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IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Interoperability & Migration | 10% | - Data migration methods - Virtualization integration - Host connectivity |
| XIV Software & Features | 30% | - GUI and CLI management - Remote mirroring (sync/async) - Thin provisioning - Snapshots and consistency groups |
| Capacity & Performance Design | 15% | - Workload sizing and best practices - Performance optimization - Capacity on Demand |
| XIV Storage System Overview | 20% | - Architecture and business value - Competitive advantages |
| XIV Hardware Architecture | 25% | - Reliability and serviceability - System components and modules - Gen1 / Gen2 / Gen3 differences |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
Which of the following statements is true of the XIV architecture?
- A. For each mirrored 1 MB partition, one copy is always on an interface module.
- B. Storage Pools are used to group volumes with similar performance requirements.
- C. In a fifteen module XIV, fifteen physical disks are allocated as hot spares.
- D. Every logical volume is spread over every physical drive.
Correct Answer: D 🗳️
An XIV administrator wants to migrate a legacy DS4700 to XIV. The DS4700 is mirrored across a low-bandwidth link to a second DS4700 at a second site. The XIV volumes will need to be mirrored to a second XIV using asynchronous replication.
What feature will help perform this task?
- A. asynchronous migration
- B. volume mirroring
- C. cache-disabled volumes
- D. offline initialization
Correct Answer: D 🗳️
How much space will an XIV snapshot allocate from the pool's snapshot reserve when its created?
- A. 0 GB per snapshot
- B. 17GB pervolume
- C. 17GBperpool
- D. 17GBpersnapshot
Correct Answer: A 🗳️
During data migration from a legacy storage system to the XIV system, there are eight hosts accessing eight separate volumes.
What is the maximum number of volume migrations allowed in the background while the eight hosts are actively running?
- A. 4perdefinedtarget
- B. 8perdefinedtarget
- C. 2perdefinedtarget
- D. 1per defined target
Correct Answer: D 🗳️
On an XIV system, how can a thin provisioned volume be changed to a regular provisioned volume?
- A. in the GUI, right mouse click on the volume and move itto a regular pool
- B. in the XCLI, use the command pool_change_config on the pool containing the volume
- C. in the XCLI, use the command vol_resize on the volume
- D. in the GUI, right mouse click on the volume and select"regular provision"
Correct Answer: A 🗳️
