Sunday between 8am and 9am the cdsfs0 disk system went into read-only mode. I power cycled cdsfs0 this morning at 09:45 to fix the problem. We have a replacement raid controller to try, but taking cdsfs0 down for the swap out will be very intrusive for all CDS activities and so we have not scheduled this yet.

Some workstations may come back by themselves, others may need to be rebooted. I have restored most of the control room workstations.