)

func prepareErasurePools() (ObjectLayer, []string, error) {
	nDisks := 32
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		return nil, nil, err
	}

	pools := mustGetPoolEndpoints(0, fsDirs[:16]...)
	pools = append(pools, mustGetPoolEndpoints(1, fsDirs[16:]...)...)

	objLayer, _, err := initObjectLayer(context.Background(), pools)
	if err != nil {
		removeRoots(fsDirs)
		return nil, nil, err
	}

	nDisks := 1
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal("Failed to create drives for the backend")
	}
	defer removeRoots(disks)

	obj, err := newObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		t.Fatal("Unexpected object layer initialization error", err)
	}

	_, ok := obj.(*erasureServerPools)
	if !ok {
		t.Fatal("Unexpected object layer detected", reflect.TypeOf(obj))

	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	nDisks := 16
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal(err)
	}
	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		removeRoots(disks)
		t.Fatal(err)
	}
	defer removeRoots(disks)
	z := objLayer.(*erasureServerPools)
	testShuffleDisks(t, z)
}

	nDisks := 32
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal(err)
	}

	defer removeRoots(fsDirs)

	pools := mustGetPoolEndpoints(0, fsDirs[:16]...)
	pools = append(pools, mustGetPoolEndpoints(1, fsDirs[16:]...)...)

	// Everything is fine, should return nil
	objLayer, _, err := initObjectLayer(ctx, pools)
	if err != nil {
		t.Fatal(err)
	}

	if err := newTestConfig(globalMinioDefaultRegion, objLayer); err != nil {
		cancel()
		return nil, err
	}

	// Initialize boot time
	globalBootTime = UTCNow()

	globalEndpoints = mustGetPoolEndpoints(0, erasureDirs...)

	initAllSubsystems(ctx)

	initConfigSubsystem(ctx, objLayer)

	globalIAMSys.Init(ctx, objLayer, globalEtcdClient, 2*time.Second)

	// Setup admin mgmt REST API handlers.

	nDisks := 1
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		return nil, "", err
	}
	obj, _, err := initObjectLayer(context.Background(), mustGetPoolEndpoints(0, fsDirs...))
	if err != nil {
		return nil, "", err
	}

	initAllSubsystems(ctx)

	globalIAMSys.Init(ctx, obj, globalEtcdClient, 2*time.Second)
	return obj, fsDirs[0], nil
}

			[]string{"http://localhost:9000/d1", "http://localhost:9001/d2", "http://localhost:9002/d3", "http://localhost:9003/d4"},
			"localhost:9000",
		},
	}

	for i, testCase := range testCases {
		zendpoints := mustGetPoolEndpoints(0, testCase.endpointArgs...)
		if !zendpoints[0].Endpoints[0].IsLocal {
			if err := zendpoints[0].Endpoints.UpdateIsLocal(); err != nil {
				t.Fatalf("error: expected = <nil>, got = %v", err)
			}
		}

	path := t.TempDir()

	var fsDirs []string
	for i := 1; i <= numDisks; i++ {
		fsDirs = append(fsDirs, filepath.Join(path, fmt.Sprintf("disk%d", i)))
	}

	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, fsDirs...))
	if err != nil {
		removeRoots(fsDirs)
		t.Fatal(err)
	}

	// cleaning up of temporary test directories
	defer objLayer.Shutdown(t.Context())
	defer removeRoots(fsDirs)

				}
			}
		})
	}
}

// Initialize FS backend for the benchmark.
func initFSObjectsB(disk string, t *testing.B) (obj ObjectLayer) {
	obj, _, err := initObjectLayer(context.Background(), mustGetPoolEndpoints(0, disk))
	if err != nil {
		t.Fatal(err)
	}

	newTestConfig(globalMinioDefaultRegion, obj)

	initAllSubsystems(GlobalContext)
	return obj
}