public void writeRVV(LocalRegion region, Boolean isRVVTrusted) {
    if (getFlags().contains(DiskRegionFlag.IS_WITH_VERSIONING)) {
      getDiskStore().writeRVV(this, region, isRVVTrusted);
    }
  }
Record current RVV to disk and update into disk region RVV.
geode-core/src/main/java/org/apache/geode/internal/cache/DiskRegion.java