METHOD OF DATA STORAGE SYSTEM MANAGEMENT AND DATA STORAGE SYSTEM Russian patent published in 2023 - IPC G06F12/08 G06F3/06 

FIELD: computer engineering.

SUBSTANCE: invention is proposed to increase the performance of the data storage system and increase its service life. It is achieved due to the fact that the data storage system includes RAM, a parallel SSD cache, divided into a first group of write blocks (RWC) and a second group of read blocks (RRC), a hard drive, a request detector and a frequency analyser requests to read data. The method allows you to divide requests into random and sequential both during write and read operations and, depending on the type of request, send them to different types of memory. When all free groups in the SSD cache are filled in the first group of write blocks or the second group of read blocks, data is evicted. Data that has not been used for a long time is evicted from the first group of write blocks (RWC). From the second group of read blocks (RRC), data from the data block that has the lowest usage intensity is released, taking into account the number of data evictions experienced from the block over a certain period of time.

EFFECT: increased performance and increased service life of the data storage system.

11 cl, 8 dwg