err = msgp.WrapError(err, "Size")
				return
			}
		case "ActualSize":
			if msgp.IsNil(bts) {
				bts, err = msgp.ReadNilBytes(bts)
				if err != nil {
					return
				}
				z.ActualSize = nil
			} else {
				if z.ActualSize == nil {
					z.ActualSize = new(int64)
				}
				*z.ActualSize, bts, err = msgp.ReadInt64Bytes(bts)
				if err != nil {

			onlineDisks[i] = nil
			continue
		}
		partsMetadata[i].Data = inlineBuffers[i].Bytes()
		partsMetadata[i].AddObjectPart(1, "", n, data.ActualSize(), modTime, index, nil)
	}

	// Fill all the necessary metadata.
	// Update `xl.meta` content on each disks.
	for index := range partsMetadata {
		partsMetadata[index].Size = n

		for i := range fi.Parts {
			fi.Parts[i].Number = j.PartNumbers[i]
			fi.Parts[i].Size = j.PartSizes[i]
			if len(j.PartETags) == len(fi.Parts) {
				fi.Parts[i].ETag = j.PartETags[i]
			}
			fi.Parts[i].ActualSize = j.PartActualSizes[i]
			if len(j.PartIndices) == len(fi.Parts) {
				fi.Parts[i].Index = j.PartIndices[i]
			}
		}
	}

	// fi.Erasure.Checksums - is left empty since we do not have any

	// create xlStorage test setup
	xlStorage, _, err := newXLStorageTestSetup(t)
	if err != nil {
		t.Fatalf("Unable to cfgreate xlStorage test setup, %s", err)
	}