ceph-run is a simple wrapper that will restart a daemon if it exits with a signal indicating it crashed and possibly core dumped (that is, signals 3, 4, 5, 6, 8, or 11).
The command should run the daemon in the foreground. For Ceph daemons, that means the -f option.
ceph-run is part of the Ceph distributed file system. Please refer to the Ceph documentation at http://ceph.com/docs for more information.