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HH0-300 Practice Exam Questions with Answers HITACHI DATA SYSTEMS CERTIFIED EXPERT - REPLICATION SOLUTIONS ARCHITECT Certification

Question # 6

If write MB/s is unavailable for an application, which three metrics should be used together to determine write throughput? (Choose three.)

A.

Total IOPS

B.

Read/write ratio

C.

Block size

D.

Read IOPS

E.

Link latency

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Question # 7

You are advising your customer on deploying host-based data collectors According to HDS, what are three recommendations? (Choose three.)

A.

Start all collectors during the same time period.

B.

Start collectors at different points in time.

C.

Collect data for six weeks.

D.

Collect data on non-replicated systems.

E.

Collect data during peak workload.

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Question # 8

A customer is running two production sites. They are using DWDM links to connect their sites. The customer wants to extend their SAN between both sites.

What are two benefits of extending their SAN? (Choose two.)

A.

It offers high bandwidth for a short to medium distance.

B.

It simplifies SAN management.

C.

It is a low cost solution.

D.

It eliminates the need for FCIP converters.

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Question # 9

What would meet a "near zero" RTO requirement?

A.

TrueCopy and Hitachi Storage Cluster

B.

Hitachi Universal Replicator and remote ShadowImage

C.

TrueCopy and manual host failover

D.

TrueCopy Extended Distance and manual host failover

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Question # 10

What is the correct formula to calculate Hitachi Universal Replicator bandwidth sizing?

A.

PeakRollingAverage(WriteMB/sec)

B.

PeakRollingAverage(WriteMB/sec)+30%

C.

Peak(Write MB/sec)

D.

Peak(Write MB/sec)+30%

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Question # 11

A customer is concerned with maintaining real-time recovery volumes across several hundred kilometers with minimal impact to host response time. Network infrastructure between the two facilities is subject to periodic bandwidth reductions due to surges in overall network activity. The customer is unwilling to invest in additional network capacity.

Which replication approach should you recommend for this application?

A.

Synchronous replication

B.

Mediated point-in-time replication

C.

Journal-based asynchronous replication

D.

In-system replication to virtualized storage

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Question # 12

A customer uses a shared network link with Hitachi Universal Replicator. They want to reduce the impact of other network traffic on Hitachi Universal Replicator.

Which two actions will accomplish this task? (Choose two.)

A.

Implement QoS on their network link.

B.

Add additional Initiator/RCU ports.

C.

Dedicate a network link to Hitachi Universal Replicator.

D.

Increase Hitachi Universal Replicator journal size.

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Question # 13

A customer has 30 hosts to replicate on a non-HDS storage array.

Which tool is used to collect open systems workload data?

A.

SAR

B.

RMF

C.

TMEA

D.

RCEA scripts

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Question # 14

A customer is planning to replicate 66 TB of data using Hitachi Universal Replicator.

What are three considerations for sizing the expected solution? (Choose three.)

A.

number of disk drives of the primary system

B.

total number of the IOPS for the environment

C.

the percentage of writes for the environment

D.

number of RAID groups for journal disks at both sides

E.

the number of back-end directors on the recovery system

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Question # 15

You want to calculate resource requirements for Hitachi Universal Replicator.

Which two formulas are appropriate? (Choose two.)

A.

Bandwidth = peak rolling average in MB/sec

B.

Journal Capacity = (peak rolling average write MB/sec) * RPO (minimum of 6 GB)

C.

Host delay = 2 * [(distance between MCU and RCU) / (speed of light)] + losses due to network overhead

D.

Number of RAID groups for journal volumes = (peak rolling average MB/sec based on RPO) / (total throughput per RAID group)

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Question # 16

Your customer has a 300 Mbps line but is unable to get more than 10 Mbps throughput from the Hitachi Universal Replicator pairs.

Which system option mode (SOM) setting is causing this problem?

A.

SOM 466 is set to ON.

B.

SOM 466 is set to OFF.

C.

SOM 474 is set to ON.

D.

SOM474issettoOFF.

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