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

    backupAllMembers(managerVM, memberVMs.length);
  }
Tests various operations defined on DiskStore Mbean
geode-core/src/distributedTest/java/org/apache/geode/management/DiskManagementDUnitTest.java