Definition - What does Utility Storage mean?
Utility storage is a cloud Infrastructure as a Service (IaaS) solution that provides storage space that users can access over the Internet. It can also be hosted on a remote cloud server or storage area network (SAN). Utility storage is also known as cloud storage and is often interrelated with storage virtualization, but it differs in that storage virtualization is the actual process by which utility storage service is enabled.
Utility storage is also known as cloud storage.
Techopedia explains Utility Storage
Because it is implemented on a virtualization layer, utility storage is elastic in nature and can be extended easily on run time, usually without much human intervention. As a result, users are not limited by storage capacity. Amazon Simple Storage Service (S3) is a popular example of utility storage in which users access the remote cloud storage through vendor API and an online management console.