HPUX operating system Mirrordisk / UX software must be installed before it can be mirrored by LVM.
A. True
B. False
Which of the following statements are incorrect regarding the Huawei OceanStor 9000 file system?
A. Metadata is achieved by mirroring node redundancy
B. Oceanstor 9000 uses a dynamic subtree to organize metadata
C. The metadata is stored object-wise in the Oceanstor 9000 system
D. The metadata is actually stored on the SSD of the storage node
In a client OceanStor V3 storage array, the engineer examines the log information, the search found that power failure time point has the following: "1 and 1 or 2 and 3 -" not exist ", you can determine the reason for the system failure to start is not inserted into the safe disk
A. True
B. False
Engineers in strict accordance with the Oceanstor 9000 software installation and operation guide are to complete the pre-inspection and configuration, the software deployment process displayed ome exceptions, the following treatment is appropriate (multiple choice)
A. For the "configuration operating system failed" error, check the node / var / log partition and clean up the partition, initialize the system, and then re-run the software deploy
B. If it is not a failure, restart the deployment after reinstalling the deploy deployment package
C. After the deployment fails, run the sh /opt/huawei/deploy/script/clean.sh command on each node to initialize the system and restart the software department
D. After deployment abnormalities, reboot all nodes, reinstall oceanstor tookit, and start the software deployment
An MSCS Two-Node Cluster Interconnects with Disk Arrays via the iSCSI Protocol in a Multipathing Environment and Multipathing Software installed on Each Node. You build the cluster configuration using the wizard and part of the description shows that the quorum disk and resource disk can not be online. The following statement is correct regarding this scenario:
A. The shared disk file system uses the GPT format that caused the quorum disk to fail Online
B. The quorum disk can not be online due to the cluster feature that does not enable multipathing software
C. The MSCS Cluster service does not bring the volume resource online. The resource disk can not be online
D. Heartbeat network timeout causes arbitration disk and resource disk probability online
Which of the following is correct regarding the Oracle RAC deployment installed Grid package? (multiple choice)
A. To check the cluster node use the command: olsnodes -n
B. To check the cluster status use the command: crsctl check cluster -all crsctl check crs
C. To check cluterware resource status use the command: crsctl stat ser -t
D. To check oracle ASM operating status use the command: ocrcheck
Some OceanStor V3 storage resources are mapped to a host as raw devices. The host then creates dedicated file systems on these raw devices. A test tool is used to create a large number of 13 KB files in the file systems. The test tool is also used to read those files randomly for testing the response. In this circumstance, changing the prefetch policy of the tested LUN to constant prefetch and setting the prefetch length to 16 KB can increase the system performance.
A. True
B. False
In a clustered environment, data is placed on the shared storage, and identities between peers are equal and have the same access to the data. It is required that the clusterware have a control mechanism for concurrent access to such peer permissions. In Oracle RAC, you use the _____ mechanism to do multiple node-to-node collisions control of access.
A. vip
B. ocr
C. dlm
D. asm
True of False, N8500 volume mirroring function synchronization can be understood as a file system to do
RAID 1 to achieve image protection This protection is done in two ways:
One Species is the mirror roll between showrooms, the display level of protection, a display failure, the
business is not affected; the other is the mirror image display within the exhibition.
RAID level protection, a RAID group failure, the business will not be affected.
A. True
B. False
Which of the following are false about OceanStor V3 LUN copy and clone: (multiple choice)
A. LUN copies and clones have the data of the original volume at the moment when the original data is initiated (or started) for the backup of the original data
B. LUN copies and clones need to stop the host business during execution
C. LUN copies and clones can both be executed in the same display
D. Both LUN copies and clones can be incrementally synchronized
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