Posts tagged maintenance

Rolling system updates

Warning On Tuesday June 15 at 20:00 the login nodes will be unavailable for 30 minutes.

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Hydra storage maintenance scheduled on 26/11

The maintenance on the storage is done and jobs are again running as normal. We are still busy with (automatically) updating all worker nodes. Until that is done, the queuing time will be slightly longer than normal.

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Hydra maintenance scheduled on 29/08

Due to maintenance work, it will not be possible to submit new jobs or view the status of submitted jobs on Saturday 29/8 between 20:00 and 23:00. Running jobs will not be impacted.

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Electricity works on the cooling system

From 2 to 3 June 2020, works on an electric board of the SISC cooling system will be conducted. The operations will require to stop the cooling system for short periods of time. The computing power of the HPC clusters Hydra and Vega will be reduced to a minimal level to avoid heat problems in the data center. Therefore, waiting time for jobs in the queue will be higher then normal.

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Hydra security hardening

Due to the recent wave of cyberattacks on HPC centers throughout Europe, the SISC HPC team will take security hardening measures on Hydra, in consultation with the VSC.

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Hydra storage maintenance scheduled on 18/05

There are a couple of hardware issues with the Hydra storage which we cannot safely fix while the cluster is running. We are going to shut down Hydra on Monday 18 May, starting at 09:00 to perform the needed repairs. We expect that we can resume normal operations by the late afternoon.

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Hydra network maintenance scheduled on 20/04

The network issues are fixed. Everything is back to normal.

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