H13-629 HCIE-Storage (Written) Questions and Answers

Connect Huawei storage to the original vio server and perform data migration on the vio server system layer.

Connect Huawei storage to the original vio server and migrate data in the virtual partition systemlayer.

Create a new vio server for Huawei storage and migrate data in the virtual partition system layer.

Create a new vio server for Huawei storage and migrate data on the vio server system layer.

Single VIS device failure

Single oracle failure

A single data center full failure

Third-party arbitration array failure

fs create striped fs01 10g 3 RG1-LUN1, RG2-LUN1, RG3-LUN1 stripeunit = 2048 blksize = 8192

fs create mirrored fs02 10g 2 RG1-LUN2, RG2-LUN2 stripeunit =2048 blksize = 8192

fs create mirrored-stripe fs03 10g 2 2 RG1-LUn1, RG2-LUN1 protection = disk stripeunit = 2048 blksize = 8192

fs create striped-miiro fs04 20g 2 3 RG1-LUn1, RG1-LUN2, RG2-LUN1, RG2-LUN2, RG3-LUN1, RG3-LUN2 protection = diskstripeunit = 512 blksize = 1024

True

False

In the same city set up two data centers to do synchronous replication, located in another remote data center to do asynchronous remote replication

Set up two data centers in the same city to form a dual disaster recovery network

Set up a data center in the local and remote sites to form a dual-active disaster recovery network

In thesame city set up two data centers to do double live in another remote data center to do asynchronous remote replication

4940G

4280G

5940G

5280G

Support for SMB3 multichannel features that take full advantage of client-side multi-core CPUs and bandwidth resources to dramatically improve performance.

When a hard drive has multiple objects at the same time to write requests, support merged into a large continuous IO, significantly improve system performance.

Internal file system replication, without having to go through the client directly in the system to complete high-speed

Supports 10GE and PCIE networking, providing high performance through high-speed inter-node interconnection and reducing system internal delay.

True

False

Agent-Agent monitors the resources of each system and provides the status to each machine's HAD

HAD Cluster service that monitors and manages the cluster's NAS

Under the management of the master node of the cluster, Gab sends the communication information between the cluster members to the point communication

LLT (Low-Latency Transport) sends information to all nodes in the cluster through a low-latency delivery protocol

The client JobResults directory is full

The media server IndexCache directory is full

The media server can not resolve theclient host name

The client can not resolve the media server host name

Logical reasoning

Phenomenon analysis method

Replacement method

Alarm Information Analysis

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 dueto 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

Recovery of the RAID group can be done by recovering the first failed hard disk

Recovery of the RAID group can not be done by recovering the first failed hard disk

Recovery of the Raid group by recovering the first failed hard disk, the recovered data will be lost for a period of time

Recovering the Raid Group by Recovering the First Erased Hard Disk, the recovered data is not available

1,7,8,9

1,7,15,24

1,4,8,9

1,5,7,9

store the log in memory

Store the log in any one of the two PVs

Store the log in the third PV of the current VG

Save the log in another VG pv

CommServe

MediaAgent

Library

iDataAgent

206 Mbit/s

23 MB/s

16 MB/s

800 KB/s

Configure LUN A and LUN B on Huawei OceanStor V3, create a snapshot for LUN A, and then use LUN A as the source LUN and LUN B as the Target LUN

Configure the controllers that belong to LUN Aand LUN B to be different on OceanStor V3, with LUN A as the source LUN and LUN B as the target LUN

Huawei OceanStor V3 configures LUN A and LUN B, maps LUN B to a host, and then uses LUN A as the source LUN and LUN B as the target LUN

On Huawei OceanStor V3, configure that thick LUN A and thin LUN B belong to the same controller, and LUN A is the source LUN LUN B is the target LUN

Modify the value of DB-WRITER-PROCESSES.

Redhat system default CFQ algorithm on the database business efficiency is not high, should be adjusted to noop algorithm.

Oracle database FILESYSTEMIO-OPTIONS parameter can be set to Asynch, and the file system log off.

Modify Oracle's DB-BLOCK-SIZE parameters.

According to the different retention time to divide the media pool

As many media pools as possible to improve performance and utilization

According to the purpose of the disk to partition the media pool

According to the number of storage strategies or use to divide

True

False

In File System Snapshot when you create a snapshot, you simply copy the root of the file system and save it to form a snapshot of the file system.

Deletion Snapshots use a mechanism for reclaiming space, so snapshot data space is immediately freed aftersnapshots have been deleted.

After creating a snapshot in the File System, as the main file system is continuously updated, the original data block will gradually become the space occupied by this quick debt. However, a newly written data will not be included in the snapshot space.

File system snapshot data can not be deleted directly, and only after the snapshot has been deleted, this part of the space can be released.

3,5,2,1,4

3,1,5,4,2

3,5,2,4,1

3,5,1,2,4

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 ofSSD data, use a tiered storage disk for more utilization

Linked Clone

VSA

SE Sparse

User Data Management

Log in to the management software or the CLI to check whether the controller is online. If it is not online, restart the controller B on the CLI, and observe the startup status and recordStart the abnormal interface and crude without

landing management If you press or CLI to check whether the controller is online, if not online, unplug the controller, through the CLI to observe the start-up status, record KaiAbnormal interface and error

Serial connection to the controller, COM1 port without printing, can be judged as controller failure, need to be replaced

Log in to the management software or CLI to check whether the controller is online, if it is not online, execute restsys, restart the current controller, and observe through the CLIDynamic state, recording abnormal interface and error

ASM directly manages the hard disk, not the files, the files are evenly distributed across all the disks.

ASM instance SGA includes buffer pool share pool larger pool and so on.

ASM instances can be synchronized and data instances started and synchronized, and must be closed later than the database instance.

ASM is an oracle-based storage solution similar to RDMS, consisting of instances andfiles, maintained by the sql plus tool.

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)

A bank has more than XX customers and XX corporate customers.

Loss of data will result in substantial loss of business interruption and may also result in significant financial loss.

Business interruption has a huge impact, and the interruption time of business deployment <2h.

Customers want to build two live-action data centers in the same city and realize double-live of the key business systems. The disaster recovery plan RPO = 0, RTO = 0

NFS design ideas include stability, security, support for large-capacity storage devices

NTFS will all the data is a file, thefile system metadata is also stored as ordinary files

Each directory and file attribute information is included in the MFT, MFT records the name of the file and directory, size, data storage location information

NTFS file space allocation unit is the sector, the default is 512 bytes

EXP

RMAN

EXPdp

imp

True

False

The SIR cluster of the VTL6900 supports global deduplication

The deduplication start time of the VTL6900 can be controlled automatically according to the policy

VTL6900 on the specified tapededuplication and remote replication is recommended at the same time

VTL6900 deduplicated tape to do data archiving, the physical tape library in the NC is still non-deduplicated data

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

The backup piece is abinary 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

Fabric Server

Fabric Controller server

Name Server

Management Server

Rewrite the protection

Resource Management

Document Properties

document encryption

When the used space of the node pool reaches a high water level, the system reports an insufficient capacity alarm. By default, the alarm recovery threshold is 5% lower than the water level. That is, when the used space recovers below 80%, the alarm of insufficient capacity alarm recovery, the alarm threshold and the alarm recovery threshold can be manually modified

When the node pool's used space reaches high water level and spill over is selected, the pool of nodes forbids writing data to any other node pool or specified node pool to write data

When the node pool's used space reaches high water level and no spill over is selected, the pool of nodes forbids writing data, and does not write data like other node pools

When the used space of the node pool reaches the read-only watermark, the system reports an alarm. The alarm recoverythreshold defaults to 0% lower than the low watermark, read-only reportPolice recovery.

Customer needs collection and refining

Backup capacity calculation

Project background research

Network environment is collected

The data that has changed since the last backup is backed up.

Changed data backup since last full backup.

Full backup of all data.

After the initial backup data backup of all data.

can not sit down

vgchange

vgexport mkdir mknod vgimport

vgremove mkdir mknod vgcreate

P25 Node SSD Hard Drive> P25 Node SAS Hard Drive> P36 Node SATA Hard Drive> P12 SATA Hard Drive> C36 SATA Hard Drive

P25 Node SAS Hard Drive> P25 Node SSD Hard Drive> P36 Node SATA Hard Drive> P12 SATA Hard Drive> C36 SATA Hard Drive

P25 Node SSD Hard Drive> P25 Node SAS Hard Drive> P36 Node> C36 SATA Hard Drive> P12 SATA Hard Drive

P25 Node SSD Hard Drive> P25 NodeSAS Hard Drive> C36 SATA Hard Drive> P36 Node SATA Hard Drive> P12 SATA Hard Drive

The data that has changed since the last backup.

The data that has been changed since the last full backup.

The completion of all data backup.

After the initial backup, all data has back up.

VxFS is a non-log file system that can support morethan 2T files.

File system snapshot using copy-on-write (copy-on-write technology) and other files together, share partition or volume storage space.

Provide file system-level snapshots, copy.

File System Snapshots, Scenarios, Replication, etc. Features are based on Storage Checkpoint.

Parameter file

Control Documents

Archive log file

Data files

RPO does not require 0 for the scenario, it is recommended to use asynchronous remote replication.

The main storage using smart cache acceleration, speed up the main storage IO processing speed.

According to the service pressure of the LUNs stored on the primary side, assign the home controllers of each LUN to the A and B controllers.

If you are using an asynchronous remote replication scheme, you need to design a startup synchronization time based on the RPO metrics and consider the setting possible startup synchronization time during the business.

vg01

vg02

vg01 vg02

empty

The backup server and the media server can not communicate properly.

The link between the backup media and themedia server is down.

Backup server SQL database failure.

DDB is abnormal.

Turn off the power of all running virtual machines or migrate these virtual machines to another data store

Use the esxcli storage vmfs extent list command to obtain the name and partition of the vmfs data store tobe backed up after the provision of number of the supported devices.

voma -m vmfs -f check -d /vmfs/devices/disks/naa.60022a110009a8a800042e1800000000:1

voma -m vmfs -f check -d naa.60022a110009a8a800042e1800000000: 1

True

False

TCP Header

IP Header

ISCSI Header

ISCSI data

OLAP business query output is usually a statistical value (using group by with order by), soyou can set a larger SGA-target value (relative to OLTP).

It is recommended to use UDEV UUID and drive letter binding, in Linux environment configuration Oracle database, to avoid subsequent maintenance letter changes caused by the database which can not start.

If the database OLTP business log write is very frequent, it is recommended that the appropriate online log file up, but it is recommended not to exceed 128MB.

In Windows2008 or windows2012 operating system environment, in order to improve I/ O processing efficiency, MBR partition is created, and diskpart command is recommended to set the partition alignment.