Compound solid state drive control system

Abstract

The invention provides a compound solid state drive control system, wherein a redundant array of independent drives composed of SD (secure digital) storage cards is compounded with a multichannel flash memory. According to the invention, at least one control unit of redundant array of independent drives is used for combining a plurality of relatively cheap SD storage cards to form a redundant array group of independent drives so as to enable the access performance to reach to or exceed that of an SD storage card with an expensive price and a huge volume, the data storage relation of at least one flash memory control unit and at least one SD storage card control unit is controlled to speed up the data reading and backup, and the high stability of the flash memory is used for guaranteeing a stable operation of an electronic calculating device.

Description

technical field [0001] The invention relates to a solid-state hard disk control system, in particular to a solid-state hard disk control system composed of an independent disk redundant array formed by an SD memory card and a multi-channel flash memory. Background technique [0002] With the advancement of computer technology, people use personal computers, notebook computers or personal storage devices, and the demand for data storage devices is increasing. At the same time, the data storage devices used in the past such as hard disks , because of poor expandability, or high loss caused by vibration and high heat dissipation in the operation mode, it is gradually not accepted by the market demand, and it has gradually been replaced by solid-state data storage devices. At present, all kinds of solid-state storage devices such as flash memory, memory card (Memory Stick), SD memory card, IDE flash drive, SATA flash drive, etc. are produced, and flash memory technology is the m...

AI Technical Summary

Problems solved by technology

[0002] With the advancement of computer technology, people use personal computers, notebook computers or personal storage devices, and the demand for data storage devices is increasing. At the same time, the data storage devices used in the past such as hard disks , due to poor scalability, or high loss caused by vibration and high heat dissipation in the operation mode, it is gradually not accepted by the market demand, and has gradually been replaced by solid-state data storage devices.

At present, all kinds of solid-state storage devices such as flash memory, memory card (Memory Stick), SD memory card, IDE flash drive, SATA flash drive, etc. are produced, and flash memory technology is the most proficient at present, making many Storage devices are gradually replacing traditional hard disks with flash memory, but the disadvantage of flash memory is that the unit price is too high. If a high unit price flash memory type is used alone to meet the needs of consumers, the cost will be even higher. The data transfer rate level of the flash memory is proportional to the capacity, which means that the faster the data transfer and the larger the capacity of the flash memory, the higher the cost.

If you use a low-cost SD memory card combined with a solid-state hard drive alone, it can only provide convenience, but it cannot provide guarantee for electronic computing devices that require high stability applications.

In the past, the prior art once proposed a redundant array of independent disks (Redundant Array of Independent Disks, RAID) method, which can help improve the access speed of electronic computing devices. The access device is combined into one access device. When the access device performs data access, the data will be divided into multiple parts, and then accessed in multiple sub-access devices simultaneously and in parallel, so independent disk redundancy Arrays can provide faster access speeds, such as Taiwan Patent Publication No. 200910356, which discloses a flash memory chip and a flash array storage system. Its technical feature is to use PCI Express as the data transmission interface 10 connection interface and utilize a flash array controller 12 combined with multi-flash memory chip 14, please refer to figure 1 , but as mentioned earlier, the combination of redundant array of independent disks and flash memory can be said to be very expensive. How to make solid-state hard disks have high data access speeds and high capacity expansion while maintaining economic benefits And providing a high degree of stability is a major problem for solid-state hard disk storage to overcome

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