A company purchased a set of Huawei horizontally extended file storage for the video surveillance system, and enabled the read and write fault tolerance of the InfoRevive feature The mode provides data fault tolerance and configures the data protection level of EC to 4+1. If 2 pieces of data are invalid,
How does InfoRevive feature guarantee business continuity and availability
- For the write operation, only 3 copies return a write success response, and the 2 copies that fail to write are no longer filled with 0s, and they are processed according to the striped write success.
- For the read operation, the system only successfully read 3 copies, and returns 3 copies of data that were successfully read, and the 2 copies that failed to read are all filled with 0s.
- For the read operation, the system only successfully read 3 copies, and returns 3 copies of successfully read data, and the 2 copies that failed to read pass the check data recover
- For the write operation, only 3 copies return a write success response, and the 2 copies that failed to write are all filled with 0s, and the write succeeds according to the section
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