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OceanStor 9000 V300R006C00 File System Feature Guide 12

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Application Scenarios

Application Scenarios

The InfoRevive feature of the OceanStor 9000 ensure service continuity and data security. The features can be used to centrally monitor and manage remote devices, meeting remote monitoring requirements of various industries, such as transportation, water conservancy, oil, banking, and telecom.

Continuous Data Reads/Writes

For the video surveillance system, it is unacceptable if a video cannot be played after the video integrity is compromised. However, it is acceptable if the video can still be played and only image blur occurs sometimes.

To protect customer data and satisfy service requirements, OceanStor 9000 provides the InfoRevive feature. When the number of faulty nodes or disks exceeds the upper limit, InfoRevive allows the system to read part of data and continue to write data, ensuring service continuity.

Assume that two data strips are faulty and the data protection level is 4+1. The disks in grey are faulty. When the InfoRevive feature is enabled, the system successfully reads and returns three data copies, and adds 0s to the two copies that have failed to be read and returns the two copies. Three copies send write success acknowledgement, the system does not add 0s to the failed two write copies but processes the failed copies as stripe write successes.

Figure 9-2  Consecutive data reads/writes
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Updated: 2019-06-27

Document ID: EDOC1000122519

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