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[https://www.globus.org/ Globus] is a fast, reliable, high-performance service for secure data movement. Designed specifically for researchers, Globus has an easy-to-use interface with background monitoring features that automate the management of file transfers between any two resources, whether they are at Compute Canada, another supercomputing facility, a campus cluster, lab server, desktop or laptop.
[https://www.globus.org/ Globus] is a service for fast, reliable, secure data movement. Designed specifically for researchers, Globus has an easy-to-use interface with background monitoring features that automate the management of file transfers between any two resources, whether they are at Compute Canada, another supercomputing facility, a campus cluster, lab server, desktop or laptop.


Globus leverages GridFTP for its transfer protocol but shields the end user from complex and time consuming tasks related to GridFTP and other aspects of data movement. It significantly improves transfer performance by auto tuning the transfer settings, thereby reducing the time spent managing transfers. It also provides other features such as automatic restarts for interrupted transfers and file integrity checking.
Globus leverages GridFTP for its transfer protocol but shields the end user from complex and time consuming tasks related to GridFTP and other aspects of data movement. It improves transfer performance over GridFTP, rsync, scp, and sftp, by automatically tuning transfer settings, restarting interrupted transfers, and checking file integrity.


Globus can be accessed via the main [https://www.globus.org/ Globus website] or via the Compute Canada Globus portal at [https://globus.computecanada.ca https://globus.computecanada.ca].
Globus can be accessed via the main [https://www.globus.org/ Globus website] or via the Compute Canada Globus portal at [https://globus.computecanada.ca https://globus.computecanada.ca].
== Getting Access to Globus ==
Globus is a third-party service used by Compute Canada. To start using Globus, you must first sign up for an account on the [https://www.globus.org/SignUp Globus Sign Up page].
{{To Do|IMAGE HERE, and new process since 2016 Feb 13?}}
Once the account is set up, it can be used to transfer information to/from Compute Canada systems. Note that Globus is hosted in the Amazon Cloud and managed by the University of Chicago, so your login information, including your account name, email address, and real name, will be stored in the United States.


== Using Globus ==
== Using Globus ==
Go to [http://globus.computecanada.ca http://globus.computecanada.ca]. Your "existing organizational login" is your CCDB account. Ensure that "Compute Canada" is selected in the drop-down, then click Continue. Supply your CCDB username and password on the Compute Canada MyProxy page which appears.


Globus can be used for moving data between any two resources, whether it is a small number of very large (even terabyte-sized) files or a very large number of small files.
=== To Start a Transfer ===
[[File:Globus-Select-Endpoint.png|400px|thumb| Selecting a Globus endpoint. (Click for larger image.)]]


=== To Start a Transfer ===
(1) If the "Transfer Files" page is not already showing (see image), select it from the "Manage Data" menu.
(1) Log in to [http://globus.computecanada.ca http://globus.computecanada.ca], if you are not already.  Select the "Transfer Files" option from the "Manage Data" menu.


[[File:Globus-Select-Endpoint.png|400px|thumb| Selecting a Globus endpoint. (Click for larger image.)]]
(2) Select a site in the "Endpoint" field. You may browse the drop-down list or type the name into the Endpoint field to find the desired endpoint. All Compute Canada resource names are prefixed with <code>computecanada#</code>.
(2) Select the source endpoint in the "Endpoint" field. You may browse the drop-down list or type the name into the Endpoint field to find the desired endpoint. All Compute Canada resource names are prefixed with <code>computecanada#</code>.


You will be prompted to activate the endpoint. The appearance of this depends on which site is hosting the endpoint. For example, if you are activating the endpoint for Silo, which is in WestGrid, you will be asked for your WestGrid username and password. If you are unsure of how to proceed, check the site-specific documentation (links below):
You will be prompted to activate the endpoint. The appearance of this depends on which site is hosting the endpoint. For example, if you are activating the endpoint for Silo, which is in WestGrid, you will be asked for your WestGrid username and password. If you are unsure of how to proceed, check the site-specific documentation (links below):
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