HCIA-Storage V4.5
Last Update Mar 29, 2024
Total Questions : 536
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Create a Thin LUN on HUAWEI OceanStor with a capacity of 100G and an initial allocated capacity of 10G, then
After mapping this LUN to the Windows 2012 host, the corresponding disk scanned on the host, the disk shows
The capacity should be 10G.
The storage system compresses data based on the user-defined compression policy. Which compression policies are supported by Huawei storage systems? (Select All that Apply)
The following are the characteristics of the clustered NAS storage architecture: (multiple choice)
Fibre Channel is a dedicated protocol used in enterprise-level SAN networks for communication between hosts and storage devices or between storage devices. It features high transmission efficiency, long transmission distance, and high security and reliability.
Which of the following statements correctly describe the improvements of SAS technology compared to SCSI? Select All that Apply.
What are the main functions of the business continuity solution? (Select All that Apply)
Which is the correct order for evolution of mid-range storage architectures?
1) Fixed storage system configuration
2) Dual-controller active-active redundancy configuration
3) Flexible hardware component configuration
4) Flexible software function configuration
Suppose, for cost control reasons, a startup company can acquire only one storage device to provide services. However, its services require high hardware reliability, so an engineer recommended a Huawei OceanStor all-flash storage system. Which statements describe the high reliability of the storage system? (Select All that Apply)
Which of the following RAID levels has the lowest hard disk space utilization?
Huawei OceanStor hybrid flash storage is used as an example. Which statements are true about IP address failover? (Select All that Apply)
If a disk domain has multiple disk types, the storage pools in that disk domain MUST have multiple disk types in them.
An enterprise needs to purchase backup media for data backup. To inherit the enterprise’s original tape backup architecture and strategy, it is necessary to mention
High backup speed. What kind of backup media did this enterprise purchase?
Which statements are true about a dual-controller storage system? (Select All that Apply)
The following two descriptions are correct:
Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.
Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.
For the data stored on the medium, there is no need to physically crush or sell it as the data recorded on the paper
Ruined situation.
Which statements are true about distributed storage? (Select All that Apply)
Description 1: FC protocol and FCoE protocol have different operating environments, different operating channels, and the same protocol stack.
Description 2: FCoE can only run on 10GE, which solves the problems of short FC transmission distance and packet loss in IP networks.
When a company's customers need to complete data migration between devices, what features can be used to complete? (Multiple choices)
Xiao Wang, an employee of a company, did the following in the company's storage system: 9:00 Take a snapshot of LUN A and activate it
Alive, all the data of the snapshot LUN and the source LUN were modified at 10:00, and the snapshot was rolled back at 11:00.
The following instructions are correct? (Multiple choice)
In the LAN-Base networking, both the service flow and the data flow take the LAN network, and occupy a large bandwidth.
CKG is composed of multiple CKs on different hard disks of different types in the hard disk domain.
The following are the advantages of SSD hard drives compared with mechanical hard drives. The description is correct: (multiple choices)
According to the changes in the amount of backup data, the types of backup can be divided into:
Regarding the steps of SAN synchronous replication, what is the correct order?
(1) The production storage receives the host write request. HyperReplication logs the request. Only the place is recorded in the log
Address information, without recording data content.
(2) HyperReplication waits for both the primary LUN and secondary LUN write processing results to be returned. If both are written successfully, clear
Log; otherwise keep the log, enter the abnormal disconnection state, and then copy the corresponding number of the log address again when starting synchronization
According to the block.
(3) Write the request to the master LUN and slave LUN. Normally, the LUN is in the write-back state, and the data will be written
Cache.
(4) Return the processing result of the host write request, which is subject to the processing result of the write master LUN.
In a RAID5 composed of three disks, if 10110110 and 11010011 are written simultaneously,
Two data disks with the same stripe, then 01100101 will be written to the verification disk.
Description 1: There is an interconnection line between the controllers of the storage system. If the controller is broken, it belongs to it.
The working controller of the managed LUN will be switched to a working controller.
Description 2: The working controller and home controller of a LUN must be unified into one controller.
FCoE is a transmission protocol standard that encapsulates frames in FC in lossless Ethernet and is used to form storage networks
Network.
Which of the following descriptions of refactoring is incorrect?
A, RAID 0,1,3,5,6 and 10 support reconstruction
B. Reconfiguration does not necessarily require hot spare disks
C, reconstruction has an impact on RAID performance
D. Reconstruction will not interrupt RAID business
In the HUAWEI OceanStor storage system, one LUN can create multiple snapshots, but only one snapshot
Can be activated.
In the HUAWEI OceanStor storage system, which of the following descriptions about mapping snapshot LUNs is correct?
An enterprise adopts cloud-level primary and backup data-level disaster tolerance. During business planning, two types of storage can be divided according to actual needs.
LUN: Protected LUN and unprotected LUN, create VMs that need disaster recovery on the protected LUN, and configure only the protected LUN
Set up array replication to save the storage space requirements of the disaster recovery center.
Description 1: The file system of the SAN storage is deployed on the storage side, and the file system of the NAS storage is on the host side.
Description 2: Dynamic tiered storage can achieve data migration between storage media with different performance
LAN Free and Server Free are backup networking methods that have little impact on host performance.
Which of the following are deployment modes of cloud computing? (Multiple Choice)
The following description about Huawei RAID2.0+ technology is correct: (multiple choices)
Which of the following operations is a daily maintenance item in data center storage?
The failure of an SSD is more predictable than that of other disk technologies.
In which layer in the architecture of a typical Big Data processing system does the data mining and business intelligence process are performed?
Which of the following statements about RAID 10 are correct?
(Multiple Choice)
Which of the following are existing Solid State Disk types?
(Multiple Choice)
What is the main purpose of backup battery units (BBU) in storage controllers?
Statement 1: Multipathing is caused by adding redundant hardware.
Statement 2: Huawei offers a different version of Ultra Path for different operating systems.
Statement 1: Everytime a tape is used to restore data/ some data will be lost.
Statement 2: Backup strategies that use tape as backup media typically have a high RTO.
Statement 1: RAID 2.0+ is NOT based on traditional RAID technologies.
Statement 2: RAID 2.0+ has excellent rebuild characteristics.
Which of the following are attached to the storage system serially? (Multiple Choice)
For random access to mechanical disks, the most significant impact on the time it takes to complete an IO is:
SAN is a storage architecture that connects storage device and application servers through network.
Backup is concerned with data recoverability, and disaster recovery is concerned with business continuity.
What are the challenges facing traditional data centers? (Multiple choice)
Regarding HUAWEI OceanStor storage dynamic tiered storage technology, which of the following descriptions is incorrect?
The steps of asynchronous remote replication multi-point technology, is the following statement correct?
(1) A new time slice (T2, P2) is generated in the cache of the master LUN and the slave LUN at the start of each replication cycle
(2) The newly written data of the host is cached in the time slice T2 of the main LUN Cache, responding to the completion of the host
(3) The master and slave LUNs each release the received data
(4) Copy the data of time slice T1 directly to the slave LUN and write it to the time slice P2 of the slave LUN
Regarding the advantages of DAS, the following description is correct: (multiple choice)
A company is mainly used for file system sharing in Linux, UNIX, Mac OS and VMware operating system environments.
Which of the following file access protocols is suitable for this company?
The difference between DAS and SAN, which of the following descriptions is wrong?
With the advent of the era of big data, the corresponding storage technology is also undergoing changes.
Is the following statement correct? (Multiple choice)
In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
Bank's bill imaging system often stores structured data on a SAN array, and unstructured data
On the NAS array.
The QoS of the file system supports IO priority configuration and policy configuration.
What value does thin provisioning technology bring to customers? (Multiple choice)