public boolean isNormal(DiskStoreImpl ds, DirectoryHolder dir) {
    Set<DirectoryHolderUsage> dirs = disks.get(ds);
    if (dirs != null) {
      for (DirectoryHolderUsage du : dirs) {
        if (du.dir == dir) {
          return du.getState() == DiskState.NORMAL;
        }
      }
    }

    // only a postive negatory :-)
    return true;
  }
Validates the critical percent.

@param val the value to check
geode-core/src/main/java/org/apache/geode/internal/cache/DiskStoreMonitor.java