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Windows 7: Copy (backup) from drive a to b "there is not enough space"

14 May 2012   #1

7 home premium 64bit
 
 
Copy (backup) from drive a to b "there is not enough space"

Last night I was copying 2.75tb from drive A to B, I let it run all night came back in the morning and it was froze up 99% of the way through the copy. So I scanned B, rebooted and tried to copy the remaining 55gb but I got the error "there is not enough space on B" I have 800gb available on B, and although I had 2.75tb of files selected (from A) my intent was to opt to "skip" all the existing files on B which would have left me with about 16 times as much space as I needed to complete the operation.

Windows is assuming that all the files I am copying are new unique files (2.75tb of them) and I won't be "skipping" 99% of those files I have selected for the operation & because I only have 800gb free I won't have enough space.


Any suggestions how I can get around this problem?

thanks
Robert Christ


My System SpecsSystem Spec
.

16 May 2012   #2

7 home premium 64bit
 
 

Well I kinda solved it, Because I had 800gb free on the target drive I systematically selected small sections of the 2.75tb source drive for copying that were smaller than the 800gb free on the target drive.

I like the feature warning you that the selected files are larger than the target device but apparently Microsoft engineers never considered the problem I came up against that although the files I had selected were larger than the available space on the target device many of them would have been canceled out by the existing identical files already on it.
Robert Christ
My System SpecsSystem Spec
Reply

 Copy (backup) from drive a to b "there is not enough space"




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