The UM site has updated to RHEL9.7; The work nodes and dcache nodes will wait for the next firmware update (Next quarter) to reboot to the new kernel
Fixed the PDU issue in the UM Tier2, brought all the work nodes back online.
Reported and resolved the UNK A/R site results for November 2025
Mini data challenge: identified some storage server having saturated disks during writing , and more storage servers during reading, working on collecting more monitor data from IO performance.
AGLT2 has a fiber issue this morning:
Service Degradation - Merit is reporting a Fiber Issue between Kalamazoo and Jackson.
This is affecting the direct connection between UM and ESnet
But our network resiliency for UM via MSU (over our 100G Research Triangle with WSU) is working and we aren't seeing any failures
Note on host tuning script being developed for WLCG perfSONAR: https://osg-htc.org/networking/perfsonar/tools_scripts/fasterdata-tuning/ This script is also intended to audit or apply Fasterdata settings. Have been used on UM's perfSONAR (psum01/psum02/psum02-100g.aglt2.org) and on one of our dCache hosts umfs20.aglt2.org. Script will be upgraded to "save" and "restore" configs for upcoming mini-capability challenge in January 2026. Feedback on the script and docs welcome.