CACHING TECHNIQUES: abstract simplified (17715459)

• This abstract for appeared for patent application number 17715459 Titled 'CACHING TECHNIQUES'

Simplified Explanation

The abstract describes a data storage system that uses a deduplicated data cache to store unique data portions. When reading or writing data, the system checks if the data portion stored at a specific address meets certain criteria for promotion to the deduplicated data cache. These criteria include being a duplicate of content stored at multiple addresses and having a reference count that meets a minimum threshold. If the data portion meets the criteria, it is stored in the deduplicated data cache.

Original Abstract Submitted

A data storage system can include a deduplicated data cache used to store unique deduplicated data portions. Data portions can be promoted to the deduplicated data cache in connection with servicing I/O operations. Servicing the I/O operation that reads data from, or writes data to, a logical address can include determining whether a data portion stored at the logical address meets criteria for promoting the data portion to a deduplicated data cache. The criteria can include a condition that the data portion is a duplicate of content stored at multiple logical addresses, and can include a condition that the data portion has a reference count that is at least a minimum threshold where the reference count denotes a number of logical addresses at which the data portion is stored. Responsive to determining the data portion meets the criteria, the data portion can be stored in the deduplicated data cache.