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IBM C4090-453 Exam Syllabus Topics:

SectionObjectives
Troubleshooting and Maintenance- Problem determination and diagnostics
- System maintenance procedures
Copy Services- Global Mirror (asynchronous replication)
- Metro Mirror (PPRC synchronous replication)
- FlashCopy functions
Installation and Configuration- Host attachment and connectivity configuration
- Initial system setup and planning
Storage Management and Operations- Performance monitoring and optimization
- Volume management and provisioning
DS8000 Architecture and Concepts- System architecture overview
- Hardware components and virtualization concepts

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. What z/OS solution supported by the D68000 is designed to provide continuous availability in cases of disk subsystem failure?

A) zHPE
B) HyperSwap
C) MIDAW
D) HyperPAV


2. If a customer experiences significant technical issues with an installed DS8000 system, which action should be taken immediately to report them?

A) IBM automatically opens an internal problem record based on the Call Home messages
B) The responsible IBM Customer Service Representative needs to open a problem record
C) Contact the responsible IBM sales representative who must handle all related communications
D) The customer needs to open a problem management request (PMR)


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


4. As with all types of technology. System z software occasionally needs to have maintenance applied to it to fix errors or to support enhanced functionally.
In the System z environment, this maintenance is known as:

A) Service Level sets
B) APAR5 and PTE5
C) Non-disruptive Code Loads
D) MLs and Patches


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


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: D
Question # 4
Answer: B
Question # 5
Answer: D

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