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IBM C4090-453 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Installation and Configuration | - Initial setup
|
| Administration and Monitoring | - System management
|
| Copy Services and Data Replication | - Replication technologies
|
| Problem Determination and Maintenance | - Maintenance procedures
|
| DS8000 Architecture and Concepts | - Storage system fundamentals
|
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
1. 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
2. What should be used to most effectively model System z customer workload for implementation on IBM DS8800?
A) SMF Analyzer
B) RMF Magic only
C) Disk Magic only
D) RMF Magic and Disk Magic
3. The value-based licensing for the Operating Environment License (OEL) is priced based on what characteristics?
A) Only the total raw capacity
B) Disk drive type and raw capacity
C) Amount of cache, number of host adapters, usable capacity
D) Only the amount of usable capacity
4. A System z customer would like confirmation of the actual amount of additional storage capacity they will get if they add a drive set of 300 GB 15,000 rpm drives in a RAID 5 configuration.
Which tool would be used to provide this information?
A) RMF Magic
B) Disk Magic
C) Comprestimator
D) Capacity Magic
5. Which statement about I/O Priority Manager on the DS8000 is true?
A) It needs at least two tiers of disks to work
B) It can be more granular on z/OS than any other operating system
C) It allocates cache on 4K boundaries to improve performance
D) It can interface with VMware VAAI primitives to improve performance
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: B |
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