When building a disaster recovery system, which of the following solutions should be proposed by a customer to not only ensure the security of data but also ensure that the business is not interrupted?

In the OceanStor 9000 system, although a floating IP is configured on a node, when a node is powered off abnormally, its floating IP needs to be manually migrated to other nodes.

Huawei distributed storage block storage provides volume hot migration capability

In the storage pool of the local storage system, the external LUNs mapped through SmartVirtualization will be created as raw storage logical volumes in the form of virtualized data organization. The raw storage logical volumes created in this way are called ( ).

The business host of a company runs the Linux operating system (take CentOS as an example). The storage engineer needs to use the Linux system performance monitoring tool in the process of collecting performance data.
Which of the following is correct? (Multiple Choice)