private File[] getDiskDirs() throws IOException {
    File dir = temporaryFolder.newFolder("disk" + VM.getCurrentVMNum()).getAbsoluteFile();
    return new File[] {dir};
  }
Return the actual values for entries in the jvm (in memory) and entries on disk. These values
are the sum of all buckets in the current member.

@return [0] total entries in VM [1] total entries on disk
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/partitioned/BucketRebalanceStatRegressionTest.java