Hi, I would like to download a large dataset from GigaScience. The FTP speed is a steady 70ko/s, and I have 20Gb of data to get.
I need to use Aspera, which I have installed and tested with the company demo. The Connect plugin (3.6) fails to work on Windows/Linux with Chrome/Firefox/Edge. I would rather try the ascp command line utility.
Question: how does it work? I have spent three hours reading various tutorials and tinkering. I have located the ascp program, its log files, and some other users command on the Internet.
All I get is "ascp: failed to authenticate, exiting.", and no log files. If you are familiar with ascp, could you please post the command line you are using? Did you generate some sort of SSH key for authentification?
PS: Please pretty please don't refer me to another post unless its solution really works 100% for you. There are lots of links to Aspera, a section in the GigaDB help page, but they are all terribly imprecise. GigaDB refers you to Aspera, which has rather esoteric usage examples.
PS: some sample commands from online posts and their ouput:
~/.aspera/connect/bin/ascp -v -P 3867 -Q firstname.lastname@example.org:/pub/10.5524/200001_201000/200001/rice3k/0001_1000/IRIS_313-10002/IRIS_313-10002_120220_I297_FCC0DJBACXX_L4_RICwdsRSYHSD24-3-IPAAPEK-84_2.fq.gz .
# Failure to authenticate
ascp -i aspera/connect/etc/asperaweb_id_dsa.openssh -Tr -Q -l 10M -L- email@example.com:vol1/ftp/release/20100804/ALL.2of4intersection.20100804.genotypes.vcf.gz ./
# Failure Event: -16 - Unable to open private key file ...
ERR [ascp] SSH authentication failed