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certified modular integration specialist exam : hh0-200 Exam

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Exam Number/Code: hh0-200

Exam Name: certified modular integration specialist exam

“certified modular integration specialist exam”, also known as hh0-200 exam, is a Hitachi certification. With the complete collection of questions and answers, Pass4sure has assembled to take you through 109 questions to your hh0-200 Exam preparation. In the hh0-200 exam resources, you will cover every field and category in Hitachi Data Systems helping to ready you for your successful Hitachi Certification.

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13. The performance of a response critical application generating a majority of 4 KB IOs has progressively
deteriorated on a new modular storage system as unplanned development and general file serving workloads have
been added. The system administrator is convinced that this is due to falling cache hit rates.
Which three actions will improve the cache hit rates of the response critical application? (Choose three.)
A.Place the response critical application in its own cache partition.
B.Upgrade the cache from 8 GB to 16 GB.
C.Reduce the application cache partition segment size from 16 KB to 8 KB.
D.Move the development and general file server workloads to another storage system.
E.Move the development and general file server workloads to lower performance tier RAID Groups.
ANSWER: ABC

14. Which three actions will help to reduce the level of Write Pending data in cache during periods of intense
random update processing? (Choose three.)
A.Switch to faster disk drives.
B.Migrate from RAID5 to RAID1.
C.Spread the load across more RAID Groups.
D.Spread the load across more ports.
E.Spread the load across more LUNs.
ANSWER: ABC

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15. Which three parameters indicate that LUN ownership access or changes may be causing a performance
problem in an HDS modular storage system? (Choose three.)
A.The total cache queue drops below 100% for any 1 minute measurement period.
B.The cache free queue drops below 100% for any 1 minute measurement period.
C.IOPS are recorded to the same LUN from different controllers over several measurement periods.
D.The LUN C-CTL value does not match the D-CTL value.
E.The Cache Write Pending level is at a high threshold level.
ANSWER: ACD

16. Which three metrics aid in calculating how long a block of data remains available in cache after its last access?
(Choose three.)
A.IOPS rate into the cache partition or storage system
B.number of available cache segments
C.the cache hit rate
D.average response time
E.average LUN queue size
ANSWER: ABC

17. The performance of an audio streaming modular storage system has deteriorated as more streams have been
added. Audio streaming is the only workload on the array and the store consists of many thousands of separate
audio files. Cache hit rates drop quickly as several streams are started.
Which two will improve the prefetch for the audio but prevent prefetch taking place for the directory accesses?
(Choose two.)
A.multi-stream mode
B.count of sequential judgment
C.high speed write mode
D.disable verify after write
ANSWER: AB

18. Which two metrics indicate that a modular storage system is receiving write IOPS much faster than they can
be destaged or written to disk, and that inflow control has occurred? (Choose two.)
A.Cache Write Pending is at a high threshold limit.
B.Port Write Hit Rate % is less than 100.
C.The number of Write IOPS is higher than the number of Read IOPS.
D.The Write MB/s throughput is greater than the Read MB/s throughput.
ANSWER: AB

19. Which two techniques can be used in an HDS modular array to ensure maximum throughput (MB/s) in a large
block application such as oil exploration analysis, medical, or video file storage? (Choose two.)
A.Build the RAID Groups so that all the back-end loops have the same number of disks.
B.Build the RAID Groups vertically so that all disks in the same slot position are in the same RAID Group.
C.Use LUSE to build volumes that are spread across multiple RAID Groups.
D.Use host based striping to distribute the load across both controllers.
ANSWER: AD
# pass4sure Hitachi hh0-200 Questions and Answers : 109 questions
# Updated: October 29th , 2008
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