When two arbiter servers are configured at the arbiter site, if all links between the primary arbiter server and the arrays at both ends are disconnected, and the connection between the standby arbiter server and the arrays at both ends is normal, and the links between the active-active sites are also normal, the system will fail. The primary arbitration server automatically switches to the standby arbitration server within 3 minutes after the failure of the primary arbitration server, and the standby arbitration server performs the arbitration function.

Which of the following statements is wrong about the protocol used by the mirroring channel between controllers of Huawei Oceanstor hybrid flash storage? (Multiple Choice)

A user deploys a backup system for the database business, the production volume capacity is 2TB, and the incremental data change is 20GB/day, which is retained for 1 month, and routine mount tests are performed quarterly.
When doing back-end capacity planning, if using advanced backup, which of the following options is close to the back-end capacity requirements?

Which of the following statements about WORM features are correct? (Multiple Choice)

The customer wishes to deploy a backup system to protect raw data. During the environmental investigation, it was found that the utilization rate of the production network and the CPU utilization rate of the production server were both above 60%. In this case, it is recommended to use the 1AN basic backup network mode.