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IBM C4090-456 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Data Protection and Replication15%- Snapshot and backup features
  • 1. Backup integration concepts
    • 2. Snapshot creation and management
      - Replication strategies
      • 1. Synchronous and asynchronous replication
        • 2. Disaster recovery planning
          Topic 2: Troubleshooting and Maintenance15%- System maintenance
          • 1. Firmware and software updates
            • 2. Preventive maintenance tasks
              - Problem determination
              • 1. Common failure scenarios
                • 2. Log analysis and diagnostics
                  Topic 3: XIV Architecture and Concepts25%- Hardware components and system layout
                  • 1. Modules, grids, and connectivity
                    • 2. Capacity scaling principles
                      - XIV system architecture overview
                      • 1. Grid architecture and distributed design
                        • 2. Storage pooling and virtualization concepts
                          Topic 4: Installation and Configuration20%- Initial setup and deployment
                          • 1. System initialization procedures
                            • 2. Network configuration and zoning
                              - Storage provisioning
                              • 1. Host connectivity configuration
                                • 2. Volume creation and mapping
                                  Topic 5: Operations and Administration25%- Day-to-day management
                                  • 1. Monitoring system health
                                    • 2. Performance tuning basics
                                      - User and access management
                                      • 1. Administrative tasks
                                        • 2. Role-based access control

                                          IBM XIV Storage System Technical Solutions V4 Sample Questions:

                                          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. running the XCLI command vol_list and summing the Used Capacity column
                                          • B. running the XCLI command system_capacity_list
                                          • C. looking at the soft consumed capacity in the bottom left corner of the XIV GUI
                                          • D. running the XCLI command cod_list
                                          Reveal Solution  Discussion  0

                                          Correct Answer: D  🗳️

                                          On an XIV system, what factor must be considered when using snapshots?

                                          • A. 17 GB of hard capacity is immediately consumed at creation per snapshot
                                          • B. restoring a snapshot invalidates all earlier snapshots
                                          • C. snapshots must be unlocked before restore
                                          • D. snapshots cannot be moved independently to another storage pool
                                          Reveal Solution  Discussion  0

                                          Correct Answer: D  🗳️

                                          A storage administrator wishes to migrate a legacy storage controller's volumes to a SAN Volume Controller. The controller can provide SAS or iSCSI host connections only. An XIV is virtualized by the SVC and has been upgraded from six modules to nine to assist with the migration project. The additional storage is yet to be presented to the SVC.
                                          What would be the best method to transfer the data?

                                          • A. Presentvolumestothe SVC using SAS. Mirrorthe volumes onto the newly-presented XIV storage.
                                          • B. Present volumes to the XIV using iSCSl. Migrate the volumes to XIV using the availablecapacitythen to the SVC.
                                          • C. Present volumes to the SVC using iSCSl. Mirror the volumes onto the newly-presented XIV storage.
                                          • D. Present volumes to the XIV using SAS. Migrate the volumes to XIV using the availablecapacitythen to the SV
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B  🗳️

                                          Compared to other IBM storage offerings, which of the following is unique functionality on an XIV system?

                                          • A. ability to take snapshots
                                          • B. reduced single points of failure
                                          • C. prevents hotspots
                                          • D. IP based replication
                                          Reveal Solution  Discussion  0

                                          Correct Answer: C  🗳️

                                          What minimum information is required when creating a volume on an XIV system?

                                          • A. capacity, RAID level, disk group
                                          • B. Quality of Service, consistency group, volume name
                                          • C. capacity, storage pool, volume name
                                          • D. drive type, disktier, capacity
                                          Reveal Solution  Discussion  0

                                          Correct Answer: C  🗳️

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