private void persistence() {
try {
if (MSingleton.instance().isPersistence()) {
File f = MSingleton.instance().getPersistenceManager().sessionScope().getPersistenceFile(getJmxName() + "_" + name + ".rrd");
rrd = new RoundRobin(MTimeInterval.HOUR_IN_MILLISECOUNDS , f);
}
} catch (Throwable t) {
log().t(t);
}
}