PowerShell 指令碼 - 將已刪除的檔案共用取消刪除 - Azure Backup

文章
05/11/2023

如果意外刪除檔案共用，則此指令碼可協助您將其取消刪除。檔案共用的虛刪除安全性功能可讓您選擇在 14 天的保留期間內取消刪除檔案共用，以允許復原所有檔案共用內容、快照集和復原點。若要深入瞭解虛刪除，請造訪此連結。

範例指令碼

#Import-Module Az.Storage -MinimumVersion 1.7.0 -Scope Local
Param(
        [Parameter(Mandatory=$True)][System.String] $ResourceGroupName,
        [Parameter(Mandatory=$True)][System.String] $StorageAccountName,
        [Parameter(Mandatory=$True)][System.String] $FileShareName,
        [Parameter(Mandatory=$True)][System.String] $SubscriptionId,
        [Parameter(Mandatory=$False)][System.Boolean] $ListOption,
        [Parameter(Mandatory=$False)][System.String] $DeletedShareVersion
    )

Function Restore-DeletedFileShare
{
    Param(
        [Parameter(Mandatory=$True)][Microsoft.WindowsAzure.Commands.Common.Storage.LazyAzureStorageContext] $Context,
        [Parameter(Mandatory=$True)][System.String] $FileShareName,
        [Parameter(Mandatory=$False)][System.String] $DeletedShareVersion
        )

    if ([string]::IsNullOrWhiteSpace($FileShareName))
    {
        Write-Error "Please specify the required input parameter: FileShareName" -ErrorAction Stop
    }

    $FileShareName = $FileShareName.ToLowerInvariant()

    Write-Verbose "Restoring a file share with the name: $FileShareName" -Verbose


    Write-Information -MessageData "Started: Creating SASToken to List File Shares" -InformationAction Continue

    $listToken = New-AzStorageAccountSASToken -Context $Context -Service File -ResourceType Service -Permission "l" -Protocol HttpsOrHttp -StartTime (Get-Date).AddHours(-1) -ExpiryTime (Get-Date).AddHours(1)

    Write-Information -MessageData "Completed: Creating SASToken to List File Shares" -InformationAction Continue

    Write-Information -MessageData "Started: Listing File Shares to find the deleted file share" -InformationAction Continue

    $listSharesUrl = [string]::Concat($Context.FileEndPoint, "?include=metadata,deleted&comp=list&api-version=2019-10-10&", $listToken.Substring(1))

    $listSharesResponse = Invoke-WebRequest $listSharesUrl -Method "GET" -Verbose

    if ($listSharesResponse.StatusCode -ne 200)
    {
        Write-Error "Request to list file shares failed." -ErrorAction Stop
    }

    Write-Verbose $listSharesResponse.RawContent -Verbose

    $listSharesResponseContent = $listSharesResponse.Content.Substring(3)

    Write-Information -MessageData "Completed: Listing File Shares to find the deleted file share" -InformationAction Continue

    Write-Information -MessageData "Started: Search for a deleted file share with the specified name" -InformationAction Continue

    $deletedFileShares = Select-Xml -Content $listSharesResponseContent -XPath "/EnumerationResults/Shares/Share[Deleted=""true"" and Name=""$FileShareName""]"

    $matchedCount = 0
    $deletedShareVersions = New-Object System.Collections.Generic.List[string]

    foreach($share in $deletedFileShares)
    {
        if($matchedCount -eq 0)
        {
          Write-Verbose $share.Node.InnerXml -Verbose

          Write-Information -MessageData "Completed: Search for a deleted file share with the specified name And Found versions" -InformationAction Continue
        }

        $shareVer = $share.Node.Item("Version").InnerText
        $shareDelTime = $share.Node.Item("Properties").Item("DeletedTime").InnerText
        $retDays = $share.Node.Item("Properties").Item("RemainingRetentionDays").InnerText

        $deletedShareVersions.Add($share.Node.Item("Version").InnerText)

        Write-Information -MessageData "DeletedVersion: $shareVer, DeletedTime: $shareDelTime, RemainingRetentionDays: $retDays"  -InformationAction Continue

        $matchedCount++
    }

    if($ListOption -eq $True)
    {
       return;
    }

    if ($matchedCount -eq 0)
    {
        Write-Error "Deleted file share with the specified name was not found." -ErrorAction Stop
    }
    elseif($matchedCount -eq 1 -and ([string]::IsNullOrWhiteSpace($DeletedShareVersion) -or $deletedShareVersions.Contains($DeletedShareVersion)))
    {
      $DeletedShareVersion = $deletedShareVersions
    }
    elseif ($matchedCount -gt 1)
    {
      if ([string]::IsNullOrWhiteSpace($DeletedShareVersion) -or !$deletedShareVersions.Contains($DeletedShareVersion))
      {
        Write-Error "More than one share with the specified name was found. Please specify a valid DeletedShareVersion parameter from above possible values." -ErrorAction Stop
      }
    }

    Write-Information -MessageData "Completed: Search for a deleted file share with the specified name And Found version: $DeletedShareVersion" -InformationAction Continue

    Write-Information -MessageData "Started: Creating SASToken to Restore File Share" -InformationAction Continue

    $restoreToken = New-AzStorageAccountSASToken -Context $Context -Service File -ResourceType Container -Permission "w" -Protocol HttpsOrHttp -StartTime (Get-Date).AddHours(-1) -ExpiryTime (Get-Date).AddHours(1)

    Write-Information -MessageData "Completed: Creating SASToken to Restore File Share" -InformationAction Continue

    Write-Information -MessageData "Started: Restore File Share" -InformationAction Continue

 $restoreShareUrl = [string]::Concat($Context.FileEndPoint, $FileShareName, "?restype=share&comp=undelete&api-version=2019-10-10&", $restoreToken.Substring(1))

    $restoreHeaders = @{"x-ms-deleted-share-name" = $FileShareName; "x-ms-deleted-share-version" = $DeletedShareVersion}

    $restoreResponse = Invoke-WebRequest $restoreShareUrl -Headers $restoreHeaders -Method "PUT" -Verbose

    if ($restoreResponse.StatusCode -ne 201)
    {
        Write-Error "Request to restore a file share failed." -ErrorAction Stop
    }

    Write-Verbose $restoreResponse.RawContent -Verbose

    Write-Information -MessageData "Completed: Restore File Share" -InformationAction Continue
}

Connect-AzAccount
Select-AzSubscription -Subscription $SubscriptionId
$sa = Get-AzStorageAccount -ResourceGroupName $ResourceGroupName -Name $StorageAccountName


Restore-DeletedFileShare $sa.Context $FileShareName $DeletedShareVersion

如何在不同的情況下使用指令碼

必要條件

在執行指令碼之前，請先從此連結安裝最新的 Azure PowerShell Az 模組。
請備妥下列詳細資料，因為您必須將這些資料當做指令碼的不同參數值來傳遞：
- -SubscriptionId - 檔案共用所屬之訂用帳戶 ID。
- -ResourceGroupName - 主控檔案共用的儲存體帳戶資源群組。
- -StorageAccountName - 主控檔案共用的儲存體帳戶名稱。
- -FileShareName - 要取消刪除的檔案共用名稱

執行步驟

使用您選擇的名稱，將上述指令碼儲存在您的電腦上。在此範例中，我們將它儲存為 取消刪除。 ps1
根據符合您需求的情況來執行指令碼。

實例 1

沒有與您嘗試取消刪除的檔案共用名稱稱相同的多個已刪除版本。

下列範例會取消刪除存在於儲存體帳戶 afsshare 中的檔案共用 share1。

   .\UnDelete.ps1 -ResourceGroupName afsshare -StorageAccountName afsshare -SubscriptionId f75d8d8b-6735-4697-82e1-1a7a3ff0d5d4 -FileShareName share1

輸出應該會顯示訊息 Completed:Restore File Share

案例 2

有多個已刪除的版本與您嘗試取消刪除的檔案共用名稱稱相同。

下列範例會取消刪除某個版本的檔案共用 share1

步驟 1

藉由提供檔案共用名稱來執行指令碼，如下所示。

   .\UnDelete.ps1 -ResourceGroupName afsshare -StorageAccountName afsshare -SubscriptionId f75d8d8b-6735-4697-82e1-1a7a3ff0d5d4 -FileShareName share1

Completed: Search for a deleted file share with the specified name and Found versions
DeletedVersion: 01D5D7F77ACC7864, DeletedTime: Fri, 31 Jan 2020 05:30:33 GMT, RemainingRetentionDays: 14
DeletedVersion: 01D5D7F7A76CAF42, DeletedTime: Fri, 31 Jan 2020 05:31:25 GMT, RemainingRetentionDays: 14
Restore-DeletedFileShare : More than one share with the specified name was found. Please specify a valid DeletedShareVersion parameter from above possible values.

步驟 2

從步驟 1 的輸出中選擇您要取消刪除的版本，並將其作為 -DeletedShareVersion 參數的值傳遞。

下列範例取消刪除 share1 檔案共用的 01D5D7F77ACC7864 版本。

   .\UnDelete.ps1 -ResourceGroupName afsshare-StorageAccountName afsshare -SubscriptionId f75d8d8b-6735-4697-82e1-1a7a3ff0d5d4 -FileShareName share1 -DeletedShareVersion 01D5D7F77ACC7864

分享方式：

範例指令碼

如何在不同的情況下使用指令碼

必要條件

執行步驟

實例 1

案例 2

步驟 1

步驟 2

意見反映

更多資源

分享方式：

用來將意外刪除的檔案共用取消刪除的 PowerShell 指令碼

範例指令碼

如何在不同的情況下使用指令碼

必要條件

執行步驟

實例 1

案例 2

步驟 1

步驟 2

意見反映

更多資源