LazyPersistTestCase has some issues hat lead to inconsistent result of the test cases:
- the wait periods to change of status is too long. It reaches 10 secs in some cases.
- triggerBlockReport() only triggers FBR of DN with index 0. This is counter intuitive because the JUnit tests restart the DN assuming that the restarted DN will send a FBR. However, this never happens because the DN will get a new index post restart.