A data failure processing method, device and system

Abstract

The embodiment of the invention discloses a data invalidation processing method, equipment and system. The invention relates to the field of computers. Data failure can be judged according to a preset data failure identification, and correspondingly different processing methods are adopted according to the type and degree of influence of failure data, thereby improving the reliability of equipment or systems. The method provided by the embodiment of the present invention includes: sending a read request to a storage device, where the read request includes address information of the data to be read, so that the storage device searches for the data to be read according to the address information of the data to be read Fetching data; receiving the retention value sent by the storage device due to the failure of the data to be read; if it is judged that the retention value sent by the storage device meets the preset data failure condition, then according to the preset failure data processing strategy The reserved value sent by the storage device is processed accordingly.

Description

technical field [0001] The invention relates to the field of computers, in particular to a data failure processing method, device and system. Background technique [0002] The CPU is the core component of a computer, which controls the operation of the entire computer and performs calculations. The CPU works by reading instructions and data stored in the memory, so the memory plays a very important role in the normal operation of the CPU. [0003] However, due to various reasons, some data in the memory may become invalid. Memory data failure refers to the fact that the value read from a certain bit of the memory is expected to be 0 (or 1), but the actual read result is 1 (or 1). 0). In the prior art, the memory generally sends wrong data to the CPU after data failure, and at the same time sends an exception to the CPU; the CPU can usually handle data exceptions in two ways: 1. The CPU treats the invalid data as normal data and does not Any processing; 2. Restore data by ...

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Problems solved by technology

[0005] The CPU cannot identify invalid data, so the processing method cannot be selected according to the type and importance of the data. For example, when the invalid data is very important data, such as bank, stock and other related data, if the invalid data is regarded as Normal data processing may cause serious errors; if the invalid data is non-important data, such as online ticket booking and other related data, if the error is recovered by reset, the user's request cannot be responded to in time, which will affect the CPU. Reliability; and with the increase of memory capacity and the improvement of technology, the probability of memory data failure is getting higher and higher, which leads to a corresponding higher probability of CPU reset, seriously affecting the reliability of CPU

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