重複資料刪除互通性Data Deduplication interoperability

適用於:Windows Server (半年度管道)、Windows Server 2016Applies to: Windows Server (Semi-Annual Channel), Windows Server 2016

支援Supported

容錯移轉叢集Failover Clustering

完全支援容錯移轉叢集,並假設叢集中的每個節點都已安裝重複資料刪除功能Failover Clustering is fully supported, if every node in the cluster has the Data Deduplication feature installed. 其他重要注意事項:Other important notes:

  • 手動啟動重複資料刪除工作必須在「叢集共用磁碟區」的「擁有者」節點上執行。Manually started Data Deduplication jobs must be run on the Owner node for the Cluster Shared Volume.
  • 排定的重複資料刪除工作會儲存於排定的叢集工作中,因此,如果重複資料刪除磁碟區已由另一個節點接手,則排定的工作將會在下次排定的間隔執行。Scheduled Data Deduplication jobs are stored in the cluster task scheduled so that if a deduplicated volume is taken over by another node, the scheduled job will be applied on the next scheduled interval.
  • 重複資料刪除功能可完全與叢集作業系統輪流升級功能互相操作。Data Deduplication fully interoperates with the Cluster OS Rolling Upgrade feature.
  • 儲存空間直接存取 NTFS 格式化的磁碟區 (鏡像或同位) 上完全支援重複資料刪除功能。Data Deduplication is fully supported on Storage Spaces Direct NTFS-formatted volumes (mirror or parity). 具有多層的磁碟區不支援刪除重複資料。Deduplication is not supported on volumes with multiple tiers. 如需詳細資訊,請參閱 ReFS 上的重複資料刪除See Data Deduplication on ReFS for more information.

儲存體複本Storage Replica

完整支援儲存體複本Storage Replica is fully supported. 「重複資料刪除」應該設定為不會在次要複本上執行。Data Deduplication should be configured to not run on the secondary copy.

BranchCacheBranchCache

您可以藉由在伺服器與用戶端上啟用 BranchCache,將透過網路存取資料的程序最佳化。You can optimize data access over the network by enabling BranchCache on servers and clients. 當已啟用 BranchCache 的系統透過 WAN 與執行重複資料刪除的遠端檔案伺服器通訊時,就已經編製所有刪除重複資料之檔案的索引並進行雜湊。When a BranchCache-enabled system communicates over a WAN with a remote file server that is running data deduplication, all of the deduplicated files are already indexed and hashed. 因此,會快速地計算從分公司存取資料的要求。Therefore, requests for data from a branch office are quickly computed. 這類似於替已啟用 BranchCache 的伺服器預先編製索引或預先雜湊處理。This is similar to preindexing or prehashing a BranchCache-enabled server.

DFS 複寫DFS Replication

重複資料刪除可與分散式檔案系統 (DFS) 複寫搭配使用。Data Deduplication works with Distributed File System (DFS) Replication. 將檔案最佳化或未最佳化不會觸發複寫,因為檔案不會變更。Optimizing or unoptimizing a file will not trigger a replication because the file does not change. DFS 複寫使用遠端差異壓縮 (RDC) (而非使用區塊存放區中的區塊) 來進行有線網路節約。DFS Replication uses Remote Differential Compression (RDC), not the chunks in the chunk store, for over-the-wire savings. 如果複本使用重複資料刪除,也可以使用重複資料刪除將複本上的檔案最佳化。The files on the replica can also be optimized by using deduplication if the replica is using Data Deduplication.

配額Quotas

重複資料刪除不支援在也會啟用重複資料刪除的磁碟區根資料夾上建立固定配額。Data Deduplication does not support creating a hard quota on a volume root folder that also has deduplication enabled. 磁碟區根目錄上有固定配額時,磁碟區的實際可用空間與磁碟區的配額限制空間將會不同。When a hard quota is present on a volume root, the actual free space on the volume and the quota-restricted space on the volume are not the same. 這可能會導致重複資料刪除最佳化工作失敗。This may cause deduplication optimization jobs to fail. 但是,很可能會在已啟用重複資料刪除的磁碟區根目錄上建立彈性配額。It is possible however to creating a soft quota on a volume root that has deduplication enabled.

在重複資料刪除磁碟區上啟用配額時,配額會使用檔案的邏輯大小,而不是檔案的實際大小。When quota is enabled on a deduplicated volume, quota uses the logical size of the file rather than the physical size of the file. 重複資料刪除工作處理檔案時,不會變更配額使用量 (包含任何配額閾值)。Quota usage (including any quota thresholds) does not change when a file is processed by deduplication. 使用重複資料刪除時,所有其他配額功能 (包含磁碟區根目錄的彈性配額和子資料夾上的配額) 都能正常運作。All other quota functionality, including volume-root soft quotas and quotas on subfolders, works normally when using deduplication.

Windows Server BackupWindows Server Backup

Windows Server Backup 可以依原樣備份最佳化的磁碟區 (亦即,不需移除已經過重複資料刪除的資料)。Windows Server Backup can back up an optimized volume as-is (that is, without removing deduplicated data). 下列步驟示範如何備份磁碟區,以及如何還原磁碟區或磁碟區中選取的檔案。The following steps show how to back up a volume and how to restore a volume or selected files from a volume.

  1. 安裝 Windows Server Backup。Install Windows Server Backup.

    Install-WindowsFeature -Name Windows-Server-Backup
    
  2. 執行下列命令將 E: 磁碟區備份至另一個磁碟區,並針對您的情況替代正確的磁碟區名稱。Back up the E: volume to another volume by running the following command, substituting the correct volume names for your situation.

    wbadmin start backup –include:E: -backuptarget:F: -quiet
    
  3. 取得您剛建立之備份的版本識別碼。Get the version ID of the backup you just created.

    wbadmin get versions
    

    此輸出版本識別碼會是一個日期和時間字串,例如︰08/18/2016-06:22。This output version ID will be a date and time string, for example: 08/18/2016-06:22.

  4. 還原整個磁碟區。Restore the entire volume.

    wbadmin start recovery –version:02/16/2012-06:22 -itemtype:Volume  -items:E: -recoveryTarget:E:
    

    --或----OR--

    還原特定資料夾 (在此案例中為 E:\Docs 資料夾):Restore a particular folder (in this case, the E:\Docs folder):

    wbadmin start recovery –version:02/16/2012-06:22 -itemtype:File  -items:E:\Docs  -recursive
    

不支援Unsupported

ReFSReFS

Windows Server 2016 不支援 ReFS 格式化磁碟區上的重複資料刪除。Windows Server 2016 does not support Data Deduplication on ReFS-formatted volumes. 在 Windows Server Storage UserVoice 上投票給 Windows Server vNext 的這個項目Vote for this item for Windows Server vNext on the Windows Server Storage UserVoice.

Windows 10 (用戶端作業系統)Windows 10 (client OS)

Windows 10 不支援重複資料刪除。Data Deduplication is not supported on Windows 10. Windows 社群中有數篇熱門部落格文章說明如何將二進位檔從 Windows Server 2016 移除並安裝在 Windows 10,但是這個案例在「重複資料刪除」的開發過程中還未經驗證。There are several popular blog posts in the Windows community describing how to remove the binaries from Windows Server 2016 and install on Windows 10, but this scenario has not been validated as part of the development of Data Deduplication. 在 Windows Server Storage UserVoice 上投票給 Windows 10 vNext 的這個項目Vote for this item for Windows 10 vNext on the Windows Server Storage UserVoice.

Windows 搜尋Windows Search

Windows 搜尋不支援重複資料刪除。Windows Search doesn't support Data Deduplication. 重複資料刪除會使用重新分析點,而使得 Windows 搜尋無法編製索引,因此 Windows 搜尋會略過所有重複資料刪除的檔案,並將之排除在索引內容之外。Data Deduplication uses reparse points, which Windows Search can't index, so Windows Search skips all deduplicated files, excluding them from the index. 因此,對重複資料刪除磁碟區的搜尋結果可能不完整。As a result, search results might be incomplete for deduplicated volumes. 在 Windows Server Storage UserVoice 上投票給 Windows Server vNext 的這個項目Vote for this item for Windows Server vNext on the Windows Server Storage UserVoice.

RobocopyRobocopy

不建議搭配重複資料刪除功能執行 Robocopy,因為某些 Robocopy 命令可能會造成「區塊存放區」損毀。Running Robocopy with Data Deduplication is not recommended because certain Robocopy commands can corrupt the Chunk Store. 區塊存放區會儲存於磁碟區的 [System Volume Information] 資料夾中。The Chunk Store is stored in the System Volume Information folder for a volume. 如果刪除該資料夾,則從來源磁碟區複製的最佳化檔案 (重新分析點) 都會變成損毀,因為資料區塊不會複製到目的地磁碟區。If the folder is deleted, the optimized files (reparse points) that are copied from the source volume become corrupted because the data chunks are not copied to the destination volume.