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
	}
	return objLayer, fsDirs, nil
}

	const numDisks = 4
	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 cancel()

	resetGlobalHealState()
	defer resetGlobalHealState()

	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)

	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
}

	benchmarkInitStorageDisksN(b, 32*204)
}

func benchmarkInitStorageDisksN(b *testing.B, nDisks int) {
	b.ResetTimer()
	b.ReportAllocs()

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

	endpoints := mustGetNewEndpoints(0, 16, fsDirs...)
	b.RunParallel(func(pb *testing.PB) {
		endpoints := endpoints
		for pb.Next() {

	}
}

// Tests presigned v2 signature.
func TestDoesPresignedV2SignatureMatch(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	obj, fsDir, err := prepareFS(ctx)
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(fsDir)
	if err = newTestConfig(globalMinioDefaultRegion, obj); err != nil {
		t.Fatal(err)
	}

	now := UTCNow()

	var (
		accessKey = globalActiveCred.AccessKey

}

// Tests web request authenticator.
func TestWebRequestAuthenticate(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	obj, fsDir, err := prepareFS(ctx)
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(fsDir)
	if err = newTestConfig(globalMinioDefaultRegion, obj); err != nil {
		t.Fatal(err)
	}

	creds := globalActiveCred