So far so good (one verification pass made without problems).

And then : process DCDs, built and install rosetta v.3.4 and ambertools v.12, xfs_fsr (to completion), reboot, xfs_check, xfs_repair, level zero backup of / and /boot → back to safety. Restart jobs.

Port 0 of RAID thrown out again (which brought the system down). Last time it was again port 0, two months ago. Try xfs_repair + rebuilt (but the disk will have to be replaced at some point).