====== Using Globus on DARWIN ======

===== Overview =====

Unlike Globus on the Caviness cluster, Globus on the DARWIN cluster does not require a staging area and features two distinct collections 

  * one for University of Delaware users ("**UD DARWIN Cluster - Home and Lustre**") 
  * one for ACCESS users ("**ACCESS UD DARWIN**"). 

<WRAP center round important 60%>
There are no guest collections enabled on DARWIN.
</WRAP>

===== Accessing the collection =====
Start by navigating to the [[http://app.globus.org/|Globus web application]] ([[http://app.globus.org/]]) in your web browser.  If you have previously logged-in, you will be taken directly to the dashboard.  Otherwise:
  * Choose the **University of Delaware** as your organization and click the Continue button; on the next page enter your UDelNet Id and Password and continue on to the dashboard.

Click the “File Manager” button {{:software:globus:filemanagerbutton.jpg}} on the left side-panel.  In the search box at the top of the page, enter "UD DARWIN" and click the magnifying glass icon:

{{:software:globus:darwin-filemanager.jpg}}

Depending on your account type, ACCESS or UD allocation, click on one of the corresponding collections, "**ACCESS UD DARWIN**" or "**UD DARWIN Cluster - Home and Lustre**" 
Upon successful activation the collection, you should see the two primary directories listed: "home" and "lustre":

{{:software:globus:darwin-udcollection.jpg}}

=== Getting files off DARWIN ===
  * Files will be visible on your Globus endpoint, if they are in the "home" (''$HOME'') and "workgroup" (''$WORKDIR'') directories.
  * For group projects, make sure files are located within the appropriate workgroup directory to ensure they are accessible by members of that workgroup via Globus.

=== Moving data to DARWIN ===
  * Files copied to "home" (''$HOME'') or "workgroup" (''$WORKDIR'') directories via Globus will be directly accessible on the DARWINcluster.

<WRAP center round important 60%>
**PLEASE BE AWARE** that all data moved to Darwin will be consuming storage space either on a user’s home or their group’s storage quota. Users are responsible for managing their data storage to avoid reaching capacity. 
</WRAP>

===== Finding your directories =====

You can find your uid number using the ''id'' command:
<code bash>
$ id -u
1001
</code>

Your directories can be found at ''/home/<uid#>'' or ''/lustre/<workgroup_name>/users/<uid#>''.