The SmartPatition for OceaStor V3 storage can allocate independent cache space for different LUN. The capacity of the cache space is shared by both read and write operations.
- A . TRUE
- B . FALSE
Which configuration principle of Simpana backup media pool is wrong?
- A . according to the different retention time to divide the media pool.
- B . the number of media pool as much as possible to improve the performance and utilization.
- C . according to the use of tape to divide the media pool.
- D . according to the number or use of a storage policy to divide.
Which description of OceanStor V3 remote file system copy is correct? (Multiple choice)
- A . using the object-based layer way to get the data replication.
- B . using the ROW-based snapshot periodic ratio way to get the data replication.
- C . can trigger or trigger system timing synchronization manually by the user.
- D . support the terminal file system Quota information copy to the slave side and slave side is no need to set allocation Quota.
Which of the following is not a feature that Huawei uses in migration?
- A . Migration Director
- B . Smart Migration
- C . Smart Virtulization
- D . SVC
About Huawei OceanStor18000 Smart Matrix architecture, which is not correct?
- A . Scale-out: storage resources to expand as needed to increase the engine performance can be realized, capacity increases linearly.
- B . All exchange: use PCIE 1.0 Total exchange network, to provide sufficient switching bandwidth to meet the stringent performance requirements.
- C . inherent load balancing: Full live controller, balanced load sharing, improve storage resource utilization.
- D . fully redundant: all component redundancy, intelligent switching component failure to meet the stringent business continuity requirements.
Currently, there are more and more demand for centralized storage of different types of services, and different types of services have different storage requirements.
A company plans to purchase a set of OceanStor V3 storage, configure 10 600GB SSD disks, 20 1.2T SAS disks, 40 4TB SATA disks, and plan to deploy oracle database, Exchange mail application and video application on this storage device. Which of the following configurations can improve overall business performance? (Multiple choice)
- A . Set 4 SSD to SmartTien and configure all remaining disks into one disk domain and one storage pool and enable SmartTier.
- B . For the LUN that provides the Oracle datastore, the write cache is set to WriteBack.
- C . Create separate disk domains and storage pools for video applications.
- D . Enable SmartTier for LUN that provide mail data storage, and set the migration policy to automatic migration.
For huawei OceanStor V3 storage system prefetch strategy, which is true?
- A . smart prefetching is suit for single data flow reading application, or unable to determine whether the reading application is sequentially scene.
- B . variable prefetching is suit for fixed-size size sequentially reading application. Such as multi-user streaming media on demand, users use the same stream.
- C . fixed prefetching is suitable for the database application.
- D . prefetch not suitable for multi-user multimedia on demand.
Which of the following description on the dual-live pair running status and host access status in HyperMetro is wrong?
- A . double-live Pair running status: suspended
Host Access Status: The primary LUN is readable and writable, and the secondary LUN is not readable or writable - B . double-live Pair running status: synchronization
Host Access Status: The primary LUN is readable and writable, and the secondary LUN is not readable or writable - C . double-live Pair running status: normal
Host Access Status: The primary LUN is readable and writable and the secondary LUN is readable and writable. - D . double-live Pair running status: mandatory start
Host Access Status: The primary LUN is readable and writable and the secondary LUN is readable and writable.
The customer environment is RedHat 6, and the HBA is Emulex LPe12002. The operating system is powered by Huawei OceanStor V3. When the storage system and the host environment are directly connected to each other, the storage host port can select the P2P topology mode.
- A . TRUE
- B . FALSE
For common SOL Server 2005 and 2008, users can connect to database engine of a specified server through SQL Server Management Studio tool. There are two connection authentication ways in the "Connection" group, wherein in ( ) mode, need to provide a user ID and password required when client application connects.
- A . SQL Server Authentication
- B . Windows Authentication
- C . When the superuser login
- D . when landing in other ways
In the OceanStor V3 storage system, about the Cache high and low water level, which is correct? (Multiple choice)
- A . The time that IO stays in the Cache is closely related to the setting of the low water level value. When the low water level is set higher, the issued IO can get more integration opportunities, thus improving the performance of random writes.
- B . When the business pressure is high, you can increase the high water level appropriately, avoid frequently triggering the high-speed brushing, and make the system stable in the middle and low speed brushing.
- C . When the write strategy is write-back, the Cache controls the storage capacity and the brush rate of dirty data through the high and low water levels.
- D . By default, the low watermark value set by the system is 20. In the Oracle OLTP service scenario, the low water level can be appropriately increased to optimize the write performance.
Which steps required on the target side in the Exchange 2013 DAG migration solution? (Multiple choice)
- A . new create CAS server
- B . new create Mailbox server
- C . Add the target Mailbox server to DAGS
- D . Add a database copy to the source Mailbox server
The three levels of Simpana backup architecture system are: (Multiple choice)
- A . backup server
- B . Media Server
- C . backup media
- D . backup client
Under HPUX system has two user volume group: vg01 and vg02, run the following command: vgexport -v -s -p -m/tmp/vg01.map /dev/vg01 and vgexport -v -s -m /tmp/vg01.map /dev/vg02, execute vgdisplay can check which volume group?
- A . vg01
- B . vg02
- C . vg01, vg02
- D . empty
In the process of SAN storage migration of AIX LVM, the design of data migration is a very important stage. Before access to the new equipment, you need to consider some issues help for the design of data migration, including ( ) (Multiple choice)
- A . could/should this device be connected to the existing SAN?
- B . how is AIX system connected to new storage devices
- C . how can AIX system and data migrate from the old disk to the new disk
- D . Whether the format of the file system, genus group of storage files are compatible with the new device volume
In the OceanStor 9000 storage system, when the InfoReplicator feature master-slave switchover, it supports automatic switching of quotas, share permissions, stripe size and directory redundancy ratio.
- A . TRUE
- B . FALSE
In the two places but with three-center disaster recovery solutions provided by Huawei, about the relevant network and replication technology’s selection, which of the following combinations are recommended? (Multiple choice)
- A . Same city Ethernet, asynchronous data replication
- B . Same city FC networking, synchronous data replication
- C . remote Ethernet, asynchronous data replication
- D . offsite FC networking, synchronous data replication
In Oracle RAC deployment, after completing installing Grid software, what is the common used command description? (Multiple choice)
- A . Check the cluster nodes:
olsnodes -n - B . Check the status of the cluster:
crsctl check cluster-all
crsctl check crs - C . Check clusterware resource status:
crsctl stat ser -t - D . Check the Oracle ASM operating states:
ocrcheck
When a node of the OceanStor 9000 fails, which of the following statements are correct?
- A . automatically start data reconstruction
- B . Need to manually start data reconstruction
- C . Can’t start data reconstruction
- D . You should start the configuration import and then start the refactoring.
Which of the following steps are not part of the homogeneous online migration scheme are?
- A . Source storage creates a spoofed eDevLUN and maps it to the target storage
- B . Create a SmartMigration migration task on the target storage
- C . Use the multipath command on the host to scan the disk and check the disk link information.
- D . Consistent split migration task after migration is complete
Which of the statement about OceanStor V3 storage system tuning process is wrong?
- A . need to understand the business (applications and data, etc.), specific tuning goals.
- B . after tuning all systems involved in performance bottlenecks configuration parameters, and then determine whether the tuning goals is completed.
- C . before tuning to be backed up business systems and data.
- D . process monitoring and analysis of the business performance data, confirm the performance bottlenecks and analyze the root cause.
In the HyperMetro dual-live scenario, the storage for Data Center A and the storage group for Data Center B are built as a cross-site cluster. The following description of the cluster which is correct? (Multiple choice)
- A . All storage in the cluster provides an application server with no difference in parallel access.
- B . FC or IP can be used as the communication link between site A and site B in the cluster: The FC link can provide higher transmission efficiency, the IP link is easy to deploy without distance restrictions.
- C . Dual-active LUN on two storage arrays in a cluster form a virtual dual-active LUN. Real-time mirroring keeps real-time data of dual-active member LUN in both data centers in real time.
- D . In the cluster, the controllers are equal. When one controller fails, the cluster switches the service to a lighter-loaded controller according to the load of each controller.
Which of the following LUN may the Huawei OceanStor v3 SmartErase feature be applied to?
- A . Thin LUN
- B . Snapshot LUN
- C . Thick LUN
Dual-control 5500V3 online migration S2600 storage, when the migration rate selects "medium speed", what is the maximum migration rate?
- A . 28OMB/S
- B . 15OMB/S
- C . 80OMB/S
- D . 40OMB/S
Some customer wants to deploy a OceanStor V3 to meet its capacity and performance requirements. Which of the following do we need to consider the specific hard disk configuration number? (Multiple choice)
- A . bare capacity of hard disk
- B . metadata space size
- C . Type of Hard disk
- D . RAID type
Hot Standby strategy in Oceanstor 1800 is set to high, all using 1TB hard disk, when in the hard disk domain respectively have 8 pieces of hard disk,80 pieces of hard disk,180 pieces of hard disk and 280 pieces of hard disk, how much hot spare space will the system assign respectively? (Unit: TB)
- A . 1, 7, 8, 9
- B . 1, 7, 15, 24
- C . 1, 4, 8, 8
- D . 1, 5, 7, 8
A company purchased two Huawei OceanStor 9000 devices, in order to protect the security of data, one set provides storage space for the production site, and the other set provides data redundancy on the disaster site.
Establish a remote replication between two sets of Huawei QceanStor 9000 storage systems, about the related configuration of creating remote replication Pair synchronisation strategy, the incorrect description is:
- A . Recovery strategy supports manual and automatic the two modes.
- B . Sync rate has high, medium and low, the three grades.
- C . Synchronization Type has manual, time wait after the synchronization start, time wait after the synchronization complete, the three kinds of.
- D . When the "Synchronization Type" set as "manual", no need to set the timing length. When the "Synchronization Type" set as "time wait after the synchronization start" or "time wait after the synchronization complete", it need to set the timing length.
In the HyperMetro Active-Active Data Center solution, which of the following statements about the preferred array is correct?
- A . Specify a preferred access array on the OceanStor Ultra Path
- B . Specify a preferred access array on the storage array
- C . Selecting the preferred access array based on the business characteristics by the upper application
- D . Specify a preferred access array when use the HyperMetro feature.
An enterprise purchased a set of Huawei OceanStor 9000 storage, the company’s part of the basic software is stored in a directory, that requires all staff can access the sharing, in order to facilitate the operation, do not require to enter the account password when accessing. Engineers can do this when configuring, the basic software directory is set for NFS sharing, and check "guest Enable" option under the sharing.
- A . TRUE
- B . FALSE
Which of the following technologies can VMware VADP combined use for backup window double compression?
- A . vCloud Director
- B . IntelliSnap
- C . DASH COPY
- D . Virtualize Me