HyperMetro uses cross-site real-time data mirroring to ensure real-time data synchronization between the storage arrays at two sites. Upon receiving a write I/O, the storage array in a data center generates a write log. In the log, only address information is recorded, but data is not recorded. To ensure performance, log information is recorded in memory space capable of power failure protection.

Which of the following features in Huawei Oceanstor 9000 (C30) does not require the activation of the corresponding license?

The backup solution can prevent the loss of production data or the data center suffers a devastating disaster, the recovery time is short, and the business continuity is guaranteed.

Physical tape libraries have the following disadvantages: The mechanical failure rate is relatively high, and tapes are vulnerable to the adverse impact of the environment (temperature, humidity, and dusts).

During the maintenance of the Huawei Oceanstor 9000 system, a dedicated person is required to keep the system root password. When transmitting the password, pay attention to encryption, and try to avoid transmitting the password by mail.