Hydra scratch flash storage upgrade on 19 December 2023

Updated on 19/12/2022

The scheduler is again running, jobs are starting again. Unfortunately, we’ve not been able to complete the flash storage upgrade as some necessary hardware components are missing. We’ll announce another upgrade moment once all hardware is available.

On 19 December 2023 between 10:00-17:00, we will extend the flash part of the scratch storage in Hydra. During the upgrade, we will stop the scheduler to avoid putting load on the storage, and the performance of the scratch will be decreased. Running jobs will continue to run, and jobs in queue will remain queued.

The scratch in Hydra is a hybrid flash storage system, which combines both traditional hard disk drives (HDDs) and solid-state drives (SSDs), providing a balanced and cost-effective solution that meets both performance and capacity requirements.

During the upgrade, the capacity of the flash storage will be doubled, which should give the scratch a nice performance boost.

Feel free to contact us at VUB-HPC Support with any comments or questions.