In the deployment and implementation of storage solutions, which of the following steps need to be performed? (Multiple choice)

Serial communication to the OceanStor V3 controller is configured at:

NAS storage system realizes file system sharing, and the underlying protocol uses iSCSI for data transmission.

Huawei's HypeMetro active-active disaster recovery supports heterogeneous storage, so one OceanStor V3 storage and a third-party storage certified by Huawei can form active-active through HypeMetro.

Huawei OceanStor 9000 uses the DFS to consolidate disk resources of all nodes, providing a unified namespace.