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Accessing LSS Shares from IDAS

Accessing LSS Shares from IDAS

    On this page:

    Introduction

    What is LSS?

    Can I use LSS with IDAS?

     

    This article provides general information about LSS shares, with the goal of aiding IDAS users who want to use LSS with IDAS for their research. Certain LSS shares might have more complicated configurations. If you have questions, please https://research.its.uiowa.edu/contact-us.

    Accessing LSS shares from the research instance in IDAS

    1. Log in to the IDAS research instance. When you log in, you can choose to mount your LSS share. Please see step 6e in this article for more details: Accessing IDAS for Research Use | Logging in to the Research instance on IDAS

     

    2. After your IDAS session has started, the contents of the LSS share will be available in the LSS folder in your IDAS home directory.

    View from JupyterLab:

    LSS folder in IDAS

    Double click on the LSS folder to open it. In this example, the LSS share grudderham is mounted as a folder inside the LSS folder.

    grudderham LSS share in JupyterLab

     

    View from RStudio:

    LSS folder in RStudio

    Click on the LSS folder to open it. In this example, the LSS share grudderham is mounted as a folder inside the LSS folder.

    grudderham LSS share in RStudio

     

    3. If you want to access the contents of the LSS share from the command line or in your code in IDAS, the path is:

     ~/LSS/share-name

     where ~ denotes your IDAS home directory, and share-name is the name of your LSS share.

     

    For example, you can use Python code to read the test.csv file in the LSS share grudderham, mounted in IDAS, as below:

    import pandas as pd df = pd.read_csv("~/LSS/grudderham/test.csv")

     

    Checking LSS storage usage on IDAS

    To check how much LSS storage is available on IDAS, follow the following steps:

    1. Open the Terminal in IDAS

    • If you are using JupyterLab, click the Terminal tile under Other in your JupyterLab page:

    image-20251021-180854.png
    Terminal in JupyterLab

     

    • If you are using RStudio, click on the Terminal tab, which is next to the Console tab in RStudio:

    image-20251021-181116.png
    Terminal in RStudio

     

    2. In the Terminal, run the following command:

    df -h ~/LSS/share-name

    where share-name is the name of your LSS share.

    For example, the following output shows that the LSS share grudderham has a quota of 1TB. Of the quota, 3.4GB is used, and 1021GB is available:

    grudderham@idas-research-grudderham:~$ df -h ~/LSS/grudderham Filesystem Size Used Avail Use% Mounted on .../Shared/grudderham 1.0T 3.4G 1021G 1% /home/grudderham/LSS/grudderham

    FAQs

    How do I use LSS with IDAS?

    • If you have access to an LSS share, you can mount your LSS share in your IDAS research session.

    • After logging in to IDAS, the contents of your LSS share will be available in the LSS folder in IDAS.

    • You can use your LSS share and IDAS account in several possible ways, such as:

      • You can store your research data in your LSS share and use the computing tools in IDAS to analyze your data.

      • After using IDAS to work with your research data, you can store analysis results in your LSS share.

      • You can mount your LSS share on your local computer. After your LSS share has been mounted on your computer, you can move files from your LSS share to other folders on your computer as needed.

     

    Do I have to request that my LSS share be accessible from IDAS?

    Have you been accessing your LSS share from IDAS successfully? If yes, no further action is needed from you. Are you interested in requesting a new LSS share? When you request a new LSS share, one of the questions in the form is “Will this volume be accessed from HPC/Argon or the Interactive Data Analytics Service (IDAS)?”. If you want your LSS share to be accessible from IDAS, please select “Yes”. If you have an existing LSS share, and you are not sure whether it is accessible from IDAS, you can check in a number of ways: Did you fill out a Workflow form to request that LSS share previously? If yes: Log in to Workflow: https://workflow.uiowa.edu/inbox Under My Inbox, click My Initiated Packages. This will display a list of Workflow forms that you have filled out. Find the Workflow form titled “Large Scale Storage (LSS) Request”. Click on the form to open it. Read through the form to see if you previously requested your LSS share to be accessible from IDAS. Are you given access to the LSS share, but you are not the owner of that LSS share? If so: Please ask the owner of the LSS share if they previously requested the LSS share to be accessible from IDAS. If you are still unsure, please .

    Contact

    If you have any questions or comments, please https://research.its.uiowa.edu/contact-us.