Data reduction in storage system

• Main Authors: LESTER ROBERT M, ITEN STEFAN, GATES MATTHEW S, VEPRINSKY ALEXANDER
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to data reduction in a storage system. Example implementations relate to storing data in a storage system. An example includes receiving, by a storage controller of a storage system, a data unit to be stored in persistent storage of the storage system. The storage controller determines a maximum entropy value and a minimum entropy value of the received data unit. The storage controller determines whether the received data unit can be subjected to data reduction based at least on the minimum entropy value and the maximum entropy value. In response to determining that the received data unit can be data reduction, the storage controller performs at least one reduction operation on the received data unit. 本公开涉及存储系统中的数据归约。示例实施方式涉及在存储系统中存储数据。示例包括由存储系统的存储控制器接收要存储在所述存储系统的持久性存储装置中的数据单元。所述存储控制器确定所接收的数据单元的最大熵值和最小熵值。所述存储控制器至少基于所述最小熵值和所述最大熵值来确定所接收的数据单元是否可进行数据归约。响应于确定所接收的数据单元可进行数据归约，所述存储控制器对所接收的数据单元执行至少一种归约操作。