The company plans to deploy a DR system to ensure that services are not interrupted and service data is not lost in the event of a data center failure. A 3DC solution with two active DCs suffices if a 3DC architecture is used.

The international standard SHARE 78 divides the disaster recovery system into 7 levels. Which of the following technologies can be used for the sixth level of data protection?

In a large and medium-sized database application, files such as data, logs, and modification records are stored in the associated LUN1, LDN2, and LDN3, respectively, and remote replication tasks 1, 2, and 3 are created respectively, and the engineer replicates these three remotely. The task is added to the consistency group.
Which of the following statements is true in this situation? (Multiple Choice)

Huawei OceanStor Pacific series storage can connect with Huawei and mainstream big data application software platforms in the industry by providing ( ) Plugin, and access and analyze structured and semi-structured data by supporting standard NAS interfaces. (Please use English abbreviations to fill in)

When HyperMetro of block service is used in Huawei's distributed storage system, which technologies are not used to achieve cross-site data reliability?