In a client application scenario, IO business model for the random read, the IO size is about 100K, and the depth of the storage array LUN stripe set to______.
A. 8K
B. 16K
C. 64K
D. 128K
Which remote replication description about the OceanStor V3 file system is correct? (Multiple choice.)
A. The object-based approach to data replication.
B. ROW snapshots based on the cyclical manner of data replication.
C. The user can trigger manually or system timing synchronization.
D. Support dequota quota information of the main file system to the slave, no need for the slave to configure quota.
Which statement is false about the erasure code N+M redundancy implemented by Huawei OceanStor 9000?
A. Different empty directories can be assigned different data protection levels to protect the data that will be stored in these directories.
B. Data written to an OceanStor 9000 is first divided into chunks at a size of 4 GB if the data size is larger than 4GB.
C. The erasure code algorithm calculates M parity chunks for every N consecutive chunks.
D. The utilization rate of storage space under protection is about N/(N+M), and data reliability is determined by M, where a larger value of M results in higher reliability.
Which of the following statements about the info stamper in an OceanStor 9000 storage system is not correct?
A. Oceanstor 9000 uses COW technology for metadata
B. Oceanstor 9000 uses ROW technology for data
C. Between snapshots of different versions, there is common data between the snapshot and the current year
D. According to the snapshot version data objects have a backward dependency, so when reading the snapshot data, according to the object dependencies, the system determines from which object to
read.
A TV station plans to adopt Huawei OceanStor 9000 as a back-end storage system, with 10 OceanStor 9000 C nodes, planned to be deployed in 4 standard cabinets, with all backends connected to a pair of stacked back-end CE6850 switches. There is no single customer in the existing networking standalone management network. Which of the network IP address planning described below is incorrect?
A. You can plan back-end storage network for 9000 internal communications, without planning gateway address, and front-end network with the same network segment IP address.
B. Oceanstor 9000 front-end network and management network can be considered together, planning for the same network segment.
C. Back-end CE6850 switches need to use four stacked cables for stacking connection to ensure bandwidth requirements
D. The external NTP server address and the OceanStor 9000 front-end network need to communicate to ensure that the OceanStor 9000 system and client applications maintain time synchronization.
Which of the following is not a disaster recovery manual restart configuration necessary to restore the production system (Multiple choice.)
A. Stop the current production business
B. Add the remote device to the original production array
C. With the disaster recovery array as the master LUN and the original production array as the slave LUN, create the remote replication relationship between the DR and the production end and wait for the initial synchronization to be completed.
D. Make an incremental synchronization.
E. Delete the original production array consistency group.
What is correct about the reconstruction of the Huawei OceanStor V3 storage system? (Multiple choice.)
A. It can quickly recover valid data, not updated data does not need to be restored.
B. Complete reconstruction requires data difference log information.
C. Recovery Refactoring uses a scenario where the disk can not be used for downgrade.
D. In the event of a sudden disk failure recovery reconstruction.
A user performs the following operations on an OceanStor 9000:
1.
Create a user group named Group01 and sets a quota for Group01 in the /home/aroup0t directory as follows: Recommended threshold: 10 GB
Soft threshold: 15 GB. Grace period: 10 days Hard threshold: 20 6B
2.
Create a user account named User01 in Group01 and sets a quota for User01 in the /home/group01 directory as follows: Recommended threshold: 8 GB Soft threshold: 18 GB Grace period: 15 days Hard threshold: 25 68
Which quota applies to User01 in the /home/group01 directory?
A. Recommended threshold: 10 GB Soft threshold: 15 GB Grace period: 10 days Hard threshold: 20 GB
B. Recommended threshold: 10 GB Soft threshold: 18 GB Grace period: 15 days Hard threshold: 20 GB
C. Recommended threshold: 8 GB Soft threshold: 18 GB Grace period: 15 days Hard threshold: 25 GB
D. Recommended threshold: 8 GB Soft threshold: 15 GB Grace period: 10 days Hard threshold: 20 GB
The client environment is the HP-UX11i v2 operating system, the HBA is the AD193A, and the operating system comes with the driver. The storage array is Huawei OceanStor V3. When the LUN mapping between HP-UX and the storage system is completed, you can not change the topology mode of the FC host interface card on the storage system.
A. True
B. False
In an HPUX system, you use the lv image lvreduce or lvsplit command / dev / vg01 / lv - test within a mirror. Which command will test the implementation of the following command lvsplist / dev / vg01 / lv -, using vgdisplay-v system to see what the lv is.
A. LV-test
B. lv-testa
C. lv-testb
D. lv-testbackup
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