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
Title | Year | Author | Number |
---|---|---|---|
DATA ENCODING METHOD AND DATA STORAGE SYSTEM | 2023 |
|
RU2819584C1 |
METHOD FOR DATA STORAGE IN REDUNDANT ARRAY OF INDEPENDENT DISKS WITH INCREASED FAULT TOLERANCE | 2020 |
|
RU2750645C1 |
DATA STORAGE METHOD AND SYSTEM | 2017 |
|
RU2656739C1 |
METHOD FOR PERFORMING READ AHEAD IN DATA STORAGE SYSTEMS | 2017 |
|
RU2672726C1 |
MAGNETIC DRIVE WITH DIVIDED AREAS | 2020 |
|
RU2757659C1 |
MASSIVE CONTROLLER, SOLID STATE DISK AND DATA RECORDING SOLID STATE DISK CONTROL METHOD | 2015 |
|
RU2661280C2 |
METHOD FOR STORING DATA USING DATA STORAGE DEVICE AND DATA STORAGE DEVICE | 2015 |
|
RU2642349C1 |
METHOD OF CHECKING CORRECTNESS OF DATA ENTRY IN DUAL-CONTROLLER DATA STORAGE SYSTEM BASED ON ARRAY OF NONVOLATILE MEDIA AND APPARATUS THEREFOR | 2013 |
|
RU2552151C2 |
METHOD OF PROTECTING AVAILABILITY AND SECURITY OF STORED DATA AND SYSTEM FOR ADJUSTABLE PROTECTION OF STORED DATA | 2014 |
|
RU2584755C2 |
WAY OF THE LINKED DATA STORAGE ARRANGEMENT | 2016 |
|
RU2621628C1 |
Authors
Dates
2023-10-10—Published
2021-05-13—Filed