H13-629_V2.5 HCIE-Storage (Written) v2.5 Questions and Answers

True

False

Zhang received maintenance tasks, immediately use the inspection tools configured for real-time inspection tasks, using the default business package, select the device to be checked, and check the project, immediately start the task of system-wide inspection, inspection results are normal

Xiao Zhang plans to inspect the tournament site every Monday morning at 6:00 am, set up a time patrol strategy, patrol with the start, end time and patrolCheck frequency, the configuration is complete and exit the inspection tool off, follow-up every Monday to see if there is any abnormal inspection report results

Xiao Zhang When adding devices in the inspection tool, the configured device IP is the front-end IP address of one of the devices and the device is entered as requiredSSH login management user name and password

Xiao Zhang revised the management user login password for all devices, so you need to modify the password in the device information registered by the inspection tool, Zhang firstRemove the scheduled inspection task on the inspection tool interface, and then modify the device information

The hard disk is divided into chunks.

Lun consists of extend or grain

A CKG chunk may come from the same hard disk.

Chunk in a CKG may come from a different storage pool.

This device can not / should not be connected to an existing SAN.

AIX system how to connect to the new storage device.

How AIX systems and data can be migrated from the old disk to the new disk.

The format of the file system, whether the file group is compatible with the new device volume.

10:25

12:00

15:00

15:20

The storage is connected directly to the virtual machine, including RDMs, directly to iSCSI or NFS.

Virtual machines contain large databases.

The virtual machine is deployed in the AIX operating system.

Virtual machines contain non-Microsoft family applications.

lspci | grep SCSI

cat / proc / scsi / scsi

cat / proc / scsi / qla2300 / 1 | grep port

lspci | grep Ethernet

True

False

Sys status view system status

Through the dev status view system status

Through the dev status view device management started

Through dev status view device management started

Read operation for sequential read

A single IO is large, the typical value of 64KB ~ 1MB

No IO write operation

Usually data is not overwritten by the cycle or days to measure

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

MSCS

oracle RAC

HACMP

SQL server

True

False

Based on lvcb offset reconstruction nude equipment, and the database level 0 backup import

Use the dd command for data migration

Use the cplv command for data migration

Use migratepv for data migration

EXP

RMAN

EXPdp

imp

True

False

True

False

The engineer thinks the installation PC is connected to NIC1 to complete the software deployment, so connect the installation PC to NIC1

Direct Deployment of Software Without Disconnecting Front End Network and All Network Nodes

Software Deployment Before starting, the engineer configures a temporary back-end IP address on the back end network port B3-0 of the 9000 node (connected to the installation PC)Department DHCP server

The installation of PC directly through the network cable connected to the OM management network switch to complete the software deployment

oplock

noguest

fs-mode

hide-unreadable

Direct use of the root user, in the case of the file system is mounted fsck repair

Using the owner of the user data file, perform an fsck fix if the file system is mounted

Use the owner of the user data file to perform a fsck fix on the device if the file system is unmounted

Using the root user, perform a fsck fix on the device while the file system is unmounted

LUN copies and clones have the data of the original volume at the moment when the original data is initiated (or started) for the backup of the original data

LUN copies and clones need to stop the host business during execution

LUN copies and clones can both be executed in the same display

Both LUN copies and clones can be incrementally synchronized

True

False

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 tape deduplication 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

1KM

10KM

25KM

50KM

LDAP authentication

WSSE certification

NIS certification

AD domain certification

According to the importance of data measurement data backup frequency

Measure the backup window based on changes

According to the size of the data to measure the data retention period

According to measure the backup bandwidth

Correct

mistakes

True

False

Client corresponding partition insufficient space

Client One or more simpana services are not started

The storage policy checked enable managed disk space for disk library option, leading to the disk ' s thresholds from the effectively managed disk space.

The client is abnormal with cs or MA communication.

One Ethernet port can create multiple logical ports

If Ethernet ports A and B are added to VLAN 2, by default the ports A and B data are in the same drift group

If binding port A and physical port B join a unified VLAN, as long as there is a physical port in bonded port A, the service will switch to Physical Port B

When the IP drift mode is set to " Manual " , when the port is restored, and the active port link is in a normal state for more than one minute, the system can cut back the service to the main port.

True

False

Correct

mistakes

Host - " Linking Primary Array Controller - " Linking From Array Controller - > (Forwarding) Controller operating from a LUN

Host - " Primary LUN Controller - " (Forwarding) Primary Device Controller for Linking - " Link from the array controller

Host - Primary LUN Controller - > (Forwarding) Link Primary Fabric Controller - " Linking From Array Controller - " Hair) from LUn work controller

Host - " Link-connected Primary Array Controller - " Link-connected slave array

4 + 3: 1

6 + 3

4 + 2

12 + 3: 1

Use the same type of disk as the master

Raid should be set the same as the master

The capacity of Lun and primary LUN is the same

Use the same number of disks as the master

NIC

HASHAdow

disk

IP

On the slots of the same position on both nodes, such as A3 and B3, you must insert the same type of interface card.

A5 and B5, A6 and B6 can be chosen to be networked, the key is how to make the network connections.

If the back end of the engine cluster is to be directly connected to four control enclosures, add one FC HBA card in slots A2 and B2 for the controller enclosure of direct connection.

A2, A3, A4 and B2, B3, B4 can be plugged into a 1Gb iSCSI or 8Gb FC interface module to connect with the business network.

GSLB

VIP

SLB

GLB

lan-base

lan-free

server free

server base

True

False

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 system layer.

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.

vip

ocr

dlm

asm

pubs

master

msdb

tempdb

True

False

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

Data loss will be huge and business disruption may result in significant financial loss.

Business interruption has a huge impact, and the interruption time in business deployment is less than 2 hours.

Clients want to build two live-action data centers in the same city to realize the key business activities such as RTO 2.

SVP needs to be connected to multiple engines through two PCIe switches, and each engine controller needs to be connected to a PCIe switch to ensure that link redundancy and to improve reliability.

When the control plane is connected to a network, when the engine and the PCI-e switch are interconnected, the port 0, port A3 and PCIe port can be interconnected.

Huawei slot 0 and slot 5 of the OceanStor 18000 engine enclosure can be used to install SAS interface modules and interconnect disk enclosures.

Program One:1 * OceanStor 9000 C Node36 * 2TB SATA configuration2 * Front-end GE + 2 * Rear-end 10GE

Scenario 2: 3 * Oceanstor 9000 C Node36 * 2TB SATA hard drive;2 * Front-end GE + back-end 2 * 10GE

program three:3 * OceanStor 9000 P Node36 * 2TB SAS configuration2 * Front-end GE + 2 * Rear-end 10GE

Program Four:3 * OceanStor 9000 M Node36 * 2TB SAS configuration2 * Front-end GE + 2 * Rear-end 10GE

Parameter file

Control Documents

Archive log file

Data files

Reduce the number of snapshots.

Reduce the number of virtual machines per LUN.

Increase the number of LUNs and limit the number of hosts accessing the same LUN.

Change the type of virtual disk created.

Standalone SAN engine and stand-alone file engine

Parallel dual-stack by way of parallel support (SAN) and file system (NAS)

Use unified storage pool technology

file system can achieve deduplication data compression function

OLAP business query output is usually a statistical value (using group by with order by), so you 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.

When smart LUNs act as backup media, smart tier ' s performance improvement on this LUN is not obvious.

During the running of the business, the extent size can be adjusted by the size of the hotspot area to obtain better performance.

Literacy ratio in the 1:9 scenario, enabling the smart tier has greatly improved the performance of the business.

Smart tier has no effect on host performance during hot data migration.

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.

When configuring the backup client on the VTL side, you need to know that the WWPN of the FC port that connects the VTL to the VTL is available on the server in the sys /class / fc_host directory and subdirectory to the corresponding WWPN port.

Server-side identification has been detected with the library device command is cat / proc / scsi / scsi.

As shown in the figure, among the devices identified on the server side, the device labeled 1 is the scanned library.

As shown in the figure, of the devices identified on the server side, the device labeled 2 is the information for the scanned tape.

Planned Migration

Failover

Business Recovery

fault recovery

Disaster recovery end must be deployed, oracle rac cluster can not deploy oracle single node.

Oracle RAC grid production side of the file must be copied to the disaster recovery side.

Unable to copy the production side of the FRA file will be able to guarantee the normal provision of services at the northern end.

Production end of the oracle data files and log files can not be placed in the same consistency group.

Customer needs collection and refining

Backup capacity calculation

Project background research

Network environment is collected

True

False

Create a site discovery store, find the host registration store, register the host to create a protection policy.

Discovery Store, Discovery Host Registration Store, Register Host Create Site Registration Store Create Protection Group Create Protection Policy.

Found storage, found that the host to create a site registration store, register the host to create a protection group to create a protection strategy.

Create a site registration store, register the host to create a protection group to create a protection policy.

can not sit down

vgchange

vgexport mkdir mknod vgimport

vgremove mkdir mknod vgcreate

In the backup client Tianjin ah master server resolution.

Add a resolution of the media server on the backup client.

When the master server adds the resolution of the backup client.

Add a resolution of the storage media to the media server.

If the system has monitored the file X has been cached on Node B, the client client1 can read the file directly from Node B.

If the system monitors that node B has cached file X, then node A can read the file from node

After HUAWEI OceanStor 9000 processes the request for reading the file X from client1, the system reserves the message on both node A and node B.

If the system monitors that node A has cached file X, then node A only caches the data of file X and does not cache its verification data

Manually clear the NMS alarm and turn off the alarm light.

Observe the symptom and collect the fault information.

Troubleshoot according to the " Event Reference " or " Troubleshooting " manual.

Maintain the faulty environment and contact technical engineer for support.

CVMA. log

CVNetcheck. log

CVService. log

CVD. Log

Restore (restore) refers to the previously generated backup set, get one or more objects, and then set to restore these objects.

Recovery (recovery) is a database that is consistent with the given point in time to ensure that this database can be opened.

Usually restored content lags behind the latest database SCN, so you need to ensure consistency through the restoration of the database.

The restored data files can use archived logs and online logs to complete the recovery.

The SVP needs to connect multiple engines through two PCI-e switches, and each engine ' s controller needs to be connected to a PCIe switch to ensure that the link redundancy provides reliability.

When the control plane is connected to the network, when the engine and the PCIe switch are interconnected, the port P0 of the A3 slot and the PCI switch PCI port can be used pick up.

Huawei OceanStor 18000 can be used to install SAS interface modules and interconnect disk enclosures in slot 0 and slot 5 of the Huawei OceanStor 18000.

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 to be 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

100

150

125

167

OLTP database generally have a large number of random write, it is recommended to choose RAID 10 to store data.

In order to improve write performance, all SQL server database data stored in the LUN write strategy is configured to " write back the image " .

Because the size of the SQL server page is 8K, in order to ensure the best performance of the database, NTFS allocated block size should not be less than 8KB.

SQL Server database instance memory size and recovery mode of choice has no effect on the performance of the database.

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

NTFS will all the data is a file, the file 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

True

False

600

408

387

550

True

False

Monitor GAB and check for changes in cluster members

Guarantee a single view of the members of the cluster

In the absence of a single cluster control, to prevent multiple nodes with Volume Manager to access shared storage

cluster abnormal recovery automatically master node

All controller nodes are in normal state

The number of partitions created has not reached the limit

Engine remaining cache of not less than 256M

Create a partition read and write cache the same size

TRUE

FALSE

The client must also support the SMB3.0 protocol

If the client has only one network port, you can not use the SMB3 function

If the client has a GE network port with the same type and number of ports, when the client uses SMB3 to access Huawei OceanStor 900, the client will establish multiple connection channels with Huawei OceanStor 9000

If the client has two or more GE and 10GE IB ports of the same type, after the SMB3 is applied, when one of them is disconnected from the network port, business will be interrupted.

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

True

False

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

High-performance layer 550G, performance layer 250G; capacity layer 6T

High-performance layer 400G, performance layer 250G; capacity layer 7T

High-performance layer 800G, performance layer 400G; capacity layer 6T

high-performance layer 600G, performance layer 300G; capacity layer 7T

8 KB

16 KB

64 KB

128 KB

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

Non-archiving

Archiving

nomount

mount

True

False

Create a mirror LUN for a common LUN. Due to internal information exchange, the LUN ID for hosts’ read and write I/Os changes based on the information exchange result.

A LUN stores 2 GB of data. Create a mirror LUN for this LUN. During the creation, the system automatically generates a copy. The total data amount of the copy and mirror LUN is 4 GB.

HyperMirror can be configured for external LUNs, and external LUNs can be configured as HyperMirror copies.

When configuring HyperMirror, its copies must come from different disk domains.

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

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

It does not consume any host resources.

It is lower in migration cost than gateway-layer solutions such as those based IBM SVC, and EMC VPLEX.

It requires services to stop only once, and the service stopping occurs after the migration.

It delivers higher migration speed than host-layer solutions.

The first time you configure and use eth1, you can directly configure the network port IP on the VTL console

In the command line configuration management network port directory / etc / sysconfig / network-scripts

In the command line configuration, you need to log in to the VTL operating system, the user name is root

After the command line configuration is complete, you need to restart the network service by running the service network restart command

TRUE

FALSE

True

False

Parameter file

Control Documents

archive log file

Data files

True

False

The local storage system does not occupy the local storage system when using LUNs in heterogeneous storage systems

For external LUNs, the local storage system can set value-added functions such as remote replication, snapshots, etc.

smartVirtualization uses multipathing software to connect heterogeneous storage in a multipath-redundant manner

smartVirtualization Dictate write data write efficiency is higher than the write-back efficiency

The shared disk file system uses the GPT format that caused the quorum disk to fail Online

The quorum disk can not be online due to the cluster feature that does not enable multipathing software

The MSCS Cluster service does not bring the volume resource online. The resource disk can not be online

Heartbeat network timeout causes arbitration disk and resource disk probability online

True

False

3,5,2,1,4

3,1,5,4,2

3,5,2,4,1

3,5,1,2,4