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The GSL now uses a secure encrypted FTP server (FTPS not SFTP) for data transfer. You will receive an email regarding login information. Please use an FTP client (e.g., FileZilla) or FTP from the command-line (e.g., lftp) that supports explicit FTPS. You may allow for multiple parallel connections to speed up downloading. Basic instructions for FileZilla and command-line as well as troubleshooting suggestions are detailed below.

The GSL hosts data on our FTP server for 1 month following project completion. Raw data is kept on our live backup for 2 months following that, and can be reprocessed and hosted again upon request at no cost. Data more than 3 months old is moved to our magnetic tape archive and stored for 5 years. Please use this form (Data Retrieval Request) to request retrieval of data 3 months to 5 years old from our backup system. Retrieval incurs a 10 hour labor fee (~$1000)

Savio and Vector Users
Command-line lftp is the best option for transferring data to Berkeley’s computing cluster. You must be logged into a data transfer node ( and not a login node. See the Berkeley HPC user guide for further details.