Storage expansion device and booting method for storage expansion device

Abstract

The invention discloses a storage expansion device which comprises an interface unit, a storage unit, a power supply, a D flip-flop and a master control unit. The interface unit is used for receiving OOB signals from a mainframe, and the clock input end of the D flip-flop is connected with the interface unit and used for receiving the OOB signals forwarded by the interface unit from the mainframe. The data input end of the D flip-flop is connected with the master control unit and used for receiving reset signals from the master control unit, and the master control unit is further connected with the output end of the D flip-flop and used for receiving output signals of the D flip-flop. When the output signals of the D flip-flop are detected to be overturned, the master control unit executes the booting operation. The invention further discloses a booting method for the storage expansion device.

Description

technical field [0001] The invention relates to a storage device, in particular to a storage expansion device and a booting method used in the storage expansion device. Background technique [0002] Limited by the internal space of the host computer and the number of interfaces, the upper limit of the number of storage devices (such as hard disks) that can be used by the computer is often unable to meet the growing demand. The storage expansion device is designed to solve this problem. The storage expansion device is connected to the external storage interface of the host computer through a cable, so it is not limited by the internal space of the host computer. It is limited by the maximum power supply of the host, and a storage expansion device only needs to occupy one storage interface, which can greatly relieve the pressure that the number of storage interfaces of the host cannot meet the demand. [0003] Common storage expansion devices are designed with a switch button...

AI Technical Summary

Problems solved by technology

[0003] Common storage expansion devices are designed with a switch button, after connecting it to the host, press the switch button, so that the storage expansion device is turned on or off, in this way, a power switch button needs to be specially designed, so The design will have problems such as: first, the user needs to manually turn on the power every time, and cannot turn on the power of the hard disk and the fan in time, which is very inconvenient to operate; The cooperation of peripheral circuits is required, resulting in an increase in the cost of the product

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