Regarding the file deduplication and compression feature of Huawei OceanStor hybrid flash storage, which of the following statements is false?

Before planning the storage configuration, an engineer understands the business situation from the customer as follows:
1) For desktop cloud services, most terminals use Windows systems, and a few R&D test terminals use Linux systems;
2) For online transaction business, front-end transactions require fast database response, and database LUNs are stored in storage;
3) The e-commerce website business adopts server virtualization, the virtual machine image is stored in the storage, and the website load is 50%;
4) The NAS service provides common file sharing access to the desktop cloud.
Which of the above businesses is recommended to use the rebooking feature? (Multiple Choice)

When BCManager creates a protection group to set protection for a LUN, the LUN cannot be viewed on the interface. Which of the following may be the cause?

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.

Enterprise A uses the advanced backup solution of Huawei Backup Appliance DPAs to back up database system data.
The enterprise system is as follows: Capacity is 4TB: Incremental backups are performed once a day: Data changes are 10GB per day: Data needs to be retained for one month. In this case, 6.5TB is the minimum size for the volume that fits into the backend storage.