IBM C4090-456 : IBM XIV Storage System Technical Solutions V4

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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

Question 1

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

Question 2

A customer has legacy Windows 2003 servers to connect to an XIV. What software is required to be installed on the host?

A. XIV VSS
B. XIV Top
C. XIV GUI
D. XIV HAK

Question 3

An XIV administrator wants to migrate a legacy DS4700 to XIV. The DS4700 is mirrored across a low-bandwidth link to a second DS4700 at a second site. The XIV volumes will need to be mirrored to a second XIV using asynchronous replication.
What feature will help perform this task?

A. asynchronous migration
B. offline initialization
C. volume mirroring
D. cache-disabled volumes

Question 4

How does the XIV system protect data arriving from hosts?

A. MPIO distributes a single I/O down multiple paths to different XIV modules
B. data is written to a single module before acknowledgement to the host
C. all data is written to cache in two modules and then acknowledged to the host
D. each module internally mirrors its cache to a special segment of memory

Question 5

Compared to other IBM storage offerings, which of the following is unique functionality on an XIV system?

A. reduced single points of failure
B. IP based replication
C. prevents hotspots
D. ability to take snapshots

Solutions: