Disclosed herein are systems and method storing data. In an exemplary aspect, a method comprises determining a threshold data size for objects in a target data system; generating a data blob that has an allocated size of at least the threshold data size, wherein the data blob comprises at least one data set; identifying a data set stored in a source data system for backup to the target data system; determining whether a size of the data set is less than the threshold data size; and responsive to determining that the size of the data set is less than the threshold data size, inserting the data set into the data blob; and writing the data blob to the target data system.