The SCSI protocol is the basic protocol for host and disk communication. It is operated by the SCSI controller, the controller is equivalent
For a small CPU, it has its own command set and cache.
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?
What are the three data centers in the disaster recovery plan that 3DC refers to? (Multiple choices)
When the disk is not accessible, what kind of reconstruction method is used when writing to the disk?
In the HUAWEI OceanStor storage system, which of the following descriptions about SmartThin LUN is correct?
Which of the following three disaster recovery technologies are commonly used? (Multiple choice)
The number of erasable times of the storage medium cell of the SSD disk is limited. Multiple erasing causes the wear of the SSD, which also makes the SSD
Has a limited period of use, which is related to the number of specific erasures.
A, yes
B, 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)
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
OceanStor 5300 V3 is a dual-controller converged storage product, which must ensure the working controller and attribution control of the LUN
The controller is consistent.
Remote replication requires master and slave storage from the same manufacturer.
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
Description 1: The file system of the NAS is managed by a storage or server that provides resources.
Description 2: The file system of the SAN is managed by the host itself.
A company has sufficient client server resources, but network resources are tight. Which deduplication strategy is suitable?
A, file-level deduplication
B. Byte-level deduplication
C, source deduplication
D. Deduplication on the target side
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
What is the description of file-level HyperSnap feature data recovery in HUAWEI OceanStor storage system, which
Are these correct? (Multiple choice)
When the disk is read and written, the sector is the minimum addressing unit, and a segment can be written to the first half of a sector
Data, and then write a piece of data to another sector.
The multipath load balancing strategy used by HUAWEI OceanStor storage products is the default?
Regarding the traditional model and cloud computing model, high reliability in the data center and cross-data center disaster recovery methods, the following says
What is wrong?
Description 1: A RAID consisting of several hard disks is called a physical volume.
Description 2: RAID 5 can improve the read and write rate and provide a certain degree of data security, but when there is a single hard disk failure
At this time, read and write performance will be greatly reduced.
The port selected by the IP drift strategy has nothing to do with the port rate, only related to the location of the port, the order of selecting the port
Yes?
1. Port at the same position of the remote controller
2. Ports at other locations of the peer controller
3. The port of the local controller
Among the following options, what is the correct sequence of the basic business configuration process for data center block storage?
1. Create a mapping view. 2. Create a storage pool. 3. Create a hard disk domain. 4. Create a LUN and create a LUN group. 5.
Create a host group. 6. Log in to DeviceManager
A, 6->2->3->4->5->1
B, 6->3->2->4->5->1
C, 3->2->4->5->1->6
D, 4->5->2->3->1->6
The following are the advantages of SSD hard drives compared with mechanical hard drives. The description is correct: (multiple choices)
From the perspective of the cloud computing business model, Huawei network disks belong to PaaS.
What are the following types of disaster recovery at the host layer? (Multiple choice)
What is the correct sequence of the overall reconstruction process?
1. Query all CKGs with CK falling on the faulty disk
2. Assign hot spare CK to all these CKGs
3. Update CKG information and release the reconstructed CK
4. Write the reconstructed data to the hot standby CK
5. Through the RAID algorithm, calculate the data on the failed disk based on the data on the normal disk and the check disk
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)
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)
Which of the following are the data transmission rates that can be configured on the FC ports on the FC switch in FC SAN given that your cable and SFP supports it? (Select All that Apply)
What three stages do storage systems need to go through to realize SmartTier? (Multiple choice)
According to the changes in the amount of backup data, the types of backup can be divided into:
The dual switch network design is widely used in the FC SAN environment. The following description of the dual switch network redundancy design,
Which ones are correct? (Multiple choice)
Database data belongs to structured data, and audio and video data belong to unstructured data.
The growth comes mainly from the rapid growth of unstructured data.
Is the following description about Quota tree correct?
A, Quota tree is a first-level directory under the file system
B. Only administrators can create, delete, rename, etc. through the command line or GUI management interface.
Users can delete the empty Quota tree
C, Quota tree can be renamed and deleted when sharing through agreement
D. Ordinary users can perform quota management on the number or capacity of files under Quota Tree
ICT is a technological field that combines information technology and communication technology.
Statement 1: Virtual Tape libraries allow for a highly scaleable backup strategy as storage can be added later.
Statement 2: Virtual Tape Libraries should be used when remote datacenters are NOT available.
The hard disk domain supports online addition of hard disks, and the storage pool supports online expansion.
Statement 1: Synchronous replication is often possible over distances of more than100k
Statement 2: Asynchronous replication must be used when the host has a file system that is Linux based.
Statement 1: Deduplication reduces the amount of stored data.
Statement 2: Deduplication is performed on file level only.
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.
If no data migration plan is set, with SmartTier enabled, there will be no data movement at al between tiers.
It is an electronic device controlled by a motor that moves the hard drive head arm. Which of the following component fits the above description?
Why storage systems has more than one storage controllers in the Dual Storage Controller Architecture?
Statement 1: RAID 2.0+ offers better protection against data loss than traditional RAID and it performs much better
Statement 2: To rebuild a RAID 2.0+ protected failed drive takes a lot of time as all drives are involved in the rebuild of the spare disk.
Statement 1: NAS solutions are always file based.
Statement 2: NAS solutions are mostly limited in distance because Ethernet cables are used.
IP SAN uses underlying optical networks to connect servers and storage systems.
Big Data refers to the process of collecting/ processing and analyzing vast amount of data and information to gain valuable insights.
HUAWEI OceanStor SmartTier can be used to position files to be on specific disk drive types.
In Huawei storage systems, which feature can be used to periodically detect and migrate hot data from the capacity tier to the high-performance tier?
A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts.
If a disk domain has multiple disk types, the storage pools in that disk domain MUST have multiple disk types in them.
A company purchases storage devices for new services. The new services do not require high access speed of storage devices. In this scenario, the IP SAN can be used for networking deployment.
When the RTO requirement is within 10 minutes, the traditional tape backup method is not recommended.
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TESTED 05 May 2024
