partSize := fi.Parts[partIndex].Size

		partLength := partSize - partOffset
		// partLength should be adjusted so that we don't write more data than what was requested.
		if partLength > (length - totalBytesRead) {
			partLength = length - totalBytesRead
		}

		tillOffset := erasure.ShardFileOffset(partOffset, partLength, partSize)
		// Get the checksums of the current part.

			for k, v := range m {
				r[k] = v
			}
			return r
		}
	)

	type ObjectInput struct {
		objectName  string
		partLengths []int64

		metaData map[string]string
	}

	objectLength := func(oi ObjectInput) (sum int64) {
		for _, l := range oi.partLengths {
			sum += l
		}
		return
	}

	// set of inputs for uploading the objects before tests for

		OA.ObjectParts = new(objectAttributesParts)
		OA.ObjectParts.PartNumberMarker = opts.PartNumberMarker

		OA.ObjectParts.MaxParts = opts.MaxParts
		partsLength := len(objInfo.Parts)
		OA.ObjectParts.PartsCount = partsLength

		if opts.MaxParts > -1 {
			for i, v := range objInfo.Parts {
				if v.Number <= opts.PartNumberMarker {
					continue
				}