Copy external HDD to another
My current Seagate 4TB external HDD is full, and I want to transfer the contents to a 6TB external HDD. And I want to be able to validate the data transferred is correct
Both drives are formatted in NTFS and some movie files are 9GB size.
What would be the best way to do this? Does ATI 2020 have a tool to do this ?
Thanks for your great support


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I purchased TeraCopy Pro, but found it only copied folders and files, not whole disks. So I used the Clone feature of ATI2020, took nearly 6 hours.
To validate, I used Beyond Compare 4, which compares the size of each of the files on the disks instantly. They all had exactly the same size.
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Jill, check that your target disk drive for the clone has been automatically sized to use the extra free space on the larger drive.
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However, I see Teracopy pro and Beyond Compare are exactly what you need in your case, Gs Richcopy 360 never fail with me in such a situation if I need to be sure that the source is exactly the destination, I use a feature called "byte-level replication", this option should compare the source and the destination, and ensure that both are the same by transferring every change happens in the source to the destination.
For example, if you have the source text and destination text, both contains (a, b, c), then the source text is updated to (a, b, c, d), after running the " byte-level replication ", (d) only will be transferred to the destination text, not the whole text file, and it should be similar to the source text file(a, b, c, d).
So what I am suggesting using this tool, is to mirror the source to the destination the run the " byte-level replication" feature.
That is what I do if I need to be sure that the transfer is correct,
Also, I think all these tools have nice-looking logs that should inform you if there is any failure.
Thank you
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