Add --from-to option to azcopy command (#295)

* Add --from-to option to azcopy command as downloading turing-1b dataset is failing without this option.

* --from-to should only be added for azcopy.

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Co-authored-by: Martin Aumüller <[email protected]>

benchmark/dataset_io.py

@@ -61,6 +61,7 @@ def download_accelerated(src, dst, quiet=False, sas_string=""):
             cmd = f"azcopy copy {src} {dst}"
         else:
             cmd = f"azcopy copy '{src}?{sas_string}' '{dst}'"
+        cmd += " --from-to BlobLocal"
     else:
         cmd = f"axel --alternate -n 10 {src} -o {dst}"
         if quiet: