測試環境為 Windows2012 R2 x86_64 (虛擬機)
- ServerA IP : 192.168.95.176
- ServerB IP : 192.168.95.175
原本計劃使用 DFS-Replication (分散式檔案系統 Distributed File System) 複寫功能將 ServerA 的資料同步到 ServerB,但需要先架設好 AD (Active Directory),因為就只有兩台 server A , B 所以就先不考慮使用 AD+DFS 架構了.
找了另外一個比較簡單的方式,直接使用 Windows 內建的指令 robocopy (Robust File Copy).
robocopy "<source replicated folder path>" "<destination replicated folder path>" /Parameter
像我的情況需要將 ServerA 的資料同步到 ServerB 就可以使用參數 /MIR (Mirror 鏡像) ,但需要注意的是當執行 robocopy 後 serverB 的資料會隨著 ServerA 一樣新增,刪除,如果想要保留 serverA 的舊資料可以使用 磁碟區陰影複製服務（Volume Shadow Copy Service） 的功能.
下面範例將 遠端 \\192.168.95.175\share 資料夾鏡像 (Mirror) 到 本地端的 c:\Mirror\ 資料夾.
C:\Users\Ben>robocopy \\192.168.95.175\share c:\Mirror\ /MIR
-------------------------------------------------------------------------------
ROBOCOPY :: Robust File Copy for Windows
-------------------------------------------------------------------------------
Started : Wednesday, September 12, 2018 8:44:44 AM
Source : \\192.168.95.175\share\
Dest : c:\Mirror\
Files : *.*
Options : *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30
------------------------------------------------------------------------------
3 \\192.168.95.175\share\
100% New File 0 New Bitmap Image.bmp
New File 22 New Compressed (zipped) Folder.z
100%
100% New File 976 New Text Document.lnk
New Dir 2 \\192.168.95.175\share\New folder\
100% New File 0 New Bitmap Image.bmp
100% New File 10 New Text Document.txt
------------------------------------------------------------------------------
Total Copied Skipped Mismatch FAILED Extras
Dirs : 2 1 0 0 0 0
Files : 5 5 0 0 0 0
Bytes : 1008 1008 0 0 0 0
Times : 0:00:00 0:00:00 0:00:00 0:00:00
Speed : 63000 Bytes/sec.
Speed : 3.604 MegaBytes/min.
Ended : Wednesday, September 12, 2018 8:44:44 AM
當遠端資料沒有更新時,本地端的資料就不會更新 (skipped).
C:\Users\Ben>robocopy \\192.168.95.175\share c:\Mirror\ /MIR
-------------------------------------------------------------------------------
ROBOCOPY :: Robust File Copy for Windows
-------------------------------------------------------------------------------
Started : Wednesday, September 12, 2018 8:45:07 AM
Source : \\192.168.95.175\share\
Dest : c:\Mirror\
Files : *.*
Options : *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30
------------------------------------------------------------------------------
3 \\192.168.95.175\share\
2 \\192.168.95.175\share\New folder\
------------------------------------------------------------------------------
Total Copied Skipped Mismatch FAILED Extras
Dirs : 2 0 0 0 0 0
Files : 5 0 5 0 0 0
Bytes : 1008 0 1008 0 0 0
Times : 0:00:00 0:00:00 0:00:00 0:00:00
Ended : Wednesday, September 12, 2018 8:45:07 AM
不做鏡像時,微軟建議使用參數如下.
robocopy.exe "\\srv01\e$\rf01" "d:\rf01" /e /b /copyall /r:6 /w:5 /MT:64 /xd DfsrPrivate /tee /log:c:\temp\preseedsrv02.log
參數說明:
- /e
Copies subdirectories and their files, as well as empty subdirectories. - /b
Copies files in Backup mode. - /copyal
Copies all file information, including data, attributes, time stamps, the NTFS access control list (ACL), owner information, and auditing information. - /r:6
Retries the operation six times when an error occurs. - /w:5
Waits 5 seconds between retries. - MT:64
Copies 64 files simultaneously. - /xd DfsrPrivate
Excludes the DfsrPrivate folder. - /tee
Writes status output to the console window, as well as to the log file. - /log <log file path>
Specifies the log file to write. Overwrites the file’s existing contents. (To append the entries to the existing log file, use /log+ <log file path>.) - /v
Produces verbose output that includes skipped files.
其他參數請參考 https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/robocopy
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