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IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: XIV Storage System Overview | 20% | - Architecture and business value - Competitive advantages |
| Topic 2: XIV Hardware Architecture | 25% | - Gen1 / Gen2 / Gen3 differences - System components and modules - Reliability and serviceability |
| Topic 3: Capacity & Performance Design | 15% | - Workload sizing and best practices - Capacity on Demand - Performance optimization |
| Topic 4: Interoperability & Migration | 10% | - Host connectivity - Virtualization integration - Data migration methods |
| Topic 5: XIV Software & Features | 30% | - Snapshots and consistency groups - GUI and CLI management - Remote mirroring (sync/async) - Thin provisioning |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
1. When does XIV Gen3 SSD caching significantly improve performance?
A) for small block, sequential write I/O workloads
B) for small block, random read I/O workloads
C) for GPES random workloads
D) for large block, sequential read I/O workloads
2. Where is the XIV VSS Provider software installed?
A) on the interface modules of the XIV system
B) on the XIV maintenance module
C) on servers or VMs connected to the XIV system
D) as a plug-in to the XIV GUI
3. A customer is planning to buy a nine module XIV configuration. They have requested the exact power and cooling needs for this configuration.
What is the recommended document to consult for this information?
A) IBMXIV Storage System Data Sheet
B) IBM XIV Introduction and Planning Guide
C) IBM InteroperabilityMatrix
D) IBM Redbooks
4. Which XIV system feature simplifies creation of the XIV volume?
A) storage pools
B) thin provisioning
C) SSD caching
D) data distribution algorithms
5. On an XIV system, what factor must be considered when using snapshots?
A) restoring a snapshot invalidates all earlier snapshots
B) snapshots cannot be moved independently to another storage pool
C) 17 GB of hard capacity is immediately consumed at creation per snapshot
D) snapshots must be unlocked before restore
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: B |






