}

// NewNSLock - initialize a new namespace RWLocker instance.
func (s *erasureSets) NewNSLock(bucket string, objects ...string) RWLocker {
	if len(objects) == 1 {
		return s.getHashedSet(objects[0]).NewNSLock(bucket, objects...)
	}
	return s.getHashedSet("").NewNSLock(bucket, objects...)
}

// SetDriveCount returns the current drives per set.
func (s *erasureSets) SetDriveCount() int {
	return s.setDriveCount
}

		{"a/b/c/", objs[1]},
		{"/a/b/c", objs[4]},
		{string([]byte{0xff, 0xfe, 0xfd}), objs[13]},
	}

	// Tests hashing order to be consistent.
	for i, testCase := range testCases {
		gotObj := sets.getHashedSet(testCase.objectName)
		if gotObj != testCase.expectedObj {
			t.Errorf("Test case %d: Expected \"%#v\" but failed \"%#v\"", i+1, testCase.expectedObj, gotObj)
		}
	}

			_, err = io.Copy(actualH, bytes.NewReader(data))
			if err != nil {
				return
			}
			actualSha256 := actualH.Sum(nil)

			z := obj.(*erasureServerPools)
			er := z.serverPools[0].getHashedSet(object)

			disks := er.getDisks()
			distribution := hashOrder(pathJoin(bucket, object), nDisks)
			shuffledDisks := shuffleDisks(disks, distribution)

			// remove last data shard

			continue
		}
		pool := z.serverPools[index]
		nSets[index] = pool.setCount
		g.Go(func() error {
			// Get the set where it would be placed.
			storageInfos[index] = getDiskInfos(ctx, pool.getHashedSet(object).getDisks()...)
			return nil
		}, index)
	}

	// Wait for the go routines.
	g.Wait()

	for i, zinfo := range storageInfos {
		if zinfo == nil {