I had a bad VHD that I was unable to copy, I would get CANNOT READ SOURCE… after about 30%. Then I tried to build a new VHD using the COPY CONTENTS… function in HyperV but that failed at about 30% too. Now I was getting worried. Fortunately the VHD would start and function without apparent error in its HyperV VM, so I could copy the files and folders but who wants to rebuild all the permissions… not me. The answer was the simple command line tool RoboCopy!

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Robocopy Gui Download Windows Server 2012 R2
Robocopy Download Server 2012 R2 Download Iso

Robocopy download server 2012 r2 download iso

Aug 24, 2019 Windows Server 2008 & 2008 R2. Windows Server 2012 & 2012 R2. Windows Server 2016. Note: Earlier version also supports Robocopy, you need to download the robocopy command from Windows Resource Toolkit or Microsoft Website. Oct 04, 2016 Find answers to Robocopy on Windows Server 2012 r2 syntax from the expert community at Experts Exchange.

Robocopy, which is short for Robust Copy, originally came in the Windows NT4 (yes, in the 1990’s) Windows Resource Kit which you had to buy separately. It was built to transfer files over unstable links, specifically satellite links. That puts a WOW in WAN! Regardless it has come and gone in popularity over the 2000’s but now is built into the operating system of Windows 8, 10, Server 2012, Server 2012 R2 and Server 2016, so it is a tool all administrators should at least have an awareness of.

The command I used was:

Robocopy or Robust File and Folder Copy application is very popular amongst Windows system administrators. Robocopy will copy the local or given file to the remote or destination location. Robocopy Features. The command robocopy provides very useful features for files copying over network. Below we will list some of them.
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I would like to share the Robocopy command I used to migrate my file server to a new Server 2012 R2 VM. Note: Use the same drive letters and the exact same file paths on your new Windows Server 2012 R2 server. Failing to do so will result in the share information not matching and your migration fail. Details on the Robocopy switches.

robocopy <server><share> T:<share> /COPYALL /ZB /R:2 /W:2 /E

The switches mean:

<server><share> = source location

T:<share> = destination location. in my case it was on the T: drive

/COPYALL = copy the shares and permissions

/ZB = restartable mode so it will pickup if there is a bump

/R:2 = the number of retries in case the file is in use or has a problem

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/W:2 = the number of seconds to wait between retries

/E = copy EVERYTHING including subfolders and empty subfolders

If want to read more about this type robocopy /??? and you will see the most documentation in a an integrated help file you have ever seen. Alternately, you might find THIS post helpful and THIS Wikipedia page interesting

This was surprisingly tricking issue to deal with. If you are copying TO or FROM a Deduplicated file share you must make certain:

Do NOT robocopy the a partition or volume – only robocopy sharesfolders. This is because the dedup information is stored in the SYSTEM VOLUME INFORMATION folder and at folder can not be migrated with robocopy. It needs to be built on the partitionvolume that the dedup exists on.
Make sure you do NOT use /XJ switch. XJ is Exclude Junction points and junction points (JP’s) are tied into the deduplication process. In previous versions of Windows, starting with Vista, I have needed to use /XJ because if robocopy hit tried to copy a JP’s the destination disk would fill up with thousands of nested folders matching the name of the JP. Worse this problem was not readily recoverable by deleting those folders, even using the old POSIX commands. The only solution, according to Microsoft Partner Support (and from my experience) was to reformat the disk… not cool.

Robocopy Gui Download Windows Server 2012 R2

Microsoft Partner Support also indicated that you should use the /ZB (backup mode) switch but our experience thus far has not borne this out as a requirement.

Robocopy Download Server 2012 R2 Download Iso

For more information, see my thread with Partner Support or this technet article if you are not a partner.