void createRegion(DiskRegionView drv) {
    lock(true);
    try {
      if (!drv.isRecreated()) {
        writeIFRecord(IFREC_CREATE_REGION_ID, drv, drv.getName());
        liveRegions++;
        writeRegionConfig(drv);
        // no need to add to drMap since it will be in the DiskStore drMap
      } else {
        if (drv.hasConfigChanged()) {
          writeRegionConfig(drv);
          drv.setConfigChanged(false);
        }
      }
    } finally {
      unlock(true);
    }
  }
Write a clear with an RVV record.
geode-core/src/main/java/org/apache/geode/internal/cache/DiskInitFile.java