从 Azure 文件复制到 BLOB

Question

Azure 是否有一种方法可以在存储容器之间移动文件，而无需将文件下载回您的笔记本电脑？我尝试了 AzCopy，但似乎正在下载然后重新上传文件。

Answer 1

Azcopy 确实为server-side copy 提供了该功能。这实际上是默认行为。 您可以找到 here 的示例： AzCopy /Source:https://myaccount.blob.core.windows.net/mycontainer1 /Dest:https://myaccount.blob.core.windows.net/mycontainer2 /SourceKey:key /DestKey:key /Pattern:abc.txt

但是，请注意：由于您基本上是从 Azure 免费获得所需的计算作为备用容量，因此您不会获得任何性能 SLA。因此，在大多数情况下，这比在同一 Azure 区域中使用快速 VM 并使用所谓的同步复制（使用 azcopy 中的 /SyncCopy 参数下载并上传到复制）要慢得多。

所以：如果您有时间和什么可以省钱，请使用服务器端副本。如果您希望快速完成复制，请使用 /SyncCopy

Answer 2

您可以使用Runbook 来完成此操作。这是 Microsoft 网站上实现此目的的文章的链接；

https://blogs.msdn.microsoft.com/cloud_solution_architect/2016/05/09/azure-storage-account-backup-azure-automation-runbook-azure-functions/

这里是相关代码，稍作修改以使 ResourceGroup 成为变量。

$primary = Get-AutomationVariable -Name 'Log-Storage-Primary'
$secondary = Get-AutomationVariable -Name 'Log-Storage-Secondary'
$ResourceGroupName = Get-AutomatioNVariable -Name 'LogStorageResourceGroup'

$Conn = Get-AutomationConnection -Name AzureRunAsConnection
Add-AzureRMAccount -ServicePrincipal -Tenant $Conn.TenantID -ApplicationId $Conn.ApplicationID -CertificateThumbprint $Conn.CertificateThumbprint

$primarykey = Get-AzureRmStorageAccountKey -ResourceGroupName $ResourceGroupName -Name $primary
$secondarykey = Get-AzureRmStorageAccountKey -ResourceGroupName $ResourceGroupName -Name $secondary

$primaryctx = New-AzureStorageContext -StorageAccountName $primary -StorageAccountKey $primarykey.Key1
$secondaryctx = New-AzureStorageContext -StorageAccountName $secondary -StorageAccountKey $secondarykey.Key1

$primarycontainers = Get-AzureStorageContainer -Context $primaryctx

# Loop through each of the containers
foreach($container in $primarycontainers) {
    # Do a quick check to see if the secondary container exists, if not, create it.
    $secContainer = Get-AzureStorageContainer -Name $container.Name -Context $secondaryctx -ErrorAction SilentlyContinue

    if (!$secContainer) {
        $secContainer = New-AzureStorageContainer -Context $secondaryctx -Name $container.Name
        Write-Host "Successfully created Container" $secContainer.Name "in Account" $secondary
    }

    # Loop through all of the objects within the container and copy them to the same container on the secondary account
    $primaryblobs = Get-AzureStorageBlob -Container $container.Name -Context $primaryctx
    foreach($blob in $primaryblobs) {
        $copyblob = Get-AzureStorageBlob -Context $secondaryctx -Blob $blob.Name -Container $container.Name -ErrorAction SilentlyContinue

        # Check to see if the blob exists in the secondary account or if it has been updated since the last runtime.
        if (!$copyblob -or $blob.LastModified -gt $copyblob.LastModified) {
            $copyblob = Start-AzureStorageBlobCopy -SrcBlob $blob.Name -SrcContainer $container.Name -Context $primaryctx -DestContainer $secContainer.Name -DestContext $secondaryctx -DestBlob $blob.Name
            $status = $copyblob | Get-AzureStorageBlobCopyState

            while ($status.Status -eq "Pending") {
                $status = $copyblob | Get-AzureStorageBlobCopyState
                Start-Sleep 10
            }
            Write-Host "Successfully copied blob" $copyblob.Name "to Account" $secondary "in container" $container.Name
        }
    }
}