Database applications are one of the important applications supporting storage arrays. Different application configurations and parameter settings may affect the service performance. In order to store arrays (such as OceanStor V3 series storage) with SQL server applications with the best performance, which of the following statements is wrong:

A. OLTP database generally have a large number of random write, it is recommended to choose RAID 10 to store data.

B. In order to improve write performance, all SQL server database data stored in the LUN write strategy is configured to "write back the image".

C. Because the size of the SQL server page is 8K, in order to ensure the best performance of the database, NTFS allocated block size should not be less than 8KB.

D. SQL Server database instance memory size and recovery mode of choice has no effect on the performance of the database.

Which of the following copy is supported by OceanStor V3 remote file system?

A. Synchronous and asynchronous replication

B. Simultaneous replication

C. Asynchronous replication

D. support multiple file system consistency replication

Which of the following information about the InfoEqualizer function of Huawei OceanStor 9000 is correct? (Multiple choice)

A. When using the InfoEqualizer function, you need to configure DNS. If you use an external DNS server, when configuring the DNS server, there is a setting of "reverse lookup zone name", network ID setting in this tab, you need to input network ID in reverse order.

B. When there is a DNS server in the user network, the DNS server in the user network does not need to configure the forwarding record. When the user network without DNS service server, configure the InfoEqualizer DNS IP address as the DNS server's address on the client.

C. The root domain name is the domain name InfoEqualizer configured for the cluster. This domain name must be configured as the fully qualified domain name, that is, the domain name that includes the root node.

D. The domain name of the partition is configured as the relative domain name, and the root domain name of the InfoEqualizer is automatically taken as the suffix of the domain name, and the full name of the domain name is formed with maximum support of 32 partitions.

Which of the read and write strategies of Huawei Oceanstor V3 storage system is correct?

A. Read and write strategies include permanent, default, recycling.

B. Recycling strategy is suitable for business scenarios that require high performance and small amount of data.

C. Select out the recycling strategy when the data or write data is the lowest priority.

D. Resident strategy is suitable for large read and write data, and read-only scenes.

Which description of the N8000 Clustered NAS file system snapshot features and their application is wrong?

A. Snapshot file system can be dedicated as a separate space to the client.

B. For a file system can create multiple snapshots, support snapshots of the snapshot

C. Snapshot file system provides only read-only access to external, it cannot provide write operations

D. File System Snapshot Instantly copy the source file system completely available copy, when due to viruses or man-made misuse and other causes of the original file system is not available, the rollback of the snapshot can restore the original file system.

In order to support business expansion, a large enterprise has decided to purchase two Huawei OceanStor 9000 storage systems to replace the existing NAS systems. The two systems were deployed in two cities. The main operating system of the business operation time is 8: 00-18: 00. Which of the following description of disaster recovery on disaster recovery applications planning is correct? (Multiple choice.)

A. Info replication as an optional feature of Huawei OceanStor 9000de, the production sites and disaster recovery sites need only the production site to purchase info replicator feature of the license

B. Plan a separate directory for each type of service using the Huawei OceanStor 9000 system at the D and Y sites in the system's root directory as a remote copy of the master directory, and shared to the corresponding business server i

C. Because the client's business traffic is mainly concentrated in the daytime working hours, you can not set the replication zone bandwidth limit, the synchronization task on the non-workers make time, take full advantage of node bandwidth

D. For each type of business to create a pair for the type of business data replication synchronization

WMware backup transfer mode NBD SSL refers to the backup agent through the TCP / IP network to read the backup data, VSA and ESX between encrypted transmission.

A. True

B. False

Customers plan to use the intelligent partition feature of the OceanStor 18800 to implement LUN isolation and ensure the cache capacity of some special LUNs Volume. To do this, you must create smart partition meeting which of the following prerequisites? (Multiple choice)

A. All controller nodes are in normal state

B. The number of partitions created has not reached the limit

C. Engine remaining cache of not less than 256M

D. Create a partition read and write cache the same size

A company's daily real-time online transaction data is about 500G and 30G daily new data, the new data is frequently called within a week after the production. The company employees 80 people, each person's mailbox space is 5G, and the average space utilization rate is 60%. For a six months demand, A company should configure which of the following?

A. High-performance layer 550G, performance layer 250G; capacity layer 6T

B. High-performance layer 400G, performance layer 250G; capacity layer 7T

C. High-performance layer 800G, performance layer 400G; capacity layer 6T

D. high-performance layer 600G, performance layer 300G; capacity layer 7T

A customer's database application is running on an OceanStor V3 storage system. The database uses six LUNs. The customer wants to migrate data from the OceanStor V3 storage system to an OceanStor 18000 series storage system based on the functions provided at the storage side. Which statements are true? (Multiple Choice)

A. If you use the HyperReplication function to migrate data on multiple LUNs used by the database, you must add multiple remote replication tasks to one consistency group.

B. The HyperReplication function can implement online data migration.

C. After data is migrated using HyperCopy or HyperReplication, services can be started without the need to make any configuration on the host.

D. If data is migrated using HyperCopy, the migration speed can be dynamically changed during the copy process.