Exam Name: IBM System Storage DS8000 Technical Solutions V3
Certification Provider: IBM
Corresponding Certification: IBM Certified Specialist
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IBM C4090-453 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshooting and Support | 10% | - IBM support resources and documentation - Monitoring and problem determination |
| Topic 2: Advanced Functions and Copy Services | 30% | - FlashCopy, Metro Mirror, Global Mirror - Easy Tier, thin provisioning, encryption - z/OS specific functions: PAV, zHPF, Hyperswap - Integration with VMware, GDPS, PowerHA |
| Topic 3: Planning and Sizing | 25% | - RAID types and drive selection - Sizing tools: Disk Magic, Capacity Magic - TDA process and interoperability validation - Requirements analysis and solution design |
| Topic 4: Architecture and Overview | 20% | - RAS features and reliability - Supported environments: Open Systems and System z - DS8000 hardware components and architecture - Storage hierarchy and cache management |
| Topic 5: Configuration and Management | 15% | - DS Storage Manager GUI and DS CLI - Migration strategies and upgrades - License models and feature activation |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
Which of the following items would suggest that the use of space efficient FlashCopy for the Global Mirror secondary volume could present an issue?
- A. The customer is using Tivoli Storage Productivity Center for Replication to manage Global Mirror
- B. The workload has a large amount of heavy sequential write activity
- C. There is a long distance between the primary and secondary sites
- D. There are multiple primary disk subsystems in the Global Mirror session
Correct Answer: B 🗳️
A customer wants to collect performance data from a newly installed IBM System Storage DSS700 to determine if the system meets expected benchmarks using their application test data.
Which tool best gathers the performance data?
- A. Tivoli Storage Productivity Center V5.1
- B. Tivoli Storage Resource Manager
- C. IBM DS Storage Manager
- D. Tivoli Storage Productivity Center for Data
Correct Answer: A 🗳️
The DS CLI can be invoked in which three modes?
1.Single-shot command mode
2.Interactive command mode
3.Script command mode
4.Background command mode
- A. 1, 2, 4
- B. 1, 2, 3
- C. 1, 3, 4
- D. 2, 3, 4
Correct Answer: B 🗳️
Which of the following statements about the three-site solution Metro z/QS Global Mirror (MzGM) is true?
- A. MzGM is a multi-target solution where the primary device is replicated both synchronously and asynchronously
- B. MzGM does not support z/Linux data on CKD devices
- C. MzGM supports distributed systems data on PB devices
- D. MzGM can be managed by GDPS and Tivoli Storage Productively Center
Correct Answer: A 🗳️
A customer is planning to implement a new DS8000. They want to keep management of the DS8000 to a minimum. Which is the preferred method for allocating volumes to assist with this?
- A. Rotate Extents to allow granular placement of extents across multiple ranks
- B. Rotate Volumes to allow volumes to fill ranks sequentially
- C. Rotate Ranks to allow random positioning of ranks across arrays
- D. Rotate Arrays to allow optimum placement of arrays in the DSS000
Correct Answer: A 🗳️
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