User Updates

This is a reminder that, as part of the construction of the NSF Leadership Class Computing Facility, the hardware underlying the TACC "Ranch" tape archive system is being replaced. This new Ranch system allows us to expand the capacity of the archive to an exabyte and beyond over the next several year. If there is data in the archive that you wish to keep on the new system, you will need to move it to the new hardware.Please carefully review the message below for important information on timelines, where to find your old data, where to write you new data, and directions on migrating:TimelineSeptember 30th, 2025: New Ranch hardware became available to general usersNovember 1st, 2026: End of Service (EOS), Old Ranch hardware will be removed from service.To be clear, you, or someone on your project, will need to migrate your data from the OldRanchData directory (a read-only mount of the old Ranch system) to your new directory, or project space. Data that is not copied to the new Ranch space WILL NOT be available after the end of 2026. For detailed instructions on what users need to do, please view our migration guide here: https://docs.tacc.utexas.edu/hpc/ranch-migration-2025/For very large data migrations (>= 1PB) or other special use cases, please contact the support team for assistance: https://tacc.utexas.edu/portal/ticketsWe are halfway through the migration period, so, if you haven't started migrating data, please start as soon as is convenient.

TACC's production PrivacyIdea (pidea01.tacc.utexas.edu) will be unavailable for maintenance.  This will effectively make all logins unusable from 6:00PM to 8:00PM Thursday, February 19.

The TACC VPN infrastructure will be taken down for maintenance from 7PM to 9PM on Thursday, January 15th. VPN maintenance will be performed during this time.

TACC is updating its account policies concerning institutional affiliation and email address requirements. These changes align with NSF guidance and ensure compliance with federal funding requirements. Beginning 1/6/2026, all users will be required to have an approved institutional affiliation with an associated email address. For example, if you are affiliated with The University of Texas at Austin, you will need to have a utexas.edu email address associated with your account. Generic domains such as gmail.com, yahoo.com, or qq.com are prohibited. Accounts with these types of domains will be deactivated and users will be required to login to https://accounts.tacc.utexas.edu with their current TACC username and password to update their email address and institution. If you run into an issues while updating your account, please feel free to submit a ticket here: https://tacc.utexas.edu/about/help/. Thanks, The TACC Accounts Team

The Ranch archive system (both new and old) will be unavailable on Sunday, January 4th at 8PM until Monday, January 5th at 5PM, due to power work that is taking place on the building that houses the old tape library system(The Commons Building)

TACC will be observing the University Winter Break schedule and be operating with essential personnel only from December 23rd - January 4th. During this time, allocation requests, account requests, and tickets will not be reviewed or processed. All services will resume normal operations on January 5th.We wish you all a wonderful holiday season and look forward to working with you in the new year! Thank you, The TACC Team 

Texascale Days allows participating researchers the space and time to compute some of their biggest data and consult with our experts on benchmarking and optimizations. The Vista GH nodes will be reserved for Texascale Days - large scale runs of at least half system size (up to 256 nodes) or full system size (up to 512 nodes) during the third week of December.  This Texascale Days event will only support benchmarking runs, 2 - 4 hours in length, not production runs. This event allows our researchers the opportunity to work on problems that may not be possible at a smaller scale. To be eligible to participate on Vista, your application must have already successfully run on at least 64 GH nodes on Vista.To request to participate, please fill out and submit the form before end of business December 10.Link to form: https://forms.gle/mfxQtUPLv1rfLE5w9Please submit any questions you may have through the TACC ticketing system or feedback form.https://tacc.utexas.edu/portal/tickets

Texascale Days allows participating researchers the space and time to compute some of their biggest data and consult with our experts on benchmarking and optimizations. The Vista GH nodes will be reserved for Texascale Days - large scale runs of at least half system size (up to 256 nodes) or full system size (up to 512 nodes) during the third week of December.  This Texascale Days event will only support benchmarking runs, 2 - 4 hours in length, not production runs. This event allows our researchers the opportunity to work on problems that may not be possible at a smaller scale. To be eligible to participate on Vista, your application must have already successfully run on at least 64 GH nodes on Vista.To request to participate, please fill out and submit the form before end of business December 10.Link to form: https://forms.gle/mfxQtUPLv1rfLE5w9Please submit any questions you may have through the TACC ticketing system or feedback form.https://tacc.utexas.edu/portal/tickets

TACC PROJECTS, ALLOCATIONS, AND ACCOUNTS SYSTEM MAINTENANCE November 4, 9AM - 1PM CentralDuring this maintenance, the underlying services for TACC projects, allocations, and user accounts will be unavailable.Users will be unable to make any changes to the following during this time: *Creating new projects *Modifying existing allocations *Updating account or user profilesTACC compute resources and login services will otherwise remain operational. Please plan any necessary account or project updates before or after the designated maintenance time.Due to changes in TACC security policy, you may be required to update your TACC account profile.

October 14, 2025 9AM - 11AM CentralDuring this maintenance window, the underlying services for TACC projects, allocations, and user accounts will be unavailable.   Users will be unable to make any changes to the following during this time:    Creating new projects Modifying existing allocations Updating account or user profiles   TACC compute resources and login services will otherwise remain operational. Please plan any necessary account or project updates before or after the designated maintenance time.   Please submit any questions you may have via the TACC User Portal: https://tacc.utexas.edu/portal/tickets