Storage device with a plurality of storage units and control method thereof

Abstract

The invention provides a storage device with a plurality of storage units. The storage device is applied in a system terminal. The storage device is a hard disk drive (HDD) of a solid state drive (SSD) of a standard size. The storage device comprises a first storage unit and at least one solid state storage unit which are redundant mutually and updated. Power supplies of the first storage unit and the at least one solid state storage unit are respectively controlled by a power supply control unit according to the decision of a multiplex control unit.

Description

technical field [0001] The invention relates to a storage device with multiple storage units and its control method, especially to a storage device with at least two storage units, one of which is a memory storage unit. Background technique [0002] Personal computers all use Hard Disk Drive (HDD for short) as the loading device for the operating system, which uses a non-volatile (non-volatile) storage device based on a hard rotating disk, and is placed on a flat magnetic surface. Store and retrieve digital data. Information is written to the disk by electromagnetic currents that change the polarity of the magnetic head through a head that is very close to the magnetic surface. Information can be read back by the opposite way, such as a magnetic field causing a change in electricity in a coil or a head passing over it. [0003] And along with the development of various electronic products, hard drives have developed various standard sizes for application in these electroni...

AI Technical Summary

Problems solved by technology

3.5 inches, mostly used in desktop computers, the external hard disk box with 3.5″ hard disk needs an external power supply, which is inconvenient

However, compared to flash memory as a storage unit, hard disk drives have many disadvantages, including high power consumption, high temperature, and noise, etc., but the biggest fatal flaw is its stability. Spindle motor) usually has 5,400rpm (rotating 5,400 revolutions per minute) or 7,200rpm or even 10,000rpm. Under the high-speed rotation of the hard disk drive, it is easy to be damaged by external collisions and vibrations. Once the magnetic track is damaged, it will be recorded on the magnetic track. It is easy to destroy all or part of the data on the computer, which has always been the biggest pain for computer users.

[0008] The main advantages of using flash memory are fast speed and no noise (because no motor is needed), but the disadvantages are that the capacity is too small and the cost is too high

Images