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Hitachi HCE-3700 Hitachi Vantara Certified Expert - Performance architect Exam Practice Test

Demo: 9 questions
Total 60 questions

Hitachi Vantara Certified Expert - Performance architect Questions and Answers

Question 1

A VSP G800 customer has one HDT pool with three tiers and they report a high frequency of relocations up and down between Tier 1 and Tier 2, affecting the HDT pool performance.

Which two actions will help solve the issue? (Choose two.)

Options:

A.

Decrease the monitoring period of the HDT pool.

B.

Increase the size of the grey zone between Tier 1 and Tier 2.

C.

Change the HDT pool setting from Period mode to Continuous mode.

D.

Increase the size of Tier 2.

Question 2

What are two benefits of placing transaction log files on RAID 1+0 disks for Microsoft SQL Server databases rather than RAID 5 disks? (Choose two.)

Options:

A.

Multiple transaction log files are supported.

B.

Faster recovery after disk hardware failure is realized.

C.

Capacity utilization rates are improved.

D.

Microsoft recommendations are followed.

Question 3

Which three functions are performed by a VSP G1000 Virtual Storage Director (VSD)? (Choose three.)

Options:

A.

It executes host I/O requests.

B.

It calculates parity.

C.

It manages cache segment usage.

D.

It moves data to/from cache.

E.

It executes software such as HDP or copy products.

Question 4

You are evaluating storage system performance for an interactive workload. What are three appropriate

criteria in this situation? (Choose three.)

Options:

A.

customer requirements

B.

throughput (MBs)

C.

elapsed time

D.

storage system response time

E.

resource utilization (% busy)

Question 5

For which two purposes is the SVP Performance Monitor suitable? (Choose two.)

Options:

A.

Reporting by device owner

B.

Annual trend analysis

C.

Real time observations

D.

A reference for verifying the accuracy of other performance tools

Question 6

A customer wants to add a new flash-based tier to an existing HDT pool. You refer to the Tier properties chart to determine if the workload in a disk-based HDT pool is a good candidate for adding a new and higher flash tier.

In this scenario, what does the chart tell you?

Options:

A.

The utilization line starts at a low level and gradually climbs to a high spike at the extreme right-hand side.

B.

The utilization line starts at a medium level on the left side and fails away slowly.

C.

The utilization line stays at a high level until half way across the chart then drops sharply.

D.

The utilization line starts at a high level on the left side then drops away sharply.

Question 7

Which three statements are true regarding the Hitachi external storage architecture? (Choose three.)

Options:

A.

Enabling Cache Mode increases exposure to problems with high Cache Write Pending.

B.

Enabling Cache Mode allows destaging asynchronously from host I/O.

C.

Enabling Cache Mode always improves performance.

D.

A System Option mode can force in sequence destaging even when destaging asynchronously.

E.

Disabling Cache Mode for an external LDEV eliminates the use of cache.

Question 8

Which two conditions will cause high Cache Write Pending on a VSP G8000? (Choose two.)

Options:

A.

over-utilized external storage

B.

high port utilization

C.

inadequate WAN bandwidth for TrueCopy Asynchronous

D.

attempting to write to a RAID group at a rate beyond its ability

Question 9

You need to run a benchmark test to verify the performance of a new multi-user database storage

implementation before loading the real data.

What are three features you will need in the benchmark/workload generator to accomplish this task? (Choose three.)

Options:

A.

variation of thread count

B.

variation of sequential and random access

C.

variation of RAID level

D.

variation of HBA queue depth

E.

variation of read and write

Demo: 9 questions
Total 60 questions