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(Resolved) Downtime of LiDO3 clusters due to cooling water failure

Exclamation mark on black sign © Karolin Kriesch​/​TU Dortmund
LiDO3 cluster back to production after cooling water supply interruption

Cooling water supply of the LiDO3 cluster has malfunctioned, causing an immediate sharp rise in server temperatures. To prevent permanent damage, the LiDO3 cluster was shutdown down in a controlled manner on September 26, 2025 7:05 pm.

 

Update as of September 27, 2025 3 pm: Cooling water supply got restored last night. Die Störung wurde vergangene Nacht behoben. Restoring service started at 7 am this morning. Since a few minutes ago, the LiDO3 cluster is fully functioning again and returned to production.