private String setSystemProperty(String property, String value) {
    if (value == null) {
      return System.clearProperty(property);
    } else {
      return System.setProperty(property, value);
    }
  }
This verifies the Bucket Regions on the basis of redundantCopies set in RegionAttributes.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PartitionedRegionHADUnitTest.java