def METHOD_NAME(self):
    """
    Get the HDD usage of the entire site
    """
    cmd = 'du -s -k %s' % settings.PROJECT_ROOT
    size_in_kb = 0
    try:
        output = subprocess.check_output(cmd, stderr=subprocess.STDOUT, shell=True)
        size_in_kb = int(output.split()[0].strip())
    except subprocess.CalledProcessError:
        pass
    return size_in_kb * 1024