In order to verify the consistency of the slave LUN data with the source data and to protect slave LUN data, which of the following descriptions is incorrect:
A. Create a virtual snapshot of the slave LUN and activate it, then map the snapshot LUN to the host for authentication.
B. After the snapshot LUN is mapped to the host, the host can read and write the snapshot LUN.
C. After the verification is completed, stop the upper-layer service application, release the LUN mapping, and finally delete the snapshot.
D. Stop the snapshot before the host can write snapshot LUN.
True or False, the Huawei Oceanstor backup solution integration program is one machine.
A. True
B. False
In a Huawei OceanStor 18000 the engine, SVP, disk enclosure, and PCIe switch interconnections must be in accordance with certain rules and order. Which of the following statement is incorrect?
A. The SVP needs to connect multiple engines through two PCI-e switches, and each engine's controller needs to be connected to a PCIe switch to ensure that the link redundancy provides reliability.
B. When the control plane is connected to the network, when the engine and the PCIe switch are interconnected, the port P0 of the A3 slot and the PCI switch PCI port can be used pick up.
C. Huawei OceanStor 18000 can be used to install SAS interface modules and interconnect disk enclosures in slot 0 and slot 5 of the Huawei OceanStor 18000.
Assuming a site data volume of 600GB, A, B site replication bandwidth between 40% of GE network resources, and asynchronous remote replication synchronization. If the synchronization time is 180 minutes and begins at 9:00 AM, when will the next synchronization start?
A. 10:25
B. 12:00
C. 15:00
D. 15:20
Which of the following statements about multi-plane system design of the Huawei Oceanstor unified storage system is correct?
A. The service plane uses GE channels for data transmission.
B. The service plane connects the host IO channel, disk IO channel and GE switching channel.
C. Plane redundancy between each other, when the business plane fails, allowing the use of control plane transmission services.
D. When the GE switch channel fails, you can use the PCIe switch channel as a backup data transmission channel.
In the simpana-based backup solution, where can you the normal service log?
A. CVMA. log
B. CVNetcheck. log
C. CVService. log
D. CVD. Log
Which of the following statement about RAID 2.0 is correct? (Multiple choice.)
A. The hard disk is divided into chunks.
B. Lun consists of extend or grain
C. A CKG chunk may come from the same hard disk.
D. Chunk in a CKG may come from a different storage pool.
Using non-deduplication storage based on the disk library strategy, data recovery fails after the data life of the backup has expired. What is a reason for this?
A. Client corresponding partition insufficient space
B. Client One or more simpana services are not started
C. The storage policy checked enable managed disk space for disk library option, leading to the disk's thresholds from the effectively managed disk space.
D. The client is abnormal with cs or MA communication.
What are the design information research activities in a backup solution? (Multiple choice.)
A. Customer needs collection and refining
B. Backup capacity calculation
C. Project background research
D. Network environment is collected
What are the ways of load balancing cluster softwar on Oracle rac? (Multiple choice.)
A. Client Balance
B. Cluster nodes balanced
C. Service layer balance
D. Instance load
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