deb9 → deb11 migration update
We are powering off old E5 cluster, by queues, to:
test nodes for E5/deb11+slurm will be drain of jobs and powered off soon to make room for real E5 production nodes (upgraded to deb11+slurm).
A block of nodes (~24n, 768c) will be added to Lake partition, without scratch, next week.