Physical isolation-based dual-machine cold backup shared storage system and method

A physical isolation and shared storage technology, which is applied in the direction of response error generation, hardware redundancy for data error detection, etc., can solve problems such as uncontrolled, unavoidable system crashes or important data loss, and achieve redundant The rest of the effect

Pending Publication Date: 2019-06-11
XIAN MICROELECTRONICS TECH INST
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Problems solved by technology

[0002] At present, the data storage in the commonly used embedded computer systems mostly adopts the mode of "single computer + single storage device". Risks such as system crash or loss of important data caused by point failures, which are obviously out of control in some cases that require high reliability of data storage

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  • Physical isolation-based dual-machine cold backup shared storage system and method

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Embodiment Construction

[0024] The invention provides a dual-computer cold backup shared storage system and method based on physical isolation. The host adopts a dual-computer (marked by A and B) cold backup working mode, and integrates two sets of computer hardware with the same function of A and B. In the same chassis, only one of the computers is powered on at the same time. Once the computer on duty fails, it can quickly switch to the backup computer to perform tasks again, realizing redundancy at the whole machine level; physically isolated dual storage devices adopt redundant work Mode, when the flight can access two storage devices at the same time, when one of the storage devices fails, the flight can remove the storage device and access data from the other storage device at the same time, realizing data redundancy backup.

[0025] see figure 1 , based on the physical isolation of dual-machine cold backup shared storage device includes a set of host chassis, two hosts A and B with the same fu...

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Abstract

The invention discloses a dual-machine cold backup shared storage system and method based on physical isolation. The device comprises a host A and a host B, wherein the host A and the host B are integrated in the case; two main storage devices are respectively arranged in the host A and the host B; An embedded computer main control board and a bus switcher are provided. The bus switcher in the host A and the bus switcher in the host B are connected through the storage bus (2), when a regular computer accesses two storage devices at the same time, and when one storage device breaks down, the storage device is removed by the regular computer, and data are accessed from the other storage device at the same time, so that redundant backup of the data is realized. The method can ensure that theembedded computer system does not cause system crash or important data loss due to damage of a single storage device under the long-term working condition.

Description

technical field [0001] The invention belongs to the technical field of embedded computers, and in particular relates to a dual-machine cold backup shared storage system and method based on physical isolation. Background technique [0002] At present, the data storage in the commonly used embedded computer systems mostly adopts the mode of "single machine + single storage device". The data reliability is mainly guaranteed by measures such as improving the quality level of components and parts. Risks such as system crashes or important data loss caused by point failures are obviously out of control in some cases that require high reliability of data storage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a dual-machine cold backup shared storage system and method based on physical isolation, which is used for embedded systems with high reliability requirements for data storage under harsh environmental conditions....

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/20
Inventor 许军贺占庄陈华伟鬲鹏飞张磊
Owner XIAN MICROELECTRONICS TECH INST
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