NIRD Data Lake service. from 2025-12-12 10:00 CET to 2025-12-12 13:00 CET

We want to inform that the NIRD Data Lake service may experience slightly reduced performance on both S3 and NFS protocols starting from the 5th of December due to preparatory work for an upcoming upgrade.
To complete this upgrade, a planned full service downtime of about 2 hours is scheduled for the 12th of December from 10:00. During this maintenance window, the NIRD Data Lake will be unavailable from HPC machines and over S3. Data will, however, be available through the NIRD login nodes and SSH.
We recommend planning workloads accordingly. Thank you for your understanding as we work to improve the service.

-Infra Team