public int getNumBucketsWithoutRedundancy() {
    if (!isPartionedRegion()) {
      return ManagementConstants.NOT_AVAILABLE_INT;
    }
    return monitor.getNumBucketsWithoutRedundancy();
  }
@return The current number of entries whose value is on disk and is not in memory. This is true
        of overflowed entries. It is also true of recovered entries that have not yet been
        faulted in.
geode-core/src/main/java/org/apache/geode/management/internal/beans/DistributedRegionBridge.java