METHOD, APPARATUS, LOGIC DEVICE AND STORAGE SYSTEM FOR POWER-FAIL PROTECTION
First Claim
1. A method for power-fail protection, comprising:
- supplying, by a battery, power to a south bridge chip (SBC), a non-volatile flash storage medium, an interface conversion circuit (ICC) between the SBC and the non-volatile flash storage medium and a memory when a system power supply fails; and
transmitting unsaved data in the memory to the corresponding non-volatile flash storage medium via the ICC, by use of an unused bus interface of the SBC;
wherein the ICC is configured to convert a bus interface of the SBC into a corresponding bus interface of the non-volatile flash storage medium.
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0 Petitions
Accused Products
Abstract
A method, apparatus, logic device, and storage system for power-fail protection are disclosed. The method includes: when a system power supply fails, supplying, by a battery, power to a south bridge chip (SBC), a non-volatile flash storage medium, an interface conversion circuit (ICC) between the SBC and the non-volatile flash storage medium and a memory; and transmitting unsaved data in the memory to the corresponding non-volatile flash storage medium via the ICC, by using an unused bus interface of the SBC. The ICC converts a bus interface of the SBC into a corresponding bus interface of the non-volatile flash storage medium. The embodiments of the invention can effectively solve problems of data loss in case of system power failure and short retention time, and realize protection operation in case of system power failure, convenient upgrading memory capacity, and saving system space, without adding cost and total capacity of battery.
43 Citations
13 Claims
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1. A method for power-fail protection, comprising:
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supplying, by a battery, power to a south bridge chip (SBC), a non-volatile flash storage medium, an interface conversion circuit (ICC) between the SBC and the non-volatile flash storage medium and a memory when a system power supply fails; and transmitting unsaved data in the memory to the corresponding non-volatile flash storage medium via the ICC, by use of an unused bus interface of the SBC; wherein the ICC is configured to convert a bus interface of the SBC into a corresponding bus interface of the non-volatile flash storage medium. - View Dependent Claims (2, 3, 4)
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5. An apparatus for power-fail protection, comprising:
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a south bridge chip (SBC), configured to control interfaces of a storage system; a non-volatile flash storage medium, configured to storing data; and an Interface conversion circuit (ICC) connected to the SBC and the non-volatile flash storage medium, configured to convert a bus interface of the SBC into a corresponding bus interface of the non-volatile flash storage medium; and
when a system power supply fails transmit data not stored in a memory to the corresponding non-volatile flash storage medium via a bus interface connected to the SBC. - View Dependent Claims (6, 7, 8, 9)
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10. A logic device, comprising at least one conversion unit, configured to convert a bus interface of a South Bridge Chip (SBC) into a corresponding bus interface of at least one non-volatile storage mediums;
wherein one end of each conversion unit is connected to the bus interface of the SBC, and other end of each conversion unit is connected to the corresponding bus interface of the non-volatile storage mediums. - View Dependent Claims (11, 12)
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13. A storage system, comprising:
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a system power supply, configured to supply the storage system with power under normal conditions of the system; a South Bridge Chip (SBC), configured to control interfaces of the storage system; a non-volatile flash storage medium, configured to storing data; an Interface Conversion Circuit connected to the SBC and the non-volatile flash storage medium, configured to convert a bus interface of the SBC into a bus interface of the non-volatile flash storage medium; a system memory connected to a central processing unit (CPU), configured to directly communicate with the CPU and store data and program which are used currently; a battery connected to the SBC, the non-volatile flash storage medium, the ICC, the system memory and the CPU, configured to supply power to these connected components in case of system power failure; and the CPU connected to the SBC and the system memory, configured to transmit data not stored in the system memory to the corresponding non-volatile flash storage medium via the ICC, by use of an unused bus interface of the SBC, in case of system power failure.
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Specification