Excercise 7: Restoring Lost Data with Stager¶

To give an example on how you might analyze data on the HPC Cluster, let’s analyze the data we ‘collected’ earlier using the MakeDataUp.m program.

Since everyone needs to be able to analyze the data, however, let’s first duplicate the files in the /project/3010000.05/raw/ into a new folder that you can make changes to without affecting others’ work. Copy all of the directories in the /project/3010000.05/raw/ folder. Now, navigate to the /project/3010000.05/data/ folder and create a new folder with your DCCN username. Open the /project/3010000.05/data/firlas/ folder and paste the contents of the /project/3010000.05/raw/ folder.

Check for data loss between subjects number 1 to 10

Open Applications and go to File Explorer in the dropdown menu
At the file directory where it says /home/groupname/firlas/, replace it with /project/3010000.05/data/firlas/
Notice that there are no folders for sub-002, sub-005, and sub-006 - this data has been accidentally deleted

Establish a Network Connection to Trigon (either eduVPN or hardwired)
Go to https://stager.dccn.nl
Log in to the Stager service

Input your DCCN username in the following format firlas@dccn.nl and your DCCN password in the fields under the Project Storage section
Input your RU username in the following format u1234567@ru.nl and your RU password in the fields under the Donders Repository section

Select the Donders Repository directories to download

Double-click on dccn on the Donders Repository Side
Double-click on DAC_3010000.05_873 on the Donders Repository Side
Double-click on data on the Donders Repository Side
Check the boxes next to the sub-002, sub-005, and sub-006 directories

Select the Project Storage directory to download the data into

Double-click on the 3010000.05/ directory on the Project Storage side
Double-click on the data directory on the Project Storage side
Check the box next to your firlas directory on the Project Storage side

Press the Download button