Planned HYDRA maintenance on September 25

[id : 302] [12/09/2017] [hits : 20692]

We have planned a downtime for HYDRA on September 25 that should last only a few hours. We have created a global reservation on HYDRA to make sure that no job will be running at that moment. Jobs that can complete before the date will be executed and those with a walltime beyond September 25 will be maintained in the queue.

A cluster downtime is necessary to put in production a new network of 10 Gbps to access HYDRA storage (the work directory) which must be enabled in the GPFS storage system.

The GPFS Storage system will be used by 27 additional HYDRA compute nodes and one high memory node of 1.5 TB RAM which are ready to go in production.

Technical details of the new HYDRA nodes:

New compute nodes details:
Each node will feature 2x Intel Xeon E5-2680 v4 @ 2.40GHz (14 Cores), 256 GB RAM, 10 Gbps for storage access and 900 GB local storage.
A total of 756 cores and ~7 TB RAM will be added to HYDRA.

New high-memory node details:
The node will feature 4x Intel Xeon E7-8891 v4 @ 2.80GHz (10 cores), 1536 GB RAM, 10 Gbps for storage access and 3.7 TB local storage.


Raphael Leplae - hpc@vub.ac.be


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