The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a removal of all snapshots rebooting the machine worked.
Affected disks:
arb botgarden ccs4 excienwi exoarchief FIT gi1 gipsy isis-dhz
itt iwwr1 leonardo mercator micord molspec olcwis ons pvs
ratio tzacad vb vscxray WiskundeToernooi zeegras