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At 10:00 a.m. on Monday 28 May, we plan on shutting down the NeSI cluster (Pan) for scheduled maintenance. The shutdown period is expected to last for up to 24 hours. Normal operations should resume by 10:00 a.m. on Tuesday 29 May.

During this time, no cluster services will be available, including login and access to saved data. Any jobs that are still running at the start of the maintenance period will be terminated.

System upgrade

We will be taking the opportunity to upgrade the operating system on Pan, from Red Hat Enterprise Linux (RHEL) 5 to RHEL 6. This upgrade will provide a more stable and secure computing environment, with better support for new research applications. It may, however, affect some programs that were built under RHEL 5. If your program starts behaving strangely, please contact us for assistance.

Data storage

At the same time, we will introduce data storage quotas. Most users will have an initial disk quota of 30 GB. If we have already agreed to provide you, or your group or institution, with additional storage, you will receive a higher quota at the outset. Extra disk space is usually available on request.