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IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Capacity & Performance Design | 15% | - Capacity on Demand - Performance optimization - Workload sizing and best practices |
| Topic 2: XIV Software & Features | 30% | - GUI and CLI management - Remote mirroring (sync/async) - Thin provisioning - Snapshots and consistency groups |
| Topic 3: XIV Storage System Overview | 20% | - Architecture and business value - Competitive advantages |
| Topic 4: XIV Hardware Architecture | 25% | - Reliability and serviceability - Gen1 / Gen2 / Gen3 differences - System components and modules |
| Topic 5: Interoperability & Migration | 10% | - Data migration methods - Virtualization integration - Host connectivity |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
1. What is a benefit of the XIV system's grid-based architecture?
A) any module can act as an interface module
B) differentcapacitydrives can be mixed within the system but not in the same module
C) each module contains processing, caching and storage
D) SSDs must be installed in the interface modules only
2. How many active module interconnects are there between data modules on an XIV system Model A14?
A) one Ethernetconnection
B) sixEthernetconnections
C) four Ethernet connections
D) two Ethernetconnections
3. What is the fastest way to see which volume is receiving the most IOPS on the XIV?
A) openXIVTopinthedefaultview
B) run XCLI command xcii volume_max_iops_list
C) opentheXIV GUI and checkthe volume view
D) open XIV GUI and select the first 12 volumes, and then next 12 and so on
4. A TELCO customer has an application that generates intensive small block random reads. The customer installed one XIV Gen3 system and is dissatisfied with this choice. They have enough performance on writes and sufficient capacity.
In order to consolidate more applications what should the technical specialist advise?
A) order an extra frame with SAS 15k drives
B) use external storage with FC drives and virtualize it under XIV
C) orderthe SSD option and use itin conjunction with Q0S
D) request IBM to change the nearline SAS drives with SAS 10k drives
5. Which statement is true regarding XIV virtualization and the advanced snapshot mechanism?
A) A volume and its corresponding snapshots can be part of several storage pools.
B) A volume's snapshot can be copied to a volume in another storage pool.
C) A volume and its corresponding snapshots can be part of several consistency groups.
D) A volume can have one snapshot only.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: B |






