On Linux platforms which support a bind type of file system mount (which are generally RHEL 5 systems and more recent platforms), the administrator can configure the condor_startd to provide per-job file system mounts. One use might be to provide each job its own view of /tmp and /var/tmp, which are private to that Condor job, and cleared when the job exits. This is implemented with the new MOUNT_UNDER_SCRATCH configuration variable, which describes which directories to bind mount.
Tested with condor-7.8.8-0.4.3 on RHEL 6.4/5.9 x i386/x86_64 and it works. -->VERIFIED