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IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: XIV Hardware Architecture | 25% | - System components and modules - Gen1 / Gen2 / Gen3 differences - Reliability and serviceability |
| Topic 2: Capacity & Performance Design | 15% | - Workload sizing and best practices - Capacity on Demand - Performance optimization |
| Topic 3: Interoperability & Migration | 10% | - Host connectivity - Virtualization integration - Data migration methods |
| Topic 4: XIV Storage System Overview | 20% | - Competitive advantages - Architecture and business value |
| Topic 5: XIV Software & Features | 30% | - Thin provisioning - Remote mirroring (sync/async) - GUI and CLI management - Snapshots and consistency groups |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
1. What is the benefit of VMware VAAI functionality?
A) allows offloading extended VMware operations to the XIV system
B) integrates VMware disasterrecoverywith XIV remote replication
C) extends XIV storage provisioning functions to VMware vOenter
D) provides multipathing for VMware servers to XIV systems
2. A customer wishes to mirror volumes between two XIV systems across Ethernet. What is the simplest way to achieve this?
A) use the XIV system's SCSI ports
B) connect interlace modules using a crossover cable
C) route Fibre Channel across IP
D) route InfiniBand across Ethernet
3. XIV Quality of Service limits I/O to which of the following?
A) consistency groups
B) hosts
C) storage pools
D) mirrored pairs
4. How does IBM XIV SSD technology provide longer life over competitors' use of SSD technology?
A) hybrid algorithms combine features of SSDswith existing HDDsin the same unit
B) IBM SSDs are filled with write blocks of 1024kb in random I/O operations
C) patented wear-leveling algorithm designed for SSD longevity
D) common off-the-shelf components minimize the use of SSDs for write environments
5. In a six module XIV system, I/O activity involving a specific logical volume is handled by how many spindles?
A) 108
B) 36
C) 180
D) 72
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: D |






