Hitachi Vantara HCE-3700 Exam Questions Instant Access

Question 1

A customer complains about high response times. This occurs frequently with bursts of write I/O at 6,000 IOPS for 10 second periods during each minute. The write response is 60 ms during these 10 second periods. The average IOPS rate reported by Hitachi Tuning Manager over 1 minute is 600.

In this scenario, what is the average response time over 1 minute?

A10 ms

B30 ms

C60 ms

D90 ms

Answer : A

Question 2

For a VSP G1000 system serving a mission critical interactive workload, which two statements are true about VSD failover? (Choose two.)

AThe VSD receiving the workload of a failed VSD is not pre-determined.

BProviding reserved capacity to accommodate failure is a requirement when planning for capacity for normal operations.

CThe workload of a failed VSD board always transfers to its redundant partner VSD board.

DThe workload of a failed VSD board is dynamically redistributed among surviving VSD boards.

Answer : B, C

Question 3

A customer has a VSP G800 storage system with an HDT pool with internal SAS drives and a virtualized thirdparty array using SATA RAID 6. The virtualized array is connected to the VSP G800 using four 8 Gbps FC paths. The customer reports performance problems on an OLTP application deployed on a virtualized server using the HDT pool.

What are two reasons for this problem? (Choose two.)

AThe workload includes significant random writes to SATA over RAID 6.

BThe tier relocation is not assisting the OLTP application.

CThe size of Tier 1 is not sufficient to accumulate all of the hot pages.

DThe speed of the FC links is insufficient.

Answer : A, D

Question 4

You are sizing a VSP G4000 for a customer who requires good performance but has a very limited budget.

You now must select a cache size between 64 GB and 128 GB.

Which three conditions will affect your selection in this situation? (Choose three.)

AThe customer plans to use Cache Logical Partitions (CLPRs)

BThe customer environment is mainly VMware.

CThe number of LDEVs that are available.

DThe customer will use ShadowImage.

EThe number of connected hosts.

Answer : A, C, E

Question 5

A 10K RPM Small Form Factor 600 GB disk drive has a 3 ms average rotational latency and a 4 ms average seek time. How many random read IOPS would you expect from a 4D+4D RAID group using these drives before any consideration for cache hits or queuing optimization benefits?

Aapproximately 570 IOPS

Bapproximately 1,140 IOPS

Capproximately 1,530 IOPS

Dapproximately 2,280 IOPS

Answer : D

Question 6

A VSP G800 HDT pool contains FMDs, NL-SAS drives, external storage with 15K 600 GB SAS drives, and external storage with 10K 900 GB SAS drives.

Which tier level contains the NL-SAS drives in this configuration?

Answer : A

Question 7

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.)

ADecrease the monitoring period of the HDT pool.

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

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

DIncrease the size of Tier 2.

Answer : C, D

Hitachi Vantara Certified Expert - Performance Architect HCE-3700 Exam Questions