A.The storage layer does not support the following practice: One OceanStor V3 storage system takes over LUNS from a third-party storage system. Then, a third-party LUN and a LUN on another OceanStor V3 storage system form active-active LUNs.

B.The transmission layer uses Huawei OptiX OSN series DWDM devices. Two wavelength division devices are deployed at each site.

C.Quorum software can be installed on a physical server or a virtual machine. The quorum server is connected to the two storage arrays in the active-active data centers over an IP network.

D.On the network layer, at least two independent GSLBs must be deployed at each site for load balancing between the two sites.

A.False

B.True

A.Has all critical components as redundant components.

B.Contains at least one controller module.

C.Is connected to a network using Fiber optic or copper cables.

D.Storage arrays have their disks stored in external disk enclosures.

A.The data object of Wushan file system is composed of a group of Stripe, and the stripe is generated by Erasure Code matrix operation

B.Wushan file system manages the underlying data as objects, which simplifies the management method and metadata overhead

C.Wushan file system adopts object storage mode, and does not need to provide users with traditional system tree structure for users to use

D.Each object of the Wushan file system is a complex of data and data attribute sets. The data attributes can be set according to the application, including data distribution, service quality, etc.

A.After the read fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, all the damaged video file data can be recovered.

B.After the read/write fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, a specific proportion of damaged video file data can be recovered and data can still be written to the video file.

C.InfoRevive ensures continuous availability of video surveillance services when the number of failed nodes or disks exceeds the upper limit.

D.InfoRevive is applicable not only to video surveillance scenarios, but also to TV stations and other media and assets industries.