Method used to ensure high data reliability on OceanStor 9000

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The unique InfoProtector function of OceanStor 9000 ensures high data reliability.
OceanStor 9000 ensures that data remains accessible when physical devices are faulty, and automatically recovers data on faulty physical devices. Data protection levels can be flexibly configured by setting different redundant ratios to obtain optimal data reliability and storage space utilization.

Other related questions:
Method used to ensure high system security on OceanStor 9000
OceanStor 9000 security architecture ensures high storage product security at three security levels: storage device security, storage network security, and storage service security. The security design for the management plane ensures the security among the three security levels.

Method used to guarantee data reliability of Kafka
After a Kafka Broker receives a message, it persistently stores the message on a disk. In addition, each partition of a topic has multiple replicas stored on different Broker nodes. If one node is faulty, the replicas on other nodes can be used.

Method used to recover data on OceanStor 9000 V100R001C01
Based on failed objects and data recovery triggering conditions, OceanStor 9000 V100R001C01 recovers data using two methods: ensuring zero data loss on the original disk or node and writing the data in a failed disk or node to other normal disks or nodes through calculations.

Cache flushing time supported by a single BBU of OceanStor V3 after the system is powered off
The BBU can provide power for eight minutes. OceanStor V3 BBUs are in 1+1 backup mode. The cache has enough time to flush dirty data to data coffer disks.

What methods does Kafka use to guarantee data reliability?
After a Kafka Broker receives a message, it persistently stores the message on a disk. In addition, each partition of a topic has multiple replicas stored on different Broker nodes. If one node is faulty, the replicas on other nodes can be used.

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