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IBM C4090-453 Exam Syllabus Topics:

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

Question 1

What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?

A. Subsystem Device Drivers
B. Call Home and Dial-in support
C. Built-in redundancy
D. Control-unit Initiated Reconfiguration support

Question 2

A customer has an existing D68800 which is installed in their data center. It now must have an extra frame added to support additional capacity growth, but there is no room to fit the expansion frame to the right.
Which option should be taken?

A. Fit the expansion frame to the left of the base frame
B. Configure the expansion frame with the DS8000 Passthrough feature to allow placement of the frame anywhere
C. Create an MES to replace all of the existing capacity with larger drives which support both the existing workload and the planned increase
D. Disruptively relocate the D68800 to make space to the right of the base frame for the expansion frame

Question 3

After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the disk system performance is in range.
How can the cache hit ratio be verified?

A. Issue the CLI command dscli>verify-perf-read hit-time period
B. Use Tivoli Storage Productively Center
C. Use the pen stat command in the CLI
D. Use the DSS000 Real Time Performance Monitor

Question 4

Shortly after the installation of a DSS000 and before Call Home has been fully set-up, the customer notices an error message relating to a failed DS8000 primary power supply.
What action should the customer take?

A. Report it to their IBM or Business Partner pre-sales technical support person
B. Mention it to the IBM Customer Engineer at the next monthly review
C. Raise a call with the IBM Hardware Support Center
D. Wait for IBM to make contact

Question 5

The customer's data center has an elevator with a maximum load capacity' of 2200 lb (1000 kg). A Disk Magic study has proved that the performance requirements of the workload are at Enterprise class levels.
What should be recommended?

A. A standard D68800. The Customer Engineer can then remove parts until the elevator load capacity' is not exceeded.
B. Configure the feature code on DS8800 which allows a shipping weight reduction.
C. Order a DS8800 with minimal disks and then MES upgrade with additional capacity' to the customer's requirements.
D. Redesign the solution to use modular systems, like IBM Storwize V7000, which could be delivered in lighter shipments.

Solutions: