CE6810-24S2Q-LI and CE6810-48S4Q-EI are stacked using high-speed cables to connect their high-speed Ethernet pore (for example, QSFP+ ports).

In the Cascading Replication DR Solution, the synchronization + asynchronization and asynchronization + asynchronization modes are both supported.

Which of the following statements is correct?
Statement 1: Manually selecting disks for a disk domain is a risky, therefore unadvised, process.
Statement 2: All LUNs in a disk domain must share the same RAID level.

The creation of logical ports is based on physical Ethernet ports, bonded ports or VLANs, and is mainly used for business operations. At the same time, the main port needs to be designated. When the main port fails, the service will be taken over by the failover port.

Intra-city disaster recovery can adopt synchronous remote replication, and Fibre Channel links are recommended. Remote disaster recovery can adopt asynchronous remote replication, and IP links are recommended for cost reduction.