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habrok:additional_information:changelog [2026/06/25 08:35] – [2026-06-24] pedrohabrok:additional_information:changelog [2026/10/06 12:51] (current) – [2026-10-06] fokke
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 This page records major changes to Hábrók, which are mostly carried out during scheduled maintenance periods. This changelog is kept since August 13th 2025, although changes have been made during past scheduled maintenance periods and on-demand as necessary. This page records major changes to Hábrók, which are mostly carried out during scheduled maintenance periods. This changelog is kept since August 13th 2025, although changes have been made during past scheduled maintenance periods and on-demand as necessary.
 +
 +===== 2026-10-06 ===== 
 +
 +  * gpu1.hb.hpc.rug.nl and interactive1.hb.hpc.rug.nl and the Digital Lab H100 node have been migrated to Alma Linux 9.
 +
 +===== 2026-09-28 ===== 
 +
 +  * All regular nodes have been migrated to Alma Linux 9. Thus, there are no more generally accessible Alma Linux 8 compute nodes left. The only exception pending migration scheduling is the private ''dl-h100gpu1'' node.
 +
 +===== 2026-09-15 ===== 
 +
 +  * All GPU nodes, except those in private partitions, have been migrated to Alma Linux 9
 +  * All big memory nodes in the himem partition have been upgraded to Alma Linux 9
 +  * The regular and parallel partition contain a mixture of Alma Linux 8 and Alma Linux 9 nodes. Reservations are in place for the these nodes to update the rest of these in several batches.
 +
 +===== 2026-09-07 ===== 
 +  * login2.hb.hpc.rug.nl, interactive2.hb.hpc.rug.nl and gpu2.hb.hpc.rug.nl have been reinstalled with Alma Linux 9
 +  * All partitions now contain a mixture of nodes running Alma Linux 8 and 9
 +
 +===== 2026-08-25 =====
 +
 +Starting 2nd phase of migration from Alma Linux 8 to Alma Linux 9.  See  [[..:migration:alma9:plan#gradual_migration_of_compute_and_logininteractive_nodes|Gradual migration of compute and login/interactive nodes]] for the details. This introduces the following changes:
 +  * The special reservation for Alma 9 nodes has been removed and they are now part of the general pool
 +  * We will migrate more compute and GPU nodes to Alma Linux 9
 +  * We will start migrating half of the login, interactive and interactive GPU nodes to Alma Linux 9. We have started with reinstalling interactive2.hb.hpc.rug.nl
 +===== Maintenance 2026-08-03 =====
 +
 +The following changes were applied during the scheduled maintenance window:
 +
 +  * Applied firmware updates to all nodes.
 +  * Upgraded Slurm (Hábrók's job scheduler) to version 25.11.7.
 +  * Upgraded Lustre (''/scratch'' and ''/projects'' filesystem servers) to version 2.15.8.
 +  * Moved V100 nodes to other network switch.
 +  * Rebooted all nodes.
 +  * Completed validation tests.
  
 ===== 2026-06-24 ===== ===== 2026-06-24 =====