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What is the fastest way to move data from one volume to another?

Question asked by stefanpapp on Jul 27, 2018
Latest reply on Jul 30, 2018 by MichaelSegel

I want to move data from one volume to another. The folders and file sizes vary. Files can be up to 100 GB, but we can have also a lot of small files. If there is data in the destination volume at that particular folder, it can be overwritten.

So far, I tried (Code has been simplified for demonstration purposes)

   (1)for root, directories, files in os.walk(src):         for file in files:             mv -v <src> <dest>     (2)hadoop distcp -overwrite -m100 <src> <dest>

Less than 10 GB, the mv option is faster. At 10 GB both options take approx 2 minutes transfer time.

Is there a faster way?


 mapr-fs .