Today: site downtime for replacement of main breaker in whole-room UPS at UM.
3rd attempt.  Under way.

EL9: 17 UM worker nodes now on RHEL9

SOC: Milestone completed.
MSU capture node operational.
But throughput seen is too low.
Investigating.

New IAM instance: implemented in dCache.
Test page was showing problems.
Petr updated test scripts; now all green.