Which statements are true about the performance of RAID 10 and that of RAID 5? (Multiple choice.)

RAID 5 outperforms RAID 10 in continuous sequential read and write.

RAID 5 and RAID 10 provide almost the same performance level in continuous random read..

RAID 5 outperforms RAID 10 in continuous random read.

RAID 5 outperforms RAID 10 in continuous sequential read and write.

RAID 10 outperforms RAID 5 in continuous sequential write.

RAID 5 and RAID 10 provide almost the same performance level in continuous random read..

On the command line of the N8500 (V200R001) clustered NAS system, you run the NFS> share add / vx / xs-cmfs 100.43.13.210 command.One system that is used NFS sharing has IP address 100.43.13.11. If the client operating system is Suse Linux, which of the following access to the description of the file system is correct: (multiple choice)

To query the client for all the NFS shares on the service IP, use the command: showmount -e 100.43.13.11

Verify that NFS shared file system has been mounted locally, executable: mount

Not just the host with IP 100.43.13.210 can access this NFS share

To query the client for all the NFS shares on the service IP, use the command: showmount -e 100.43.13.11

Mount the NFS shared file system locally and execute: mount -t nfs 100.43.13.11:xs-cmfs / mnt

Verify that NFS shared file system has been mounted locally, executable: mount

Client server resources are limited but there is sufficient network bandwidth. What kind of deduplication strategy should be used if the client data needs to be backed up to the physical tape?

target-side deduplication (backup media deleted)

source-side deduplication (backup software)

target-side deduplication (backup software deleted)

Target-side de-duplication (backup software global deduction)

target-side deduplication (backup media deleted)

What are the precautions for VTL6900 product division? (Multiple choice)

SIR data The number of LUNs is 2's power of N

SIR index LUN size is at least 4% of SIR data LUN size

It is not recommended to divide RAID across frames

The size of the LUN provided by the VTL back-end storage does not exceed 4TB. The default configuration is write-back, mirroring, and the depth of the slice is 64KB

SIR data The number of LUNs is 2's power of N

SIR index LUN size is at least 4% of SIR data LUN size

It is not recommended to divide RAID across frames

Which of the following is not true about the working principle of CIFS: (multiple choice)

Before establishing a shared connection, establish a session and then negotiate the agreement

in the agreement negotiation stage for safety certification

file operation is completed, does not require client requests, the server will automatically disconnect the shared connection

Before establishing a shared connection, establish a session and then negotiate the agreement

establish a shared connection before the file operation

in the agreement negotiation stage for safety certification

file operation is completed, does not require client requests, the server will automatically disconnect the shared connection

When formatting a newly created LUN on OceanStor V3, LUN formatting fails. Which of the following conditions will cause this problem? (Multiple choice)

The RAID group where the LUN resides is downgraded or invalidated

The connection between the host and the storage is broken

Formatting process made a master-slave switching operation

Production time is Monday to Friday 8:00 to 18:00. There are three LUNs, respectively LUN1, LUN2, LUN3, LUN1 with a size of 500G, all IO.The average response time needs to be within 5ms, the size of LUN2 is 4TB, the coexistence of hot and cold data (with 12.5% of the hot data), and the size of LUN3 is 10TB. If performance requirements are not high and the engineer plans to use SmartTier, which of the following description is correct? (Multiple choice)

Use 3-tier Tier, 1TB high performance layer, 4TB performance layer, 10TB capacity layer, and configure LUN1 to allocate high-performance layer capacity first, LUN2 preferentially allocates performance layer capacity and LUN3preferentially allocates capacity layer capacity

Set the monitoring period of the Smart tier to 8:00 to 18:00 every day from Monday to Friday. The migration period is not overlapped with the monitoring period

Use 3-tier Tier, 1TB high performance layer, 4TB performance layer, 10TB capacity layer, and configure LUN1 to allocate high-performance layer capacity first, LUN2 preferentially allocates performance layer capacity and LUN3preferentially allocates capacity layer capacity

Use 3-tier Tier, 1TB high-performance layer, 4TB performance layer, 10TB capacity layer, configure LUN1 and LUN2 to migrate automatically, and LUN3 priority allocation of low-performance layer capacity

The use of 3-tier Tier, high-performance layer 1TB, performance layer is 4TB, capacity layer is 10TB, while configuring LUN1, LUN2, LUN automatic relocation. The LUN3 is migrated preferentially to the low-performance layer

Set the monitoring period of the Smart tier to 8:00 to 18:00 every day from Monday to Friday. The migration period is not overlapped with the monitoring period

True or False, the deployment process in a Huawei Active / Standby Disaster Recovery System is as follows:

Synchronizing data to disaster recovery end

Disaster recovery deployment at disaster recovery end

Configuration of the protection group

The OceanStor VIS6600T includes the following devices:

Fiber switchSince there is a certain dependency between the above devices, the power-down needs to be performed according to a certain sequence. Which of the following power-off sequences is correct:

Which of the following is true about the principle of Huawei Oceanstor V3 smart cache: (multiple choice)

When reading the data in the missing smart cache, the smart cache pool directly forwards the read IO request to the HDD

If OceanStor V3 is shared between services A and B, the same custom smart cache partition can be used

The system generates a default smart cache partition for each controller by default

When an IO arrives at the storage system, in order to avoid affecting the write performance, the data in the smart cache will not be any changes due to the IO

When reading the data in the missing smart cache, the smart cache pool directly forwards the read IO request to the HDD

If OceanStor V3 is shared between services A and B, the same custom smart cache partition can be used

The system generates a default smart cache partition for each controller by default

Which of the following is correct about the InfoStamper feature of an OceanStor 9000 storage system: (multiple choice)

Hard links are protected by snapshots, soft links are not protected by snapshots

For a snapshot with an expiration time set, the system automatically deletes the snapshot but does not back up the storage space occupied by the snapshot data after the snapshot expires

Snapshot does not support nested, that is, the snapshot has been created directory, the parent directory and subdirectories can no longer create a snapshot

The root directory of the snapshot (that is, the directory used to create the snapshot) does not support deletion

Hard links are protected by snapshots, soft links are not protected by snapshots

For a snapshot with an expiration time set, the system automatically deletes the snapshot but does not back up the storage space occupied by the snapshot data after the snapshot expires

On the command line of the N8500 (V200R001) clustered NAS system, you run the NFS> share add rw, no_root_squas / vx / xscmfs command. Which of the following is correct regarding this?

The client can modify the file system when it accesses it

NFS shares created can be accessed by all clients

The client can modify the file system when it accesses it

It allows asynchronous writes to the file system and writes to the disk of the file system when the operation request is not responding

It sets the client's root user does not have root privileges to access the NFS shared file system

NFS shares created can be accessed by all clients

Which of the following is a description of the WORM feature of OceanStor V3: (Multiple choice)

Locked file system WORM clock is greater than the file atime value, the file will be in an expired state

When the file is in an append state, after the legal clock of the WORM file system exceeds the file expiration time, the file is movedMoved to expired status

When the size of the file is 0 bytes, the lock state can be migrated to the additional state

When the file is locked, the file protection time can be extended or shortened by manual operation

Locked file system WORM clock is greater than the file atime value, the file will be in an expired state

When the file is in an append state, after the legal clock of the WORM file system exceeds the file expiration time, the file is movedMoved to expired status

When the size of the file is 0 bytes, the lock state can be migrated to the additional state

A computer center plans to purchase a set of Huawei Oceanstor 9000 products as a follow-up storage system. The requirements are as follows:(1) The minimum storage system needs to provide a total bandwidth of 3-4GB / s(2) storage space can reach 1PB, to meet a single file GB storage(3) computer center room requires control deployed in a cabinet use(4) Internal computer cluster nodes are now all InfiniBand networkBased on the above information, which of the following configuration suggestions do you think is more suitable for this project?

OceanStor 9000 supports front-end 10GE TOE + back-end IB networking, the front-end is easy to log in and manage with the management PC interworking, considering this networking solution can reduce the cost of front-end IBswitches.

Because computing tasks are designed for large file services, it is more appropriate to deploy with an 8-node OceanStor 9000 C node. The capacity on the use of 4TB SATA, to meet customer needs

Using Oceanstor 9000 C Node combined with the total bandwidth and total capacity requirements, consider the 8-node configuration 4TB SATA full disk, backend 10GETOE + front-end IB networking

From the reliability point of view, it is recommended to use the InfoEqualizer function to access the OceanStor 9000 storage through a domain name. The InfoEqualizer DNS segment needs to be considered and OceanStor 9000 back-end to interoperability

OceanStor 9000 supports front-end 10GE TOE + back-end IB networking, the front-end is easy to log in and manage with the management PC interworking, considering this networking solution can reduce the cost of front-end IBswitches.

In the scenario of database protection, when the slave uses the virtual snapshot to verify LUN data consistency on the production end and the DR end and the disaster recovery end LUN database can not be started normally. Which of the following are the possible reasons for this? (multiple choice)

After a snapshot of the LUN of the redundancy site is created, the snapshot is not activated at the same time

When creating a snapshot on the disaster recovery end LUN The production end is copying data to the disaster recovery end

The production end and disaster recovery end adopt the disaster recovery solution of incremental LUN copy. The incremental data is abnormally interrupted during the synchronization process and has not been recovered

After a snapshot of the LUN of the redundancy site is created, the snapshot is not activated at the same time

Disaster recovery data stored in the Cache, not yet written to the hard disk

When creating a snapshot on the disaster recovery end LUN The production end is copying data to the disaster recovery end

The production end and disaster recovery end adopt the disaster recovery solution of incremental LUN copy. The incremental data is abnormally interrupted during the synchronization process and has not been recovered

Which if the following is correct regarding the Huawei Oceanstor unified storage system multi-planar system design?

When the GE switching channel is faulty, the PCIe switching channel can be used as the backup data transmission channel

The service plane uses GE channels for data transmission

The service plane connects the host IO channel, disk IO channel and GE switch

Plane redundancy between each other, when the business plane fails, allowing the use of control plane transmission of business data

When the GE switching channel is faulty, the PCIe switching channel can be used as the backup data transmission channel

Which of the following are correct regarding the Simpana backup software? (multiple choice)

data Reader: The flow of raw data read from the client, set in each client

Data streams: client to MediaAgent data transfer stream, set in the storage strategy

Device Streams: MediaAgent to storage Media data transfer stream, set in each sub-client

data Reader: The flow of raw data read from the client, set in each client

Data streams: client to MediaAgent data transfer stream, set in the storage strategy

Device Streams: MediaAgent to storage Media data transfer stream, set in each sub-client

The value of Data Reader must be less than the value of Device Streams

Which of the following is correct about the Huawei storage Oceanstor V3 storage system?

If binding port A and physical port B are added to the same VLAN, as long as one physical port in bonded port A fails, the service switches to Physical Port B

One Ethernet port can be used to create multiple logical ports

If you type Ethernet ports A and B into VLAN 2, by default the port A and B data are in the same drift group

If binding port A and physical port B are added to the same VLAN, as long as one physical port in bonded port A fails, the service switches to Physical Port B

When IP Fallback mode is set to Manual, when the port fails to recover, the active port link is in normal status and lasts longer than 1 minute, the system can switch the service to the primary port

Which of the following scenarios will cause the OceanStor 18000 to start local reconfiguration? (multiple selection)

The system detected that CK could not be repaired

Insert the drive within two minutes after being unplugged

The system detected that CK could not be repaired

Insert the drive within two minutes after being unplugged

IO access returns SECTOR FAULT error

Windows supports both MBR and GPT disk partitioning modes. For MBR disks, the following options are correct:

The total number of primary partitions and main expansion partitions does not exceed 4 and the maximum number of primary partitions 4

windows operating system can create up to 4 partitions

Single partition capacity size limit of 1TB

The total number of primary partitions and main expansion partitions does not exceed 4 and the maximum number of primary partitions 4

The maximum number of logical partitions on the main extended partition does not exceed 4

Which of the following descriptions of the import parameters for the physical tape of the VTL6900 is correct?

Recycle Mode: This mode will automatically recycle the tapes that have passed the data retention period

copy Mode: This mode to develop physical tape data copy to the corresponding virtual tape, at the same time the development of the physical tape recycling

Direct AccessMode: This mode only copies the beginning of the physical tape 10MB data, contains the data stored on the tape backup software, without having to copy the backup data

Recycle Mode: This mode is to block copy mode, the entire tape is copied to the virtual tape

Recycle Mode: This mode will automatically recycle the tapes that have passed the data retention period

Which of the following statements replacing the storage array controller is wrong?

Before switching services to the peer controller, check that the multipathing software in the system is installed and effective on the host.

Before plugging and unplugging the controller, make sure that the service is stopped or has switched to the peer controller

Before switching services to the peer controller, check that the multipathing software in the system is installed and effective on the host.

Confirm Cache dirty data has been saved

Master-slave controller must be switched to be replaced controller for backup

Which of the following statements regarding the Huawei Oceanstor V3 hierarchical storage and Smart Cache is correct?

A client business IO load random read that accounts for more than 60% using SATA, SAS for staging storage, use SSD to do cache, so it will effectively reduce costs and improve random performance indicators

If hot spot data is scattered and changing rapidly, it is recommended to use tiered storage

If there are many SSDs and hotspots, Smart Cache is the best choice

If you have a small amount of SSD data, use a tiered storage disk for more utilization

A customer purchases two OceanStor 9000 storage systems and deploys them in city A and cityB. InfoReplicator is configured to ensure data reliability of production siteA. Which statement is false?

If the replication link is disconnected, pair properties can be modified only in the cluster where the primary directory resides at production siteA. After the replication link is recovered, the modified pair properties are automatically updatedto the secondary directory at the disaster recovery site.

Due to system upgrade, primary/secondary switchover must be implemented for existing remote replication pairs. The prerequisites of primary/secondary switchover are as follows:

The health status of a remote replication pair is normal, and the replication link functions properly.

Write protection of the secondary directory has been canceled.

If the replication link is disconnected, pair properties can be modified only in the cluster where the primary directory resides at production siteA. After the replication link is recovered, the modified pair properties are automatically updatedto the secondary directory at the disaster recovery site.

A channel authentication IP address must be assigned. This IP address is a static service IP address of any node in the remote cluster. The IP address is used to create a channel between the replication zones. The node must reside inthe remote replication zone.

The channel authentication password can be changed. If a replication link is disconnected after the channel authentication password is changed, the user must enter the new password again and keep the same password for the initiatorand recipient of the replication zone channel so that the replication link can be recovered.

With Simpana in a multi-card, multi-network environment, you can use the data interface data interface pairs (DIP) to set the data from the source end-to-end network transmission path. Source and destination can use the host name and IP address to describe the network interface.There are multiple network connections that can be configured to send multiple concurrent data streams. Based on this, which of the following configuration methods should be used? (multiple choice)

By configuring the ValutTracker strategy

In the control panel data Interface pair configuration

Use data IFPaires.exe to configure multi-stream concurrent DIP

Use the Client properties in the job configuration

By configuring the ValutTracker strategy

In the control panel data Interface pair configuration

Use data IFPaires.exe to configure multi-stream concurrent DIP

With Redhat linux enterprise 6 system the df and du commands allow you to see the mnt capacity, as shown below. What causes the capacity shown to not be the same?redhat: ~ # df -h / mntFilesystem Size Used Avail Use% Mounted on / dev / sdb 1008M 514M 443M 54% / mnt redhat: ~ # du -hs / mnt 40k / mnt

The mnt directory have been deleted

The mnt directory mounted block device is abnormal

The mnt directory is also mounted another block device and some files that are currently open.

The mnt directory have been deleted

This is a bug of the known du and df commands that need to be upgraded to the latest version

When one of the nodes in the Huawei N8000 cluster fails, the service IP address of the node cannot be accessed. Which of the following methods can recover the affected services?

Use the other node's business IP access

Only manually switch the node's service IP to the remaining nodes

Use the other node's business IP access

Only manually switch the node's service IP to the remaining nodes

Which of the following statements regarding the Quota Tree file system quota feature of OceanStor V3 is NOT correct? (Multiple Choice)

Can operate across Quota Tree's move files (NFS protocol) or cut files (CIFS protocol).

No hard link between two different Quota Trees is allowed.

Quota Tree can share through the agreement, and when it is being shared, it is not allowed to rename and delete.

Can operate across Quota Tree's move files (NFS protocol) or cut files (CIFS protocol).

A hard link between two different Quota Trees is allowed.

No hard link between two different Quota Trees is allowed.

Two Standard Edition N8500 nodes created two file systems, namely fs01 and fs02 and the file systems are online. If the two file systems are set, then which of the following will appear?

The file system is automatically offline, but it is also manually pulled

The file system is automatically offline and can not be pulled manually

The file system is automatically offline, but it is also manually pulled

file system will not automatically offline, but if you manually offline it and then try it offline

The file system does not automatically offline, but it will succeed if you manually try to bring it offline again

Which of the following is NOT correct regarding the backup RMAN?

Backup slice size is unlimited, but its size can be set by maxpiecesize

The backup piece is a binary file used to store the backup set information

One or more backup pieces form a backup set

A backup piece corresponds to a separate input output file

Huawei H13-629 Practice Test 8 - Free Online Exam Prep & Questions

Which of the following statements about Huawei OceanStor V3 series storage array synchronous remote replication and asynchronous remote replication is incorrect? (Multiple choice)

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Huawei H13-629 Practice Test 8

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Huawei H13-629 Practice Tests

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