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

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

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

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.

hard drive failure

The system detected that CK could not be repaired

Insert the drive within two minutes after being unplugged

IO access returns SECTOR FAULT error

If you use the HyperReplication function to migrate data on multiple LUNs used by the database, you must add multiple remote replication tasks to one consistency group.

The HyperReplication function can implement online data migration.

After data is migrated using HyperCopy or HyperReplication, services can be started without the need to make any configuration on the host.

If data is migrated using HyperCopy, the migration speed can be dynamically changed during the copy process.

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

Synchronous remote replication and asynchronous remote replication should use the progress of the bitmap

Synchronous Remote Replication To use differential logging, asynchronous remotereplication uses differential bitmaps

Synchronous remote replication and asynchronous remote replication are used snapshots

Troubleshoot a replication task in a remote replication consistency group Do not affect tasks in other groups

True

False

True

False

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 hostbusiness during execution

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

Both LUN copies and clones can be incrementally synchronized

The server initiates the establishment of a data connection request

The FTP client uses the pasv command to tell the FTP server its own IP and port number

FTP server uses the pasv command to tell the FTP client's own IPand port number

The target port number that initiated the data connection request may be 29999

The types of quotas include capacity quota and file quota.

Quota methods include calculating quotas, soft quotas and mandatory quotas.

Thesystem pre-allocates quotas for files before writing the file. When the user cancels the writing of the file being written, the system does not release a pre-allocated quota.

When the user continues to write data, the quota information has been used inthe InfoAllocator interface real-time updates.

windows operating system can create up to 4 partitions

Single partition capacity size limit of1TB

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

True

False

True

False

8 KB

16 KB

64 KB

128 KB

True

False

controlfile, datafile, pfile

pfile, datafile, controlfile

datafile, pfile, controlfile

pfile, controlfile, datafile

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

Canoperate 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.

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

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

use rmmod + driver name, remove directly

Directly uninstall the driver rpm package

kill directly kill the drive process

use modeprobe-r + driver name, remove directly

pubs

master

msdb

tempdb

Need to understand the business (applications and data, etc.), clear the goal of tuning.

After tuning all the system configuration parameters related to performance bottlenecks, judge whether the tuning goal is completed.

Back up business systems and data before tuning.

Monitor and analyze performance data by business processes, identify performance bottlenecks and analyze root cause.

Correct

mistakes

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

True

False

block is composed of a number of consecutive areas, block number starting from 1, the overall number, grouping

Each i node corresponds to a 1GE file or folder, which stores the description file size, file storage location and other information

The block group consists of a number of consecutive blocks, the number within the block group is determined by the block size

The superblock stores the basic information about the EXT3 file system

The backup server and the ring server can not communicate properly

The link between the backup server and the media server is faulty

Backup server SQL database failure

DDB is abnormal

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

can only be opened when creating a file object, business can not be opened or closed during data deduplication and compression function

Using online processing to deduplicate data before it is written to disk

When bothdeduplication and compression are turned on, the data will be deduplicated and then compressed

Use smart cache can accelerate the search performance of fingerprints deleted

100

150

125

167

mSCS

Oracle RAC

HACMP

SQL server

can not sit down

vgchange

vgexport mkdir mknod vgimport

vgremove mkdir mknod vgcreate

True

False

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.

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

OLTP

OLAP

VDI

SPC-1

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

Parameter file

Control Documents

Archive log file

Data files

True

False

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.

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.

It is an object-based approach to data replication

ROW snapshots are based on the cyclical manner of data replication

It can be manually set off by the user or system timing synchronization starting

It supports the Quota quota information of the main file system to the slave, no need to configurethe quota.

True

False

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.

96

4

32

12

TCP Header

IP Header

ISCSI Header

ISCSI data

You can plan back-end storage network for 9000 internal communications, without planning gateway address, and front-end network with the same network segment IP address.

Oceanstor 9000 front-end network and management network can be considered together, planning for the same network segment.

Back-end CE6850 switches need to use four stacked cables for stacking connection to ensure bandwidth requirements

The external NTPserver address and the Oceanstro 9000 front-end network need to communicate to ensure that the oacenstor 9000 system and client applications maintain time synchronization.