In HUAWEI OceanStor, which licensed feature is best described as: periodically detects hot-spot data and promotes them from low-speed storage media to high-speed media.

In the backup system, the data that needs to be backed up must go through the media server before being stored in the backup medium.

Grid storage employs the combination of large scale serial distributed storage to provide even distribution of storage across all nodes.

An e-commerce website usually has a relatively stable business volume and buys its own servers to build a private cloud operation. However, when the Double Eleven sales promotion comes, the business volume is very large, and the server is rented from the public cloud of the operator to share the holiday load. So, what does the cloud computing deployment model belong to?

The steps of asynchronous remote replication technology at multiple points in time. Which of the following statements is correct?
(1) A new time slice (T2, P2) is generated in the cache of the primary LUN and the secondary LUN when each replication cycle starts
(2) The data newly written by the host is cached in the time slice T2 of the main LUN Cache, and the response host is completed
(3) The data received by the master and slave LUN will be downloaded to disk respectively
(4) Copy the data of time slice T1 directly to the slave LUN, and write it into the time slice P2 of the slave LUN