). .PARAMETER BackupDirectory Path in which to place the backup files. If not specified, the backups will be placed in the default backup location for SqlInstance. If multiple paths are specified, the backups will be striped across these locations. This will overwrite the FileCount option. If the path does not exist, Sql Server will attempt to create it. Folders are created by the Sql Instance, and checks will be made for write permissions. File Names with be suffixed with x-of-y to enable identifying striped sets, where y is the number of files in the set and x ranges from 1 to y. .PARAMETER CopyOnly If this switch is enabled, CopyOnly backups will be taken. By default function performs a normal backup, these backups interfere with the restore chain of the database. CopyOnly backups will not interfere with the restore chain of the database. For more details please refer to this MSDN article - https://msdn.microsoft.com/en-us/library/ms191495.aspx .PARAMETER Type The type of SQL Server backup to perform. Accepted values are "Full", "Log", "Differential", "Diff", "Database" .PARAMETER FileCount This is the number of striped copies of the backups you wish to create. This value is overwritten if you specify multiple Backup Directories. .PARAMETER CreateFolder If this switch is enabled, each database will be backed up into a separate folder on each of the paths specified by BackupDirectory. .PARAMETER CompressBackup If this switch is enabled, the function will try to perform a compressed backup if supported by the version and edition of SQL Server. Otherwise, this function will use the server's default setting for compression. .PARAMETER MaxTransferSize Sets the size of the unit of transfer. Values must be a multiple of 64kb. .PARAMETER Blocksize Specifies the block size to use. Must be one of 0.5KB, 1KB, 2KB, 4KB, 8KB, 16KB, 32KB or 64KB. This can be specified in bytes. Refer to https://msdn.microsoft.com/en-us/library/ms178615.aspx for more detail .PARAMETER BufferCount Number of I/O buffers to use to perform the operation. Refer to https://msdn.microsoft.com/en-us/library/ms178615.aspx for more detail .PARAMETER Checksum If this switch is enabled, the backup checksum will be calculated. .PARAMETER Verify If this switch is enabled, the backup will be verified by running a RESTORE VERIFYONLY against the SqlInstance .PARAMETER WithFormat Formats the media as the first step of the backup operation. NOTE: This will set Initialize and SkipTapeHeader to $true. .PARAMETER Initialize Initializes the media as part of the backup operation. .PARAMETER SkipTapeHeader Initializes the media as part of the backup operation. .PARAMETER InputObject Internal parameter .PARAMETER AzureBaseUrl The URL to the basecontainer of an Azure storage account to write backups to. If specified, the only other parameters than can be used are "NoCopyOnly", "Type", "CompressBackup", "Checksum", "Verify", "AzureCredential", "CreateFolder". .PARAMETER AzureCredential The name of the credential on the SQL instance that can write to the AzureBaseUrl. .PARAMETER NoRecovery This is passed in to perform a tail log backup if needed .PARAMETER BuildPath By default this command won't attempt to create missing paths, this switch will change the behavious so that it wll .PARAMETER IgnoreFileChecks This switch stops the function from checking for the validity of paths. This can be useful if SQL Server only has read access to the backup area. Note, that as we can't check the path you may well end up with errors. .PARAMETER OutputScriptOnly Switch causes only the T-SQL script for the backup to be generated. Will not create any paths if they do not exist .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 Tags: DisasterRecovery, Backup, Restore Author: Stuart Moore (@napalmgram), stuart-moore.com Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: MIT https://opensource.org/licenses/MIT .EXAMPLE Backup-DbaDatabase -SqlInstance Server1 -Database HR, Finance This will perform a full database backup on the databases HR and Finance on SQL Server Instance Server1 to Server1's default backup directory. .EXAMPLE Backup-DbaDatabase -SqlInstance sql2016 -BackupDirectory C:\temp -Database AdventureWorks2014 -Type Full Backs up AdventureWorks2014 to sql2016's C:\temp folder. .EXAMPLE Backup-DbaDatabase -SqlInstance sql2016 -AzureBaseUrl https://dbatoolsaz.blob.core.windows.net/azbackups/ -AzureCredential dbatoolscred -Type Full -CreateFolder Performs a full backup of all databases on the sql2016 instance to their own containers under the https://dbatoolsaz.blob.core.windows.net/azbackups/ container on Azure blog storage using the sql credential "dbatoolscred" registered on the sql2016 instance. #> [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess)] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword", "")] #For AzureCredential param ( [parameter(ParameterSetName = "Pipe", Mandatory = $true)] [DbaInstanceParameter]$SqlInstance, [PSCredential]$SqlCredential, [Alias("Databases")] [object[]]$Database, [object[]]$ExcludeDatabase, [string[]]$BackupDirectory, [string]$BackupFileName, [switch]$CopyOnly, [ValidateSet('Full', 'Log', 'Differential', 'Diff', 'Database')] [string]$Type = 'Database', [parameter(ParameterSetName = "NoPipe", Mandatory = $true, ValueFromPipeline = $true)] [object[]]$InputObject, [switch]$CreateFolder, [int]$FileCount = 0, [switch]$CompressBackup, [switch]$Checksum, [switch]$Verify, [int]$MaxTransferSize, [int]$BlockSize, [int]$BufferCount, [string]$AzureBaseUrl, [string]$AzureCredential, [switch]$NoRecovery, [switch]$BuildPath, [switch]$WithFormat, [switch]$Initialize, [switch]$SkipTapeHeader, [switch]$IgnoreFileChecks, [switch]$OutputScriptOnly, [Alias('Silent')] [switch]$EnableException ) begin { if ($SqlInstance.length -ne 0) { Write-Message -Level Verbose -Message "Connecting to $SqlInstance" try { $Server = Connect-SqlInstance -SqlInstance $SqlInstance -SqlCredential $SqlCredential -AzureUnsupported } catch { Stop-Function -Message "Cannot connect to $SqlInstance" -ErrorRecord $_ return } if ($Database) { $InputObject = $server.Databases | Where-Object Name -in $Database } else { $InputObject = $server.Databases | Where-Object Name -ne 'tempdb' } if ($ExcludeDatabase) { $InputObject = $InputObject | Where-Object Name -notin $ExcludeDatabase } if ($null -eq $BackupDirectory -and $backupfileName -ne 'NUL') { Write-Message -Message 'No backupfolder passed in, setting it to instance default' $BackupDirectory = (Get-DbaDefaultPath -SqlInstance $SqlInstance).Backup } if ($BackupDirectory.Count -gt 1) { Write-Message -Level Verbose -Message "Multiple Backup Directories, striping" $Filecount = $BackupDirectory.Count } if ($InputObject.Count -gt 1 -and $BackupFileName -ne '') { Stop-Function -Message "1 BackupFile specified, but more than 1 database." return } if (($MaxTransferSize % 64kb) -ne 0 -or $MaxTransferSize -gt 4mb) { Stop-Function -Message "MaxTransferSize value must be a multiple of 64kb and no greater than 4MB" return } if ($BlockSize) { if ($BlockSize -notin (0.5kb, 1kb, 2kb, 4kb, 8kb, 16kb, 32kb, 64kb)) { Stop-Function -Message "Block size must be one of 0.5kb,1kb,2kb,4kb,8kb,16kb,32kb,64kb" return } } if ('' -ne $AzureBaseUrl) { if ($null -eq $AzureCredential) { Stop-Function -Message "You must provide the credential name for the Azure Storage Account" return } $AzureBaseUrl = $AzureBaseUrl.Trim("/") $FileCount = 1 $BackupDirectory = $AzureBaseUrl } if ($OutputScriptOnly) { $IgnoreFileChecks = $true } } } process { if (!$SqlInstance -and !$InputObject) { Stop-Function -Message "You must specify a server and database or pipe some databases" return } Write-Message -Level Verbose -Message "$($InputObject.Count) database to backup" foreach ($Database in $InputObject) { $ProgressId = Get-Random $failures = @() $dbname = $Database.Name if ($dbname -eq "tempdb") { Stop-Function -Message "Backing up tempdb not supported" -Continue } if ('Normal' -notin ($Database.Status -split ',')) { Stop-Function -Message "Database status not Normal. $dbname skipped." -Continue } if ($Database.DatabaseSnapshotBaseName) { Stop-Function -Message "Backing up snapshots not supported. $dbname skipped." -Continue } if ($null -eq $server) { $server = $Database.Parent } Write-Message -Level Verbose -Message "Backup database $database" if ($null -eq $Database.RecoveryModel) { $Database.RecoveryModel = $server.Databases[$Database.Name].RecoveryModel Write-Message -Level Verbose -Message "$dbname is in $($Database.RecoveryModel) recovery model" } # Fixes one-off cases of StackOverflowException crashes, see issue 1481 $dbRecovery = $Database.RecoveryModel.ToString() if ($dbRecovery -eq 'Simple' -and $Type -eq 'Log') { $failreason = "$database is in simple recovery mode, cannot take log backup" $failures += $failreason Write-Message -Level Warning -Message "$failreason" } $lastfull = $database.Refresh().LastBackupDate.Year if ($Type -notin @("Database", "Full") -and $lastfull -eq 1) { $failreason = "$database does not have an existing full backup, cannot take log or differentialbackup" $failures += $failreason Write-Message -Level Warning -Message "$failreason" } if ($CopyOnly -ne $true) { $CopyOnly = $false } $server.ConnectionContext.StatementTimeout = 0 $backup = New-Object Microsoft.SqlServer.Management.Smo.Backup $backup.Database = $Database.Name $Suffix = "bak" if ($CompressBackup) { if ($database.EncryptionEnabled) { Write-Message -Level Warning -Message "$dbname is enabled for encryption, will not compress" $backup.CompressionOption = 2 } elseif ($server.Edition -like 'Express*' -or ($server.VersionMajor -eq 10 -and $server.VersionMinor -eq 0 -and $server.Edition -notlike '*enterprise*') -or $server.VersionMajor -lt 10) { Write-Message -Level Warning -Message "Compression is not supported with this version/edition of Sql Server" } else { Write-Message -Level Verbose -Message "Compression enabled" $backup.CompressionOption = 1 } } if ($Checksum) { $backup.Checksum = $true } if ($Type -in 'Diff', 'Differential') { Write-Message -Level VeryVerbose -Message "Creating differential backup" $SMOBackuptype = "Database" $backup.Incremental = $true $outputType = 'Differential' } $Backup.NoRecovery = $false if ($Type -eq "Log") { Write-Message -Level VeryVerbose -Message "Creating log backup" $Suffix = "trn" $OutputType = 'Log' $SMOBackupType = 'Log' $Backup.NoRecovery = $NoRecovery } if ($Type -in 'Full', 'Database') { Write-Message -Level VeryVerbose -Message "Creating full backup" $SMOBackupType = "Database" $OutputType = 'Full' } $backup.CopyOnly = $copyonly $backup.Action = $SMOBackupType if ('' -ne $AzureBaseUrl) { $backup.CredentialName = $AzureCredential } Write-Message -Level Verbose -Message "Building file name" $BackupFinalName = '' $FinalBackupPath = @() if ('NUL' -eq $BackupFileName) { $FinalBackupPath += 'NUL:' $IgnoreFileChecks = $true } elseif ('' -ne $BackupFileName) { $File = New-Object System.IO.FileInfo($BackupFileName) $BackupFinalName = $file.Name $suffix = $file.extension -Replace '^\.','' if ( '' -ne (Split-Path $BackupFileName)) { Write-Message -Level Verbose -Message "Fully qualified path passed in" $FinalBackupPath += [IO.Path]::GetFullPath($file.DirectoryName) } } else { $timestamp = (Get-Date -Format yyyyMMddHHmm) Write-Message -Level VeryVerbose -Message "Setting filename" $BackupFinalName = "$($dbname)_$timestamp.$suffix" } Write-Message -Level Verbose -Message "Building backup path" if ($FinalBackupPath.Count -eq 0) { $FinalBackupPath += $BackupDirectory } if ($BackupDirectory.Count -eq 1 -and $Filecount -gt 1) { for ($i = 0; $i -lt ($Filecount - 1); $i++) { $FinalBackupPath += $FinalBackupPath[0] } } if ($AzureBaseUrl -or $AzureCredential) { $slash = "/" } else { $slash = "\" } if ($FinalBackupPath.Count -gt 1) { $File = New-Object System.IO.FileInfo($BackupFinalName) for ($i = 0; $i -lt $FinalBackupPath.Count; $i++) { $FinalBackupPath[$i] = $FinalBackupPath[$i] + $slash + $($File.BaseName) + "-$($i+1)-of-$FileCount.$suffix" } } elseif ($FinalBackupPath[0] -ne 'NUL:') { $FinalBackupPath[0] = $FinalBackupPath[0] + $slash + $BackupFinalName } if ($CreateFolder -and $FinalBackupPath[0] -ne 'NUL:') { for ($i = 0; $i -lt $FinalBackupPath.Count; $i++) { $parent = [IO.Path]::GetDirectoryName($FinalBackupPath[$i]) $leaf = [IO.Path]::GetFileName($FinalBackupPath[$i]) $FinalBackupPath[$i] = [IO.Path]::Combine($parent, $dbname, $leaf) } } if (-not $IgnoreFileChecks -and -not $AzureBaseUrl) { $parentPaths = ($FinalBackupPath | ForEach-Object { Split-Path $_ } | Select-Object -Unique) foreach ($parentPath in $parentPaths) { if (-not (Test-DbaPath -SqlInstance $server -Path $parentPath)) { if (($BuildPath -eq $true) -or ($CreateFolder -eq $True)) { $null = New-DbaDirectory -SqlInstance $server -Path $parentPath } else { $failreason += "SQL Server cannot check if $parentPath exists. You can try disabling this check with -IgnoreFileChecks" $failures += $failreason Write-Message -Level Warning -Message "$failreason" } } } } if ('' -eq $AzureBaseUrl -and $BackupDirectory) { $FinalBackupPath = $FinalBackupPath | ForEach-Object { [IO.Path]::GetFullPath($_) } } $script = $null $backupComplete = $false if (!$failures) { $Filecount = $FinalBackupPath.Count foreach ($backupfile in $FinalBackupPath) { $device = New-Object Microsoft.SqlServer.Management.Smo.BackupDeviceItem if ('' -ne $AzureBaseUrl) { $device.DeviceType = "URL" } else { $device.DeviceType = "File" } if ($WithFormat) { Write-Message -Message "WithFormat specified. Ensuring Initialize and SkipTapeHeader are set to true." -Level Verbose $Initialize = $true $SkipTapeHeader = $true } $backup.FormatMedia = $WithFormat $backup.Initialize = $Initialize $backup.SkipTapeHeader = $SkipTapeHeader $device.Name = $backupfile $backup.Devices.Add($device) } $humanBackupFile = $FinalBackupPath -Join ',' Write-Message -Level Verbose -Message "Devices added" $percent = [Microsoft.SqlServer.Management.Smo.PercentCompleteEventHandler] { Write-Progress -id $ProgressId -activity "Backing up database $dbname to $humanBackupFile" -percentcomplete $_.Percent -status ([System.String]::Format("Progress: {0} %", $_.Percent)) } $backup.add_PercentComplete($percent) $backup.PercentCompleteNotification = 1 $backup.add_Complete($complete) if ($MaxTransferSize) { $backup.MaxTransferSize = $MaxTransferSize } if ($BufferCount) { $backup.BufferCount = $BufferCount } if ($BlockSize) { $backup.Blocksize = $BlockSize } Write-Progress -id $ProgressId -activity "Backing up database $dbname to $humanBackupFile" -percentcomplete 0 -status ([System.String]::Format("Progress: {0} %", 0)) try { if ($Pscmdlet.ShouldProcess($server.Name, "Backing up $dbname to $humanBackupFile")) { if ($OutputScriptOnly -ne $True) { $Filelist = @() $FileList += $server.Databases[$dbname].FileGroups.Files | Select-Object @{ Name = "FileType"; Expression = { "D" } }, @{ Name = "Type"; Expression = { "D" } }, @{ Name = "LogicalName"; Expression = { $_.Name } }, @{ Name = "PhysicalName"; Expression = { $_.FileName } } $FileList += $server.Databases[$dbname].LogFiles | Select-Object @{ Name = "FileType"; Expression = { "L" } }, @{ Name = "Type"; Expression = { "L" } }, @{ Name = "LogicalName"; Expression = { $_.Name } }, @{ Name = "PhysicalName"; Expression = { $_.FileName } } $backup.SqlBackup($server) $script = $backup.Script($server) Write-Progress -id $ProgressId -activity "Backing up database $dbname to $backupfile" -status "Complete" -Completed $BackupComplete = $true if ($server.VersionMajor -eq '8') { $HeaderInfo = Get-BackupAncientHistory -SqlInstance $server -Database $dbname } else { $HeaderInfo = Get-DbaBackupHistory -SqlInstance $server -Database $dbname -Last -IncludeCopyOnly | Sort-Object -Property End -Descending | Select-Object -First 1 } $Verified = $false if ($Verify) { $verifiedresult = [PSCustomObject]@{ SqlInstance = $server.name DatabaseName = $dbname BackupComplete = $BackupComplete BackupFilesCount = $FinalBackupPath.Count BackupFile = (Split-Path $FinalBackupPath -Leaf) BackupFolder = (Split-Path $FinalBackupPath | Sort-Object -Unique) BackupPath = ($FinalBackupPath | Sort-Object -Unique) Script = $script Notes = $failures -join (',') FullName = ($FinalBackupPath | Sort-Object -Unique) FileList = $FileList SoftwareVersionMajor = $server.VersionMajor Type = $outputType FirstLsn = $HeaderInfo.FirstLsn DatabaseBackupLsn = $HeaderInfo.DatabaseBackupLsn CheckPointLsn = $HeaderInfo.CheckPointLsn LastLsn = $HeaderInfo.LastLsn BackupSetId = $HeaderInfo.BackupSetId LastRecoveryForkGUID = $HeaderInfo.LastRecoveryForkGUID } | Restore-DbaDatabase -SqlInstance $server -DatabaseName DbaVerifyOnly -VerifyOnly -TrustDbBackupHistory -DestinationFilePrefix DbaVerifyOnly if ($verifiedResult[0] -eq "Verify successful") { $failures += $verifiedResult[0] $Verified = $true } else { $failures += $verifiedResult[0] $Verified = $false } } $HeaderInfo | Add-Member -Type NoteProperty -Name BackupComplete -Value $BackupComplete $HeaderInfo | Add-Member -Type NoteProperty -Name BackupFile -Value (Split-Path $FinalBackupPath -Leaf) $HeaderInfo | Add-Member -Type NoteProperty -Name BackupFilesCount -Value $FinalBackupPath.Count if ($FinalBackupPath[0] -eq 'NUL:') { $pathresult = "NUL:" } else { $pathresult = (Split-Path $FinalBackupPath | Sort-Object -Unique) } $HeaderInfo | Add-Member -Type NoteProperty -Name BackupFolder -Value $pathresult $HeaderInfo | Add-Member -Type NoteProperty -Name BackupPath -Value ($FinalBackupPath | Sort-Object -Unique) $HeaderInfo | Add-Member -Type NoteProperty -Name DatabaseName -Value $dbname $HeaderInfo | Add-Member -Type NoteProperty -Name Notes -Value ($failures -join (',')) $HeaderInfo | Add-Member -Type NoteProperty -Name Script -Value $script $HeaderInfo | Add-Member -Type NoteProperty -Name Verified -Value $Verified } else { $backup.Script($server) } } } catch { if ($NoRecovery -and ($_.Exception.InnerException.InnerException.InnerException -like '*cannot be opened. It is in the middle of a restore.')) { Write-Message -Message "Exception thrown by db going into restoring mode due to recovery" -Leve Verbose } else { Write-Progress -id $ProgressId -activity "Backup" -status "Failed" -completed Stop-Function -message "Backup Failed: $($_.Exception.Message)" -EnableException $EnableException -ErrorRecord $_ -Continue $BackupComplete = $false } } } $OutputExclude = 'FullName', 'FileList', 'SoftwareVersionMajor' if ($failures.Count -eq 0) { $OutputExclude += ('Notes', 'FirstLsn', 'DatabaseBackupLsn', 'CheckpointLsn', 'LastLsn', 'BackupSetId', 'LastRecoveryForkGuid') } $headerinfo | Select-DefaultView -ExcludeProperty $OutputExclude $BackupFileName = $null } } } |