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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: Capacity & Performance Design | 15% | - Performance optimization - Workload sizing and best practices - Capacity on Demand |
| Topic 3: XIV Hardware Architecture | 25% | - System components and modules - Reliability and serviceability - Gen1 / Gen2 / Gen3 differences |
| Topic 4: Interoperability & Migration | 10% | - Virtualization integration - Host connectivity - Data migration methods |
| Topic 5: XIV Software & Features | 30% | - Thin provisioning - Remote mirroring (sync/async) - Snapshots and consistency groups - GUI and CLI management |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
1. How many active module interconnects are there between data modules on an XIV system Model A14?
A) two Ethernetconnections
B) four Ethernet connections
C) one Ethernetconnection
D) sixEthernetconnections
2. A customer has requested a highly available solution with fully concurrent fail over for a VMware farm of hosts. The customer also has Oracle databases that demand very low latency (0.5 ms and lower). What would be the best solution for this environment?
A) SVC with XIV and IBM FlashSystems (RamSan), plus enable Easy Tier
B) Two XIV systems setup in asynchronous mirror with SSDs and VMware SRM
C) Two XIV systems setup in synchronous mirrorwith SSD5 and VMware SRM
D) SVC stretch clusterwith XIV and IBM FlashSystems (RamSan), plus enable EasyTier
3. On an XIV system, what is the minimum hardware configuration when the Capacityl on Demand feature is used?
A) 12 modules
B) 6 modules
C) 9 modules
D) 15 modules
4. Following a proof of concept, it has been determined that an eleven module XIV system containing 2 TB drives is the minimum configuration suitable for the workload, which consists primarily of random writes. The customer is concerned about the upfront costs so the sales representative has suggested a six module system with 3 TB drives, which would also provide ample capacity for the application.
Given the customer's concerns, which configuration should the technical specialist recommend to best meet the customer's requirements?
A) an eleven module XIV with 2 TB drives and eight CoD activations
B) an eleven module XIV with 3 TB drives and six CoD activations
C) a nine module XIV with 2 TB drives and six CoD activations
D) a six module XIV with 3 TB drives and SSDs
5. A customer wants to know how much capacity has been consumed against the Capacity on Demand entitlement on their XIV system.
How would the technical specialist determine the capacity consumed?
A) looking at the soft consumed capacity in the bottom left corner of the XIV GUI
B) running the XCLI command vol_list and summing the Used Capacity column
C) running the XCLI command system_capacity_list
D) running the XCLI command cod_list
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: D |
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