In an Internet company's storage system, two businesses, A and B, are constantly competing for cache and network resources, causing other businesses to wait longer. In order to solve this problem, it is necessary to configure cache partition and flow control technology. Among them, business A is a transaction processing application, business B is an analytical query application, and it needs to ensure that business A responds immediately.
So how to configure it reasonably? (Multiple Choice)

Which of the following storage devices are non volatile?
(Multiple Choice)

Description 1: There is an interconnection line between the controllers of the storage system. If the controller is broken, it belongs to it.
The working controller of the managed LUN will be switched to a working controller.
Description 2: The working controller and home controller of a LUN must be unified into one controller.

Which of the following are the FC topology? (Multiple Choice)

Statement 1: A RAID composed of several hard disks is called a physical volume.
Statement 2: RAID 5 can increase the read and write speed and provide a certain degree of data security, but when a single hard disk fails, the read and write performance will be greatly reduced.