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Command to mirror a hard drive to another.

C

Compman55

Golden Member
The drag & drop method does not seem to get everything from my 2TB RAID 1 array over to my 4TB RAID 1 array.

There were some issues with permissions. Being it is not a boot drive, is there a command line to force it over?

OS is server 2008 r2.
 
Code: 
robocopy d:\thesource e:\thedestination *.* /s /e /COPYALL /r:1 /w:1

Be 100% sure you are running as an admin on both machines when you do this or copies will go weird if the ACL on the directory block the files from being written.

Some times this is useful: The /MT can be 2-128 if you have fast storage /MT:32 can make a copy fly since it will copy 32 files at a time. I have seen /MT:128 max out a VNX LUN so take that as you will.

Code: 
robocopy d:\thesource e:\thedestination *.* /s /e /COPYALL /r:1 /w:1 /MIR /TEE /MT:8 /LOG C:\somedir\logfile.txt
 
Last edited:
That might be the problem.

I am logged on as myself (user) with admin rights on machine b. Server is logged onto as the admin. Should I log onto machine b under the admin account or will being logged into the domain with admin rights suffice?
 
Make sure you are executing this from an administrative command prompt that was "runas" an account that is an admin on both boxes.

I have sometimes have better luck using the admin shares IE

Code: 
robocopy \\server1\d$\thesource \\server2\e$\thedestination *.* /s /e /COPYALL /r:1 /w:1 /MIR /TEE /MT:8 /LOG C:\somedir\logfile.txt
 
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