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Quick Start Guide
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Secure File TransfersOn this page:
1. Introduction to Transferring Files from and to NERSCThere are a number of ways to transfer files. Small transfers can be done simply with scp or sftp. (Unencrypted ftp connections are not allowed into NERSC.) Larger file transfers will benefit from using more advanced and higher-performing file transfer methods like GridFTP or BBCP. If transferring files in and out of HPSS mass storage, the like HSI and HTAR tools offer good performance. 2. SCP and SFTPSCP and SFTP use the SSH authentication and encryption methods to transfer files. Because packets are ecrypted and decrypted, performance may not be acceptable for files of many GBs or TBs. For small files, SCP and SFTP are fast and convenient. An example scp session used to copy a file from Franklin to a local machine: % scp user_name@franklin.nersc.gov:myfile.txt . user_name's password: (password is entered here) % ls -l myfile.txt* -rw------- 1 user_name aaa 2368 Aug 11 17:06 myfile.txt 3. File Transfers using GridFTPNERSC provides a variety of Grid Services, including file transfers using GridFTP. GridFTP achieves good transfer rates and can be very useful for transferring files in non-interactive enviroments. 4. File Transfers using BBCP/BBFTPBBCP and BBFTP offer the secure authentication of SCP without the data encryption overhead. They are also multi-streamed, easy to use, and can achieve good transfer rates. See File Transfers using bbcp. 5. File Transfers using HSI/HTAR
An often suggested and simple way of transferring data is to use our NERSC |
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