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Storage Architect – Performance & Virtualization : hh0-440 Exam

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Exam Number/Code: hh0-440

Exam Name: Storage Architect – Performance & Virtualization

“Storage Architect – Performance & Virtualization”, also known as hh0-440 exam, is a Hitachi certification. With the complete collection of questions and answers, Pass4sure has assembled to take you through 118 Q&As to your hh0-440 Exam preparation. In the hh0-440 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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1. Which level of Write Pending is normal for a busy OLTP Universal Storage Platform (USP) system adequately
managing the destaging of writes?
A.0% to 20%
B.20% to 30%
C.30% to 40%
D.40% to 50%
ANSWER: B

2. Which three key metrics are needed for sizing industry standard applications? (Choose three.)
A.IO read/write ratios
B.port speed
C.IO rates and data transfer rates
D.cache read hit ratios
E.number of ACP/BED pairs
ANSWER: ACD

3. In the Universal Storage Platform (USP) family, what is the maximum number of external ports that one
external LDEV can be attached to?
A.2
B.4
C.8
D.16
ANSWER: C

4. Which three statements are true for Hitachi Global Link Availability Manager (HGLAM)? (Choose three.)
A.HGLAM manages multiple instances of Hitachi Dynamic Link Manager (HDLM).
B.HGLAM assigns load balancing algorithms only at the server level.
C.HGLAM can alert which server is impacted when a fabric switch goes down.
D.HGLAM reports IO rate at the HBA level.
E.HGLAM can report a USP cache failure.
ANSWER: ACD

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5. Solaris IOSTAT shows that response times are degrading for a number of LUNs and that these LUNs are 100%
busy. The active queue values are in a range up to, but not exceeding 8, and the wait queue values are in the range
from 0 to 5 when the active queue is 7 or 8.
Which condition is implied by these values?
A.These are normal values for busy LUNs with a LUN queue depth of 8.
B.There are no more Tags available on this storage port due to heavy IO load.
C.There are no more Tags available for these LUNs at the port due to heavy IO load.
D.The HBA LUN queue depth is set incorrectly.
ANSWER: A

6. Click the Exhibit button.
Which three conditions are likely causes for the write pending rates illustrated in the exhibit? (Choose three.)
A.insufficient cache
B.loss of redundancy in write cache
C.heavy random writes to RAID5
D.heavy random writes to SATA drives
E.failure to distribute workload among sufficient array groups
ANSWER: CDE

7. Performance monitor data indicates that CHP utilization may be causing a bottleneck in a Universal Storage
Platform (USP) series system during periods of intense processing.
Which two actions should be considered to increase IOPS during the bottleneck periods? (Choose two.)
A.Configure the paths using high-speed mode.
B.Spread the load across more CHP processors and paths.
C.Spread the load across more RAID Groups.
D.Spread the load across more LUNs.
ANSWER: AB

8. Which three parameters will help to calculate a server’s maximum LUN queue depth to avoid the risk of SCSI
timeouts? (Choose three.)
A.The number of active LUNs mapped to a storage port.
B.The number of active servers in the cluster accessing the active LUNs.
C.The number of command tags supported by the storage port.
D.The number of disk drives supporting the LUN configuration.
E.The total number of LUNs mapped to the storage port.
ANSWER: ABC

9. Which Solaris MPXIO multi-pathing scheme should be used to avoid non-owning access with HDS modular
storage systems?
A.load_balance_none
B.load_balance_rr
C.load_balance_lba
D.load_balance_fixed
ANSWER: A
* pass4sure Hitachi hh0-440 Questions and Answers : 118 Q&As
* Updated: October 30th , 2008
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