In progress - Scheduled maintenance will take place on the 22th of June 2026. We will provide updates as necessary.
Jun 15, 2026 - 15:30 NZST
Jun 15, 2026 - 15:30 NZST
Scheduled - On 22 June 2026, at 3:30pm, we will be renaming our Globus endpoint and mapped collections to reflect our organisational name change from NeSI to REANNZ.
This is a change in name only. The endpoint and mapped collection UIDs will not change so there will be no impact to bookmarked links, transfers in progress, or other automated workflows that connect to these components.
The new names will replace the “NeSI” prefix with a “REANNZ” prefix and include the name of the storage endpoint where the datasets are hosted and managed. For example:
NeSI HPC Storage will change to be REANNZ Mahuika
NeSI Freezer will change to be REANNZ Freezer
If you have any questions about this upcoming change, please contact support@nesi.org.nz.
Jun 15, 2026 15:30 - Jun 29, 2026 15:30 NZST
This is a change in name only. The endpoint and mapped collection UIDs will not change so there will be no impact to bookmarked links, transfers in progress, or other automated workflows that connect to these components.
The new names will replace the “NeSI” prefix with a “REANNZ” prefix and include the name of the storage endpoint where the datasets are hosted and managed. For example:
NeSI HPC Storage will change to be REANNZ Mahuika
NeSI Freezer will change to be REANNZ Freezer
If you have any questions about this upcoming change, please contact support@nesi.org.nz.
Jun 15, 2026 15:30 - Jun 29, 2026 15:30 NZST
Security Update: Mitigation of ssh-keysign Vulnerability & Impact on Debugging/Profiling Tools
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Monitoring - Summary:
We have successfully deployed a system-wide mitigation across the Mahuika environment to address the recently disclosed ssh-keysign vulnerability. While the cluster remains fully operational and secure, the security measures implemented may affect certain user workflows, specifically those relying on system call tracing and process debugging.
What You Need to Know (User Impact):
To effectively neutralize this vulnerability, we have implemented strict restrictions on ptrace capabilities across the environment (including on compute nodes).
If your research or development workflow involves attaching to running processes, you will likely experience permission errors (e.g., Operation not permitted).
Potentially Affected Tools:
• Debuggers: gdb, Arm Forge (DDT), TotalView, or attaching to processes via IDEs.
• System Tracers: strace, ltrace.
• Performance Profilers: Intel VTune, Valgrind, Linux perf, and various MPI profiling utilities that rely on ptrace to hook into active jobs.
Note on Standard Execution:
Running a program directly under a debugger (e.g., gdb ./my_program) may still work depending on the exact scope of the applied kernel restrictions, but attaching to an already running process (e.g., gdb -p ) will be blocked.
Next Steps & Support:
For now we have implemented the strictest mitigation and will evaluate this further next week. We understand that process profiling and debugging are critical components of HPC development. If this mitigation breaks an essential part of your workflow, please contact the support team. We can discuss alternative profiling methods. Thank you for your cooperation as we work to maintain a secure environment for all users.
May 16, 2026 - 12:59 NZST
We have successfully deployed a system-wide mitigation across the Mahuika environment to address the recently disclosed ssh-keysign vulnerability. While the cluster remains fully operational and secure, the security measures implemented may affect certain user workflows, specifically those relying on system call tracing and process debugging.
What You Need to Know (User Impact):
To effectively neutralize this vulnerability, we have implemented strict restrictions on ptrace capabilities across the environment (including on compute nodes).
If your research or development workflow involves attaching to running processes, you will likely experience permission errors (e.g., Operation not permitted).
Potentially Affected Tools:
• Debuggers: gdb, Arm Forge (DDT), TotalView, or attaching to processes via IDEs.
• System Tracers: strace, ltrace.
• Performance Profilers: Intel VTune, Valgrind, Linux perf, and various MPI profiling utilities that rely on ptrace to hook into active jobs.
Note on Standard Execution:
Running a program directly under a debugger (e.g., gdb ./my_program) may still work depending on the exact scope of the applied kernel restrictions, but attaching to an already running process (e.g., gdb -p ) will be blocked.
Next Steps & Support:
For now we have implemented the strictest mitigation and will evaluate this further next week. We understand that process profiling and debugging are critical components of HPC development. If this mitigation breaks an essential part of your workflow, please contact the support team. We can discuss alternative profiling methods. Thank you for your cooperation as we work to maintain a secure environment for all users.
May 16, 2026 - 12:59 NZST
About This Site
This page shares the system status of REANNZ's advanced computing platform and storage services, including impacts of any known outages or planned maintenance work.
Please note that these services are currently only supported within business hours, so there may be delays in communicating outages outside of these hours despite best efforts.
To view the status of REANNZ's network services, visit: https://reannz.status.io
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Scheduled Maintenance
Announcement - Flexible High Performance Cloud - Update Servers for 'CopyFail' & 'DirtyFrag' Mitigations May 12, 2026 16:15 - May 19, 2026 16:15 NZST
Because the security world loves catchy names almost as much as it loves ruining a perfectly good week, we have two new vulnerabilities to bring to your attention: CopyFail and DirtyFrag. While they sound like a forgotten 90s hacker movie duo, they are very real, and your cloud servers need an update to stay secure.
How to Mitigate: Please update your Research Developer Cloud instances at your earliest convenience. You have two paths to a clean bill of health:
* The Fresh Start (New Images): We have already created and deployed shiny new, pre-patched images. You can simply spin up new instances using these mitigated images and migrate your workloads over.
* The Hands-On Approach (Patch In-Place): If you prefer to keep your current instances running, please apply the recommended OS-level updates and mitigations directly to your existing servers. See links to relevant information below.
Need a hand? If things go sideways during the update, or if you just need some assistance navigating the mitigations, our support team is ready to help. Please reach out to us!
Stay secure (and un-fragged),
REANNZ Advanced Computing Team
Copy Fail
* https://ubuntu.com/blog/copy-fail-vulnerability-fixes-available
* https://forums.rockylinux.org/t/copyfail-cve-2026-31431-patches-now-available-for-rocky-linux/20422
* https://access.redhat.com/solutions/7141931
Dirty Frag
* https://ubuntu.com/blog/dirty-frag-linux-vulnerability-fixes-available
* https://forums.rockylinux.org/t/dirty-frag-exploit/20426
* https://access.redhat.com/security/vulnerabilities/RHSB-2026-003
Posted on May 12, 2026 - 16:06 NZST
How to Mitigate: Please update your Research Developer Cloud instances at your earliest convenience. You have two paths to a clean bill of health:
* The Fresh Start (New Images): We have already created and deployed shiny new, pre-patched images. You can simply spin up new instances using these mitigated images and migrate your workloads over.
* The Hands-On Approach (Patch In-Place): If you prefer to keep your current instances running, please apply the recommended OS-level updates and mitigations directly to your existing servers. See links to relevant information below.
Need a hand? If things go sideways during the update, or if you just need some assistance navigating the mitigations, our support team is ready to help. Please reach out to us!
Stay secure (and un-fragged),
REANNZ Advanced Computing Team
Copy Fail
* https://ubuntu.com/blog/copy-fail-vulnerability-fixes-available
* https://forums.rockylinux.org/t/copyfail-cve-2026-31431-patches-now-available-for-rocky-linux/20422
* https://access.redhat.com/solutions/7141931
Dirty Frag
* https://ubuntu.com/blog/dirty-frag-linux-vulnerability-fixes-available
* https://forums.rockylinux.org/t/dirty-frag-exploit/20426
* https://access.redhat.com/security/vulnerabilities/RHSB-2026-003
Posted on May 12, 2026 - 16:06 NZST
Identity provider system maintenance Jun 18, 2026 15:30-16:30 NZST
Update -
Upcoming access changes for REANNZ HPC services
We are strengthening access to REANNZ HPC services (Mahuika and OnDemand) by restricting login access to researchers who have appropriate compute allocations.
Researchers with Freezer-only allocations (tape storage) will no longer be able to log in to these systems. Instead, they should use the Globus Freezer mapped collection to transfer data to and from Freezer.
For further information, please check our documentation https://docs.nesi.org.nz/.
Jun 15, 2026 - 09:55 NZST
We are strengthening access to REANNZ HPC services (Mahuika and OnDemand) by restricting login access to researchers who have appropriate compute allocations.
Researchers with Freezer-only allocations (tape storage) will no longer be able to log in to these systems. Instead, they should use the Globus Freezer mapped collection to transfer data to and from Freezer.
For further information, please check our documentation https://docs.nesi.org.nz/.
Jun 15, 2026 - 09:55 NZST
Scheduled -
We will be undergoing scheduled maintenance during this time.
Jun 11, 2026 - 12:05 NZST
Jun 11, 2026 - 12:05 NZST