Hi,
I've executed the prefetch command of SRA toolkit which is in my case supposed to call the Aspera ascp command line utility internally. My command line was:
/home/sratoolkit.2.10.0-ubuntu64/bin/prefetch -a "/home/.aspera/connect/bin/ascp|/home/.aspera/connect/etc/asperaweb_id_dsa.openssh" -O /home/Data -X 100000000 SRR6856355
However, in the log file i got :
2020-03-18T11:15:00 prefetch.2.10.0: 1) Downloading 'SRR6856357'...
2020-03-18T11:15:00 prefetch.2.10.0: Downloading via https...
2020-03-18T12:51:32 prefetch.2.10.0: https download succeed
It's seems that, prefetch does not use the Aspera ascp.
How can i turn on Aspera ascp to speed up the process?
1 answer
SRA data can no longer be downloaded via Aspera, see https://github.com/ncbi/sra-tools/issues/255
No, just wait and have coffee :) Still, the file SRR6856357 is not overly large, should actually not take a long time. I could download it with prefetch in little less than two minutes. Maybe you have a slow internet connection or massive I/O bottlenecks.
Search for the file with https://sra-explorer.info/ and then try the download links it provides. Maybe some work better.
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