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The QoS of the file system supports IO priority configuration and policy configuration.
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
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
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.
All components of storage devices use the redundancy design to ensure system reliability. Redundant modules include controller modules, management modules, BBU modules, interface modules, power modules, and fan modules
Which of the following statements correctly describe the improvements of SAS technology compared to SCSI? Select All that Apply.
Which statements are true about a dual-controller storage system? (Select All that Apply)
Which device allows segregation of collision domains but not broadcasting domains?
The SCSI protocol can be used not only for communication between the host and the disk, but also for communication between the host and the physical tape library, optical disc, and so on.
In a SCSI connection, it is responsible to send SCSI commands to the target. Which of the following fits the above description.
HA (High Availability) refers to the ability to continue to access applications in the event of a single component failure in the local system. In a data center, the downtime is one hour a year, so what is the HA of the data center?
A, 0.99999
B. 0.9998858
C. 0.999999
D. 0.998934
Which of the following technologies are able to quickly obtain valuable information from a variety of data types in a short period of time from a collection of vast amounts of data?
What are the three data centers in the disaster recovery plan that 3DC refers to? (Multiple choices)
Distributed object storage has a unified namespace, and supports online expansion.
Bank's bill imaging system often stores structured data on a SAN array, and unstructured data
On the NAS array.
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.
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.
All users access the folder and write space.
What are the maintenance items of the data center storage administrator? (Multiple choices)
Which of the following descriptions of RAID technology are correct? (Multiple choice)
SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device
The side assumes the role of initiator.
A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts.
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 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
When configuring Thin LUN, not all configured storage space is allocated upon creation. The storage space for Thin LUN will only be allocated when it is used.
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?
If a disk is faulty, what is the process of recovering data on the faulty disk?
When the RPO time requirement is at the minute level, the traditional tape backup method can be used.
SmartKit is an O&M tool that integrates cloud computing, server, and storage. It cannot be used to monitor third-party devices.
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.
Which of the following statements about Huawei RAID 2.0+ are correct? (Multiple choice)
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.
According to the changes in the amount of backup data, the types of backup can be divided into:
The following description about the characteristics of the LAN-BASED backup method is incorrect:
If the disaster recovery center in the same city fails, the production center in cascading networking mode will lose all its backup sites.
The following description of the characteristics of the LAN-FREE backup method is incorrect:
The server with Linux operating system installed accesses the disk array based on the RAID 5 strategy.
The order is:
In the HUAWEI OceanStor storage system, which protocol is used for the mirror channel between the controllers?
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.
The data center is an infrastructure built for accessing and carrying server services. According to the business, the data center can be
Divided into: (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 HUAWEI OceanStor storage system, which of the following descriptions about mapping snapshot LUNs is correct?
Users of a company can automatically report the alarm of the storage device connected to it to the Huawei Service Support Center through a management software. Excuse me, what software is this user using?
Use the CIFS protocol to access the share. When the share name and the user name are the same, the shared order of access is:
FCoE is a transmission protocol standard that encapsulates frames in FC in lossless Ethernet and is used to form storage networks
Network.
Situation: Disk Domain A has 40 disks, Disk Domain B has 20 disks. True or False: the rebuild time for a failed disk in Disk Domain B is longer than for a failed disk in Disk Domain A.
Statement 1: Disaster Recovery plans eliminate the need for backups on tape or disk.
Statement 2: With the design of the DR plan one should always assume the worst possible scenario.
Statement 1: RAID 2.0+ is NOT based on traditional RAID technologies.
Statement 2: RAID 2.0+ has excellent rebuild characteristics.
Match the operating system with the protocol. The operating systems include:1.Windows 2.Linux 3.Apple OSX; The protocols incude: A-NFS B - CIFS C - SMB
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.
Grid storage employs the combination of large scale serial distributed storage to provide even distribution of storage across all nodes.
In a clustered NAS architecture, which of the following allows multiple file system to be consolidated and does not need to be managed separately?
TESTED 21 Nov 2024
