Before sync'ing 1000 Genomes, you need to be logged in as gsa-dev:
% sudo -s -u gsa-dev
[Note that this step needs to be done before subsequent steps for stability]

To use Aspera, you'll need to ssh into one of the appropriate machines:
% ssh vbigtube or mirror

[The NCBI Aspera source is: anonftp@ftp-private.ncbi.nih.gov:/1000genomes/ftp/]