@Test
  public void testDiskCompactRemote() throws Exception {
    for (VM memberVM : memberVMs) {
      createPersistentRegion(memberVM);
      makeDiskCompactable(memberVM);
    }

    compactDiskStoresRemote(managerVM, memberVMs.length);
  }
Tests Disk Compaction from a MemberMXBean which is at cache level. All the disks which belong
to the cache should be compacted.
geode-core/src/distributedTest/java/org/apache/geode/management/DiskManagementDUnitTest.java