func (z *erasureServerPools) NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (mp *NewMultipartUploadResult, err error) {
	if err := checkNewMultipartArgs(ctx, bucket, object); err != nil {
		return nil, err
	}

	defer func() {
		if err == nil && mp != nil {
			z.mpCache.Store(mp.UploadID, MultipartInfo{
				Bucket:    bucket,