In the process of data migration based on the heterogeneous virtualization function, if there are insufficient storage ports, consider sharing ports with the "active-active" and "remote replication" services when the local storage system and the heterogeneous storage system are networked.

Before implementing the BCManager active/standby disaster recovery solution, it is necessary to collect the basic information of the production site.
In the scenario of Linux+Oracle RAC, which of the following information collection methods is correct? [(Multiple Choice)

A company purchased a set of Huawei hybrid flash devices to run services on a virtualization platform. The host system uses Huawei multipathing software and uses an Ethernet switch to connect to the two controllers of the storage system. Storage engineers discover service outages and delays on hosts. Upon inspection, they found that the active link of the multipath software was being switched continuously. This problem can be solved by disassembling the multi- directional software on the premise of ensuring service reliability.

A company's data center deploys a set of Huawei hybrid flash storage, and the storage engineer uses the trust feature to protect the LUN data. The storage engineer's misoperation leads to the loss of all storage LUN data. You can use snapshots to restore production data.

In the IO processing of distributed object service, after authentication, OSC uses Plog Server to perform EC calculation on data, and writes concurrently to Plog Client for persistence.