CAS

CAS stands for Content Addressed Storage. It's a type of storage system where data is stored based on its content rather than its location. In a CAS system, data is identified by a unique hash or address derived from the content itself, rather than by a file name or directory path.

Key Features of CAS:

• Immutability: Once data is stored, it cannot be modified, ensuring data integrity and making it suitable for archiving.

• Content-Based Addressing: Each piece of data is given a unique identifier (hash) based on its content. This ensures that even if two files have the same name but different content, they will be stored separately.

• Efficiency: CAS systems can eliminate duplicate data (deduplication) by recognizing that identical content has already been stored.

• Scalability: Designed to handle large volumes of data, CAS systems are often used for archiving, backup, and regulatory compliance purposes.

Use Cases:

• Archiving: CAS is commonly used for long-term data storage, such as legal documents, medical records, and emails, where data integrity is critical.

• Compliance: Industries that need to comply with regulations requiring data to be stored unaltered for long periods (e.g., healthcare, finance) often use CAS.

• Data Deduplication: Reduces storage costs by eliminating redundant copies of data.

CAS systems are often part of enterprise storage solutions, providing secure, reliable, and scalable storage for critical data.