IBM IBM Certified Specialist C4090-456

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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

Question #1

A customer has purchased a six module XIV Gen3 for a new project, which is located in a new data center. A new requirement states that a portion of the project data must be replicated to an existing six module XIV (Gen2) at the customer's primary data center, 500 km away. The target XIV has sufficient capacity but no Fibre Channel connectivity exists between sites. The customer therefore decides to use iSCSI replication.
Which upgrade is required to meet the requirements?

A. replace the new (primary) XIV Gen3 InfiniBand switches with Ethernet switches
B. add modules to the new (primary) XIV Gen3
C. add modules to both XIV systems
D. add modules to the existing (secondary) XIV

Question #2

How does the data migration feature enable the smooth transition of a host to an XIV system?

A. By connecting the host to the XIV, which then provides access to the data on the legacy storage system while transparently copying the data across in the background.
B. By deploying an XIV unique implementation of VMware's Storage vMotion that has been engineered to support Linux and Microsoft hosts natively.
C. By enabling everyXIV PC portto be both target and initiator so that host requests are received bythe XIV and retransmitted to the legacy storage system simultaneously.
D. By using the XIV Host Attachment Kit (HAK) migration software to send concurrent writes to the legacy storage system and the IBM XIV simultaneously, while copying the older data across in the background.

Question #3

Following a proof of concept, it has been determined that an eleven module XIV system containing 2 TB drives is the minimum configuration suitable for the workload, which consists primarily of random writes. The customer is concerned about the upfront costs so the sales representative has suggested a six module system with 3 TB drives, which would also provide ample capacity for the application.
Given the customer's concerns, which configuration should the technical specialist recommend to best meet the customer's requirements?

A. a nine module XIV with 2 TB drives and six CoD activations
B. an eleven module XIV with 2 TB drives and eight CoD activations
C. an eleven module XIV with 3 TB drives and six CoD activations
D. a six module XIV with 3 TB drives and SSDs

Question #4

On an XIV system, what is the minimum hardware configuration when the Capacityl on Demand feature is used?

A. 6 modules
B. 15 modules
C. 9 modules
D. 12 modules

Question #5

A TELCO customer has an application that generates intensive small block random reads. The customer installed one XIV Gen3 system and is dissatisfied with this choice. They have enough performance on writes and sufficient capacity.
In order to consolidate more applications what should the technical specialist advise?

A. request IBM to change the nearline SAS drives with SAS 10k drives
B. order an extra frame with SAS 15k drives
C. orderthe SSD option and use itin conjunction with Q0S
D. use external storage with FC drives and virtualize it under XIV

Solutions: