Lichtenberg: downtime 4. – 10. of October

Refurbishments on the cooling systems

2021/09/23 by

Over the week from 4 th – 10 th . October, the whole HPC cluster will be down and unavailable .

As repeatedly announced earlier this year, an extended downtime of the whole HPC cluster is necessary (3 to 4 weeks), related to improving the redundancy of the cooling system in the HLR building L5|08.

In the meantime, we have found a solution to provide “alternative cooling” during most of these refurbishments, so the planned downtime will now last only one week.

In this week, the alternative cooling is being conjoined into the existing systems, to provide sufficient cooling for the rest of the time of these refurbishments.

This is now planned for the week from October, 4th to October, 10th. During this downtime, neither the cluster nor the file systems will be available.

After completion of the refurbishment, we expect the switch-back from alternative to regular (then redundant) cooling to be non-disruptive. In case this turns out to be not viable, we will inform as soon as possible.

Your HPC-Team