Content Addressable Storage

What Does Content Addressable Storage Mean?

Content addressable storage (CAS) is a storage mechanism in which fixed data is assigned a permanent location on a hard disk and addressed with a unique content name, identifier or address. EMC Corporation initially launched CAS for its distributed data management (DDM) software.

Advertisements

CAS is also known as associative storage, content aware storage or Fixed Content Storage (FCS).

Techopedia Explains Content Addressable Storage

CAS is designed to facilitate more efficient storage and access of fixed data that does not generally change over time. It allows organizations to archive and retrieve large amounts of data for longer retention periods, specifically to comply with regulatory requirements.

CAS works by storing each data object on a hard disk and assigning it a unique content address/identifier. Once the data object is stored, it cannot be duplicated, modified or deleted. To access the data, a user or application must specify the data’s content address or identifier.

Advertisements

Related Terms

Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…