Transfer data from/to MARCC using Globus end points

The MARCC data transfer node (DTN) is connected to the ScienceDMZ via a 40 Gbps NIC. Globus manages the transfer from a remote server or the user’s workstation to MARCC making sure the transfer picks up after any interruptions and that the data arrives with integrity.

To start using Globus:
1 – Use your browser to connect to Globus. If you do not have an account you should request one at http://globus.org. It is free of charge.
login-globus

2 – Connect using your JHED userid and password
login-jhu

3 – You should get a window like this one:
transfer_files3

4 – Select or type MARCC on one side and your data source on the other (“jhuidies#dmztest” for this example)
Use your authentication credentials. You do not need the Two Factor Authentication for MARCC, just your userid and password. You will get a screen like this one:

transfer_files4

5 – Change directories as appropriate, select the files to transfer (see below) and then click on the highlighted “arrow”

transfer_files5

Un-select (unclick) “verify file integrity”. This process will take much longer. Use it only if necessary.

You can also label the transfer by using the “Label This Transfer” so you can better identify it.

6 – The file transfer should start within a few seconds/minutes.

7 – You can check the status by clicking on “Activity” top of the window:

transfer_files6

Click on the label, you will see progress or if the transfer is complete. An email will be sent to your account when the transfer is complete.

Troubleshooting

It is a known issue that Globus transfers will not work using Hopkins Wifi, please leverage a wired network or alternative networks.  if you try it you will see a message:

[ssh stderr] ssh: connect to host relay.globusonline.org port 2223: Connection refused