if err != nil {
				t.Fatal(err)
			}
			firstHealedDataSha256 := firstHealedH.Sum(nil)

			if !bytes.Equal(actualSha256, firstHealedDataSha256) {
				t.Fatalf("object healed wrong, expected %x, got %x",
					actualSha256, firstHealedDataSha256)
			}

			// remove another data shard
			if err = removeAll(pathJoin(shuffledDisks[1].String(), bucket, object)); err != nil {