Account Administration

Important

In the summer/fall of 2025, Delta is transitioning from a RedHat 8 based OS stack to a RedHat 9 based OS stack. During the transition, some nodes will have the “old” RH8 stack, while some nodes will have the new RH9 stack.

There are two different versions of the documentation while this is going on. You are currently looking at pages for the new RH9 stack. For documentation on the old RH8 stack, go to the Red Hat 8 page.

Management Tools

ACCESS projects use the ACCESS user portal for project and account management.

Non-ACCESS project and account management, such as adding someone to a project, is handled by NCSA group management tools. For more information, go to Group/Project Member Management.

Reset Your Password

For instructions on how to reset the NCSA password that you use to log in to Delta, go to Manage Your NCSA Identity - Reset Your Password.

Configuring Your Account

Bash is the default shell. To change the default shell, submit a support request.

Allocations

The majority of Delta is allocated through ACCESS and is the preferred path to getting compute time on Delta. A portion of the Delta system is also available to Illinois researchers, primarily to fill needs not met by the ACCESS program. See the Delta Allocations page to learn more, including how to submit allocation requests.

Allocation Policies

ACCESS awarded projects and allocations should receive periodic messages regarding approaching project expiration.

  • An ACCESS project is marked for inactivation once it has no valid resource allocation on the system.

  • Current ACCESS policy is for user access to be removed if a user is not a member of any active project on Delta.

  • Delta does NOT allow storage only allocations, all user accounts must be on an active compute resource allocation. All Delta storage resources are intended for data in active use. Delta does not provide storage resources for archiving data or other long-term storage.

Please see the new ACCESS Eligibility Policies page for information on Email and Organization requirements.

Please see the new User Restrictions page for new guidance to comply with updated NSF policy.

Illinois awarded projects and allocations currently do not receive periodic messages regarding approaching project expiration.

  • Manual notifications are being provided, as needed.

  • The Delta Project office is working on a process for notifications, and project and account inactivation based on expiration dates.

There is a 30-day grace period for expired Delta projects to allow for data management access only.

Allocation Supplements and Extensions

Request resource allocation supplements (CPU or GPU compute) and date extensions via the appropriate XRAS website:

To request a storage quota increase, submit a support request. In the request include:

  • A detailed justification for the size of the increase.

  • How long you need the increase.

Keep in mind that Delta is storage constrained and can only provide storage for data in active use by computations on the system.