In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 2026 - 19:00 NZDT
Update - Noting the Flexi RDC will also be subject to the same impacts as listed above.
Sep 29, 2026 19:00 - Oct 1, 2026 19:00 NZDT
Scheduled - Our Openstack infrastructure, which backs Mahuika and associated services, is being upgraded by our third party support vendors, StackHPC. The upgrades will be implemented overnight commencing on the evening of Tuesday, Sep 29th, and continuing again overnight on Wed Sep 30th.
The Openstack dashboard, APIs, external network connections, and access to object storage may suffer brief (minutes) interruptions on both nights. Running Slurm jobs should be unaffected, but ssh connections to Mahuika may fail for brief periods.

Sep 29, 2026 19:00 - Oct 1, 2026 19:00 NZDT
Update - We are continuing to investigate an issue with our filesystems which is causing this slow down. For the moment Slurm job submission remains available but we have suspended any new jobs from actually starting. We will reinstated jobs starting as soon as we are able to
Sep 29, 2026 - 14:46 NZDT
Update - New jobs can still be submitted to Mahuika. However, no new jobs will begin to run on Mahuika at this time.
Sep 29, 2026 - 14:44 NZDT
Update - We are continuing to investigate this issue.
Sep 29, 2026 - 14:43 NZDT
Update - We are continuing to investigate this issue.
Sep 29, 2026 - 14:26 NZDT
Investigating - We are currently experiencing filesystem performance issues on Mahuika, including the login node which users may find is running slowly at this time. Users may have trouble accessing Mahuika at all, or find other tools that use Mahuika not working. We are currently investigating the cause.
Sep 29, 2026 - 14:18 NZDT
Monitoring - Issues with the upgrade have now been resolved, but it is expected to continue at a slow pace for another 36 hours.
Sep 23, 2026 - 10:00 NZST
Identified - The overnight upgrade of the Ceph Storage cluster has taken longer that expected and resulted in longer than expected loss of access to parts of the storage system. RDC Object store and WEKA are affected. Suppliers are working on the issue.
Sep 23, 2026 - 08:17 NZST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 21, 2026 - 11:00 NZST
Scheduled - We will be upgrading aspects of our authentication mechanism on Monday, Sep 21st from 11am. New sessions to Mahuika, Ondemand, Globus, and Mynesi may experience issues logging in for up to two hours. Existing sessions, and Slurm jobs, will remain unaffected
Sep 21, 2026 11:00-13:00 NZST
Update - We are continuing to monitor for any further issues.
Sep 04, 2026 - 16:19 NZST
Monitoring - Thank you for your patience while we’ve worked to bring Freezer back online. As part of our recovery from the Tamaki Data Centre’s cooling failure incident on 29 July, we have now completed comprehensive testing of our tape library and tape media. Our results indicate that the tapes are healthy.

Freezer is now available for use.

We encourage you to contact support@nesi.org.nz if you notice anything out of the ordinary or have concerns about your data.

We will continue to monitor Freezer as usage levels return to normal.

Sep 04, 2026 - 16:07 NZST
Update - We are working with our vendors to test the health of our tape library and tape media following the cooling incident at the TDC. We will provide updates to project leaders on the status of your data once known, but we expect this may take some time. Further updates may be provided as we work through this process. Our apologies for any concern or inconvenience this might cause.
Aug 11, 2026 - 08:57 NZST
Investigating - Following the cooling incident at Tāmaki Data Centre (https://status.nesi.org.nz/incidents/yznlzzntjgpp) we are performing thorough health checks on the tape media used for Freezer storage.

As of now we do not have a timeline for the restoration of the Freezer storage service, but we will provide updates when we have sufficient information.

Aug 03, 2026 - 12:47 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

Apply for Access Under Maintenance
Data Transfer Degraded Performance
Submit new HPC Jobs Degraded Performance
Jobs running on HPC Major Outage
NeSI OnDemand Under Maintenance
HPC Storage Under Maintenance
User Support System Operational
Support Documentation Operational
Flexible High Performance Cloud Under Maintenance
Long-term Storage (Freezer) Operational
Flexible High Performance Cloud Services Under Maintenance
Virtual Compute Service Operational
Bare Metal Compute Service Operational
FlexiHPC Dashboard (web interface) Under Maintenance
FlexiHPC CLI interface Under Maintenance
Public API of the FlexiHPC Service Under Maintenance
Login to Mahuika Under Maintenance
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

Sep 29, 2026

Completed - The scheduled maintenance has been completed. If you have any issues logging in to our systems with your ESNZ email, please contact support@nesi.org.nz.
Sep 29, 14:25 NZDT
In progress - Scheduled maintenance is in progress. We expect this change to take at least two hours. We’ll update this notice once the maintenance is complete.
Sep 29, 10:54 NZDT
Update - We will be undergoing scheduled maintenance during this time.
Sep 17, 09:28 NZST
Scheduled - Scheduled – On 29 September at 11:00 am
We will be updating REANNZ HPC services login configuration for some Earth Science New Zealand (ESNZ) users. We have contacted these users by email in advance. During this maintenance window, ESNZ users will be unable to login to my.nesi.org.nz, Mahuika or OnDemand.  

Jobs will not be affected and anything queued or currently running will continue as normal. We’ll update this notice once the maintenance is complete.

If you have questions, contact support@nesi.org.nz.

Sep 17, 08:51 NZST

Sep 28, 2026

No incidents reported.

Sep 27, 2026

No incidents reported.

Sep 26, 2026

No incidents reported.

Sep 25, 2026

No incidents reported.

Sep 24, 2026

No incidents reported.

Sep 23, 2026

Unresolved incident: Ceph Storage Cluster Upgrade.

Sep 22, 2026

No incidents reported.

Sep 21, 2026

Unresolved incident: Keycloak authentication component changes.

Sep 20, 2026

No incidents reported.

Sep 19, 2026

No incidents reported.

Sep 18, 2026

No incidents reported.

Sep 17, 2026

No incidents reported.

Sep 16, 2026

No incidents reported.

Sep 15, 2026

No incidents reported.