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What is the correct description of the Huawei Oceanstor 9000 read andwrite process?

A.

The CA is responsible for initiating the metadata query

B.

If the global cache read hit, read from the global cache without having to go to the OBS to read the stripe data

C.

Reading data, the MDS is responsible for assembling the slitting data

D.

When writing data, calculate the redundant data by MDS

In an8500 Clustered NAS System there are several modules in the cluster communication architecture that work together to implement cluster communication such as resource agent, HAD, Gab, and LLT. Describe the correct mechanism for these. (Multiple choice.)

A.

Agent-Agent monitors the resources of each system and provides the status to each machine's HAD

B.

HAD Cluster service that monitors and manages the cluster's NAS

C.

Under the management of the master node of the cluster, Gab sends the communication information between the cluster members to the point communication

D.

LLT (Low-Latency Transport) sends information to all nodes in the cluster through a low-latency delivery protocol

When the N8500 (V200R001) clustered NAS operating system is archived as a banknote imaging platform, the informationabout storage units and networks is set. Choose the correct statement.

A.

When the access to the N8500 is all on the intranet, and the client traffic is not equal, it is recommended to configure the "balance-alb" mode (that is, bond 6 mode).

B.

When creating a LUN, write business for a long time, the stripe depth recommended 512KB.

C.

If the RAID group is configured as RAID 6, the number of member disks is recommended to be 9 disks, and it is not recommended to configure the RAID group.

D.

Fencing LUN should be placed in the same RAID group.

Which of the following descriptions about the InfoEqualizer features of the OceanStor 9000 storage system are incorrect. (Multiple Selections)

A.

Dynamic domain name, which returns the dynamic IP address of the node for the client, supports the failover function and is recommended for CIFS protocol sharing

B.

Static domain name, which returns the domain name of the node's static external IP address toclients, is recommended for NFS protocol sharing

C.

dynamic external IP address, node failure, the dynamic IP address can be automatically assigned to other working nodes, the client can pass againThis IP address is connected to the OceanStor 9000

D.

static external IP address, the node fails, the client can not access the oceanstor 9000 through the IP address

In two OceanStor unified storage arrays configured with remote replication, the optimal path for remote replication data transmission is:

A.

Host - "Linking Primary Array Controller -" Linking From Array Controller -> (Forwarding) Controller operatingfrom a LUN

B.

Host - "Primary LUN Controller -" (Forwarding) Primary Device Controller for Linking - "Link from the array controller

C.

Host - Primary LUN Controller -> (Forwarding) Link Primary Fabric Controller - "Linking From Array Controller-"Hair) from LUn work controller

D.

Host - "Link-connected Primary Array Controller -" Link-connected slave array

The InfoEqualizer DNS IP address needs to be the same as the OceanStor 9000 front-end network and customer application network for network interoperability

A.

Correct

B.

mistakes

In an active-active disaster recovery solution configured with inter-site FC switch connection. When the distance between sites exceeds _____ km, you need toconfigure long-distance transmission.

A.

1KM

B.

10KM

C.

25KM

D.

50KM

When a Simpana backup client failed to perform the backuptask, the status reported the following error "failed to connect to indexing process from client [client] to [MediaAgent * MediaAgent * 8400 * 8402] .Error [Inability to connect to remote machine[MediaAgent] .Please check Network Connectivity or the machine may be down]." You check the client and the media service devices are normal. The possible reasons for this problem are:

A.

The client JobResults directory is full

B.

The media server IndexCache directory is full

C.

The media server can not resolve theclient host name

D.

The client can not resolve the media server host name

A customer production center is in Chengdu with a disaster recovery center in Shenzhen, using VIS 6600T remote replicationcapabilities to meet the remote disaster recovery. Which of the following about the VIS6600T copy function is correct?

A.

DCM (data change map) is mainly used to ensure that the data in the production center is copied to the disaster recovery center according to the order sent by the host to ensure the data consistency

B.

Production, disaster recovery data volume and disaster recovery must be consistent, the name can be inconsistent

C.

Each business configuration a copy volume group, multiple copyvolume group can use the same virtual IP

D.

virtual IP and physical IP must be in the same network segment

Which of the following are Oracle11g logical backup methods?

(Multiple choice)

A.

EXP

B.

RMAN

C.

EXPdp

D.

imp