H13-629 Practice Exam Questions with Answers HCIE-Storage (Written) Certification

Run / usr / bin / readvgcla-V dhbvg -Fstatus on node A and run / usr / bin / putvgda_V dhbvg -a on node B.status = 1

Run / usr / sbin / rsct / bin / dhb_transmit hdisk8 on Node A and run / usr / sbin / rsct / bin / dhb_receive on Node Bhdisk8

Run / usr / sbin / rsct / bin / dhb_read-p hdisk8 -r on node A, / usr / sbin / rsct / bin / dhb_read-p hdisk8 -t

Run echo 1 | / usr / bin / dd of = / dev / rhdisk10 bs = 4k skip = 2 count = 1 on Node A and run on Node Bcommand / usr / bin / dd if = / dev / rhdisk10 bs = 4k skip = 2 count = 1

high water to 90

high water to 70

low water line 10

low water line 30

Dynamic domain name, which returns the dynamic IP address of the node for the client, supports the failover function and is recommended for CIFS protocol sharing

Static domain name, which returns the domain name of the node's static external IP address toclients, is recommended for NFS protocol sharing

dynamic external IP address, node failure, the dynamic IP address can be automatically assigned to other working nodes, the client can pass againThis IP address is connected to the OceanStor 9000

static external IP address, the node fails, the client can not access the oceanstor 9000 through the IP address

10

25

50

100

TRUE

FALSE

VM NIC adapter error

The media server backup service is abnormal

The backup client service is abnormal

Virtual machine disk class behavior IDE

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.

Check if the size of the migrated file is the same as the original data.

Check if the number of documents corresponds to the original data

Check if each file with read and write permissions corresponds to the original data

Whether the time for reviewing the case file corresponds to the original data.

It can quickly recover valid data, not updated data does not need to be restored.

Completereconstruction requires data difference log information.

Recovery Refactoring uses a scenario where the disk can not be used for downgrade.

In the event of a sudden disk failure recovery reconstruction.

Rsize / wsize, read and write the maximum size of each block, it is recommended to adjust to the maximum. General Linux operating system environment, the maximum value of 1M.

Async, allowing asynchronous data write, synchronous write requirements. NFS server must brush each data into the hard disk before it can return success delay higher.

Noatime, if you do not need to record the file access time, youcan increase this parameter to avoid frequent access, modify the access time to open pin.

Nolock, if there is a shared file between NFS clients, you can use this parameter. Reduce service-side file lock overhead.

sql server authentication

Windows authentication

Log in as super user

Otherways when landing

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

Disaster recovery side of the 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, and the incremental data link is abnormal during the synchronization.

can not sit down

vgchange

vgexport mkdir mknod vgimport

vgremove mkdir mknod vgcreate

mSCS

Oracle RAC

HACMP

SQL server

5 devices TOE NIC A0, B1, and A0, B3 inserted into the PCIe slot will not affect the system. Deployment will not affect the network bandwidth, so it cannot be adjusted.

The signal cables are long and need to be strapped to the cabinet or placed on the bottom tray.

Label NODE 01 A0-0 The signal cable is inserted in the network port A0-1. The signal cable labeled NODE01 B3-1 is inserted in the network positionB3-0, due to the same network card two network port peer, you can place the wrong line, you cannot adjust.

CE6850 switch connected to two stacked copper cables, one of which is needed to post-cold more cold, because it does not affect the network interoperability. You can base this software debugging.

Planned Migration

Failover

Business Recovery

fault recovery

2TB NL-SAS hard drive, 8D + 2P RAID6 configuration

With 2TB NL-SAS hard disk, configure 8D + 1P RAID5

600GB 15Krpm SAS hard drive, 8D + 1P RAID 5 configuration

Configure raid 10 with 600GB 15rpm SAS hard disk

The service plane uses GE channels for data transmission.

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

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

When the GE switch channel fails, you can use the PCIe switch channel as a backup data transmission channel.

In addition to path failover, multipathing also provides load balancing. Load balancing is the process of distributing I / O load across multiple physical paths.

In the event of a path failover, the virtual machine I / O delays Nintendo pump by 60s.

If the failover takes a long time to complete, the windows virtual machine may interruptthe I / O and eventually fail. To avoid this, set the windows virtual machine timeout to at least 30 seconds.

When coordinating vmware NMP and any installed third-party MPP, the PSA (Pluggable Storage Architecture) performs load and unload multipathingplug-ins and handles physical path discovery and removal.

True

False

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.

True

False

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.

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.

Changethe type of virtual disk created.

oplock

noguest

fs-mode

hide-unreadable

To prevent changes in the directory or file protection time because of thechanges in cluster time, a directory or file is configured with WORM attributes. After the directory or file will use the WORM clock to time, set the WORM clock. When the system will be based on the clock, user’s file will not be modified over the protection period.

If the cluster time is earlier than the WORM clock, the WORM clock will be chased every hour for up to 138 seconds to adjust. If the cluster is after the WORM clock, the WORM clock adjusts to the cluster time.

When a directory is configured as a WORM root directory, all subdirectories, new directories and new files in the directory automatically get the parent directory of WORM attributes. These attribute parameters can only be configured when the WORM root directory is set. Only then the user’s view can not be modified.

WORM logs are used to record the logs related to WORM operations and record them according to the time. The monthly log is a file that can be modified and can delete the file.

8K

16K

64K

128K

FC InfiniBand SAS PCI-edouble can be a carrier of the SCSI protocol

InfiniBand Transmission Speed "FC Transmission Speed" iSCSI transmission speed

FCoE technology for GE and 10GE Ethernet

FCoE SAS InfiniBand has its ownswitch product

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

Stop one or more virtual machines

Suspend one or more virtual machines

Set the virtual machine restart priority

Set host isolation response

Add Library # 2 path for Policy # 1

Configure the data path to "Use Alternate Data Paths" mode

Set the data path to Round-Robin between Data Paths

Configure the data path to "Use preferred Data Path" mode

True

False

One Ethernet port can create multiple logical ports

IfEthernet 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.

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

True

False

A storage pool can create two types of LUNs, Thick LUN and Thin LUN

When creating a storage pool, the minimum number of SAS disks in the hard disk domain where the storage pool is located is 9 disks when the performance layer RAID policy is selected as 8D + 1P

In the RAID 2.0 virtualization architecture, the hot spare space in the storage pool is distributed on each member disk in the storage pool

RAID 2.0 virtualization architecture, the storage pool can contain three storage tiers, and each tier can be configured with a number of different RAID strategies

FC switch Zone conflict

FC switch IP address conflict

FC Switch Switch Name conflict

FC switch domain ID conflict

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

When the access to the N8500 is all on the intranet, and the client traffic is not equal, it is recommended to configure the "balance-alb" mode (that is, bond 6 mode).

When creating a LUN, write business for a long time, the stripe depth recommended 512KB.

If the RAID group is configured as RAID 6, the number of member disks is recommended to be 9 disks, and it is not recommended to configure the RAID group.

Fencing LUN should be placed in the same RAID group.

vip

ocr

dlm

asm

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.

Toc heck whether the UltraPath is installed successfully:#lslpp -l UPforAIX *

To check the disk is recognizedcorrectly:# lsdev-Cc disk

To check the WWN number of the HBA:#lscfg -pvl fcs0

To modify the network card IP address:#lsdev -Cc if

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

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)

True

False

For the "configuration operating system failed" error, check the node / var / log partition and clean up the partition, initialize the system, and then re-run the software deploy

If it is not a failure, restart the deployment after reinstalling the deploy deployment package

After the deployment fails, run the sh /opt/huawei/deploy/script/clean.sh command on each node to initialize the system and restart the software department

After deployment abnormalities, reboot all nodes, reinstall oceanstor tookit, and start the software deployment

/ var / log / messages

/ var / log / hima_message

/var/VRTSvcs/log/engine_A.log

/ var / log / warn

A quota tree can be shared using a protocol. In addition, a quota tree that is being shared cannot be renamed or deleted.

You can move files (NFS protocol) or cut files (CIFS protocol) across quota trees.

A hard link cannot be established between two different quota trees.

An administrator can delete non-empty quota trees through CLI or GUI.

Intelligent prefetching for a single data stream read application, or cannot determine the sequence of readapplications

variable prefetching suitable for fixed-size sequential read applications, such as multi-user liunx media on demand, users use the same code stream

Fixed prefetch for database applications

Not prefetched for multi-user multimedia on demand

smartErase

smart Dedupe

smart Compression

Volume mirror

City Ethernet, asynchronous data replication

City FC network, synchronous data replication

Off-site Ethernet, asynchronous data replication

remote FC network, synchronous data replication

SQL Server Authentication

Windows authentication

Log in as superuser

Other ways when landing

After creating a mirrored volume for a normal LUN, the server read-write IO results in a change as a result of internal information exchange.

The amount of data actually stored on a LUN is 2G, the total copy of the data is 4G. A volume image is created for the LUN, the LUN is mirrored when the copy is generated during system creation.

You can configure a volume mirror for external LUNs or configure external LUNs as mirror copies.

When configuring volume mirroring, mirror copies are required from different disk domains.

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.

When using the InfoEqualizer function, you need to configure DNS. If you use an external DNS server, when configuring the DNS server, there is a setting of "reverse lookup zone name", network ID setting in this tab, you need to input network ID in reverse order.

When there is a DNS server in the user network, the DNS server in the user network does not need to configure the forwarding record. When the user network without DNS service server, configure the InfoEqualizer DNS IP address as the DNS server's address on the client.

The root domain name is the domain name InfoEqualizer configured for the cluster. This domain name must be configured as the fully qualified domain name, that is, the domain name that includes the root node.

The domain name of the partition is configured as the relative domain name, and the root domain name of the InfoEqualizer is automatically taken as the suffix of the domain name, and the full name of the domain name is formed with maximum support of 32 partitions.

Pause the app before the snapshot, go to the hardware storage snapshot to trigger a common snapshot with application consistency.

Backup software snapshot function can automatically find the storage volume of the file system, database, mail system.

Background snapshots can be indexed to ensure application recovery and small particle recovery.

Snapshots backup can be offline, the backup server almost has no impact.

Replacing the optical module of port 0 in slot A0 of node 0.

Replacing the light of the P0 port in the A0 slot of 0 node.

Replacing the optical module of the port connected to port 0 of the corresponding 0-node A0 slot on the switch.

Reseat the FC interface card corresponding to slot 0 of node A0.

CVMA. log

CVNetcheck. log

CVService. log

CVD. Log

Recommended threshold 10GBSoftware threshold 15GBGrace time 10 daysHard threshold 20GB

Recommended threshold 10GBSoftware threshold 18GBGrace time 10 daysHard threshold 20GB

Recommended threshold10GBSoftware threshold 15GBGrace time 15 daysHard threshold 20GB

Recommended threshold 8GBSoftware threshold 15GBGrace time 10 daysHard threshold 20GB

vg01

vg02

vg01 vg02

empty

96

4

32

12

lspci | grep SCSI

cat / proc / scsi / scsi

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

lspci | grep Ethernet

A bank has more than XXcustomers 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.

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

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

AIX system how to connect to the new storage device.

How AIXsystems 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.

Use the same type of disk as the master

Raid should beset the same as the master

The capacity of Lun and primary LUN is the same

Use the same number of disks as the master

True

False

Read and write strategies include permanent, default, recycling.

Recycling strategy is suitable for business scenarios that require high performance and small amount of data.

Select out the recycling strategy when the data or write data is the lowest priority.

Resident strategy is suitable for large read and writedata, and read-only scenes.

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

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

Basic rules of retention

Advanced retention rules

Extended retention rules

Special retention rules

True

False

Scenario: Sequencing large IO services, especially 1M IO scenarios, with the phenomenon that the back-end read bandwidth is much larger than the front-end read bandwidthTuning: Turn offthe corresponding LUN prefetch policy

scene: the order of pressure reading and writing business conditions, high utilization of hard drivesTuning means: increase the unplug-thresh device hard disk device

Scenario: Oracle database in the operation ofdata backup, the data on the LUN bandwidth does not meet the requirements and accompanied by high utilization of hard diskTuning means: the formal creation of POOL to increase the depth of the points

Scenario: In the case of single concurrent or low concurrent read service, the delay is found to be largeTuning means: change disk unplug 8 Modify unplug - thresh increased from 4 to 8

LDAP authentication

WSSE certification

NIS certification

AD domain certification

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.

3.2Mbps

128Mbps

114 Mbps

18 Mbps

The object-based approach to data replication.

ROWsnapshots based on the cyclical manner of data replication.

The user can trigger manually or system timing synchronization.

Support dequota quota information of the main file system to the slave, no need for the slave to configure quota.

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 connectedto the OM management network switch to complete the software deployment

Does not support the system disk backup and recovery operations

When enabling the snapshot-based backup mode, the NDMP backup feature requires the file system to support snapshots. Otherwise, the backup task can not be successfully performed.

Based on the snapshot backup, snapshots are created for the current directory. Because the extended attributes of the current directory receive the snapshot protection, the current directory extended attributes will be backed up.

Does not support the system time zone or other time-related adjustments, does not support daylight saving time.

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

True

False

Log analysis tools can run on any PC, do not need to interoperate with the storage system, the analysis process time according to the amount of the log may be, may it takes a long time

Log Analysis Tools After starting the analysis, the analysis tasks need to be stopped due to other reasons. Click on the analysis tool to abort this analysis

Engineer A deleted the original compression of the results of the collection, then the results will be collected to re-catalog the contents of all documents compressed into zip format for the dayChi analysis tools for analysis

After the analysis is completed, all the problems caused by the log analysis will be presented in the list of problems, and "View Details" contains the approximate cause of the problem and processing advice

True

False

1KM

10KM

25KM

50KM

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.

Use the mount command to view the file system mount status is read-only

mount the damaged file system, thedirect implementation of fsck to repair

should not be arbitrary on the normal operation of the fsck file system

By collecting, var / log / message host log information to locate file system failure

Parameter file

Control Documents

archive log file

Data files

1

2

3

4

The business disk uses the SAS disk, RAID type configured as 11 disk RAID6

The pre-fetching rate of the service LUn is set to "not prefetch"

Slice depth of the business LUN, select "32K"

Map the LUN to the host group of the N8000 instead of the host. The main LUN ID is configured by default, starting from 0

With continuous random read: RAID 5 performance is superior to RIAD10

With sequential read and write, RAID 5performance are better than RAID10

With sequential write, RAID10 better than RAID5 performance

With continuous random read, RAID 5 and RAID 10 performance is equal.

True

False

Non-archiving

Archiving

nomount

mount

True

False

UniformView software installed by the user can specify a directory, create a UniformView directory in this directory as a mounted root table of Contents

The administrator performs a mount command on theUniformView client to mount a different storage domain with the cluster ID and the static IP address

UniformView Resolve mount command, in the mount root directory, followed by the creation of a cluster ID name of the directory

Using the NFS protocol, mount the specified shared directory to the cluster ID directory read-only using the management IP address

control file

data file

log file

configuration file

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 multipathingsoftware 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

True

False

TRUE

FALSE

In order to allow clients to access a single file system, N8000 can provide higher bandwidth and capacity, it is recommended to create a striped file system

Large file access business is a largeIO sequential read and write, choose a smaller size of the strip and block size to provide higher bandwidth

From a performance perspective, it is recommended that the total number of files in a single file system be less than 80 million

For reliability, the recommended number of file systems is less than 40

True

False

To check the cluster node use the command:olsnodes -n

To check the cluster status use thecommand:crsctl check cluster -allcrsctl check crs

To check cluterware resource status use the command:crsctl stat ser -t

To check oracle ASM operating status use the command:ocrcheck

controlfile, datafile, pfile

pfile, datafile, controlfile

datafile, pfile, controlfile

pfile, controlfile, datafile

100

120

140

180