private void createDataFor(final int startKey, final int endKey,
      final String regionName) {
    Region<Integer, Integer> region = getCache().getRegion(regionName);
    for (int i = startKey; i < endKey; i++) {
      region.put(i, i);
    }
  }
Test to make sure that we can recover from a complete system shutdown
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/persistence/PersistentPartitionedRegionWithRedundancyDUnitTest.java