Checkers cluster is undergoing OS upgrade and will be back on Monday or Tuesday.

    update 24 March:  checkers will be back in production today or tomorrow at the latest.

Dendrite is experiencing internal disk problems stopping it from rebooting.

Cortex is experiencing GPFS file system problems.

We expect to have all the machines up and running on Monday or Tuesday.

   update 24 March: there are serious problems with these machines.  They will be
   looked at after checkers is up.  There is no ETA for these machines yet.

 Update 26 March:  Checkers cluster is back in production