Data management is a theme in which there are a few topics covered, namely Backup or Data Protection as well as Disaster recovery and Business continuity. It also refers to how a business makes use of the data they keep. With a full data management suite, businesses can use their backups as reference points to do sandbox testing, achieve governance and compliance goals, ensure data quality and integrity all through the filter of high security best practices.
Cloud storage technology is simply a place to store block or object/file type data used by their applications on a day to day basis, with options for archiving older data.