IBM IBM XIV Storage System Technical Solutions V4 - C4090-456 Valid Dumps

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IBM C4090-456 Exam Syllabus Topics:

SectionObjectives
XIV Architecture and Concepts- XIV system architecture
  • 1. Grid architecture and scalability
    • 2. Data distribution mechanisms
      - Hardware components
      • 1. System redundancy design
        • 2. Storage modules and interconnects
          Performance and Advanced Features- Advanced storage features
          • 1. Data replication concepts
            • 2. Thin provisioning
              - Performance optimization
              • 1. Workload balancing
                • 2. Cache optimization
                  Installation and Configuration- Initial system setup
                  • 1. Network configuration
                    • 2. System initialization procedures
                      - Host connectivity
                      • 1. Fibre Channel attachment
                        • 2. iSCSI configuration
                          Administration and Management- Storage provisioning
                          • 1. Volumes and pools management
                            • 2. Snapshot configuration
                              - System monitoring
                              • 1. Event and alert management
                                • 2. Performance monitoring tools
                                  Maintenance and Troubleshooting- Problem determination
                                  • 1. Hardware diagnostics
                                    • 2. Log analysis
                                      - System maintenance
                                      • 1. Firmware upgrades
                                        • 2. Component replacement procedures

                                          IBM XIV Storage System Technical Solutions V4 Sample Questions:

                                          1. 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) a nine module XIV with 2 TB drives and six CoD activations
                                          B) an eleven module XIV with 3 TB drives and six CoD activations
                                          C) a six module XIV with 3 TB drives and SSDs
                                          D) an eleven module XIV with 2 TB drives and eight CoD activations


                                          2. 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) 1per defined target
                                          D) 2perdefinedtarget


                                          3. 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) route Fibre Channel across IP
                                          C) connect interlace modules using a crossover cable
                                          D) route InfiniBand across Ethernet


                                          4. An XIV snapshot is taken daily from the same volume and kept for one week.
                                          If it is Friday and the system is restored from a snapshot taken on Tuesday, why is it possible to return to a snapshot taken on Thursday?

                                          A) because there is sufficient space in the snapshot reserve
                                          B) because the deletion priorityis set correctly
                                          C) because there are no dependencies between subsequent snapshots
                                          D) because snapshots were all converted to full copy


                                          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) running the XCLI command cod_list
                                          B) looking at the soft consumed capacity in the bottom left corner of the XIV GUI
                                          C) running the XCLI command vol_list and summing the Used Capacity column
                                          D) running the XCLI command system_capacity_list


                                          Solutions:

                                          Question # 1
                                          Answer: D
                                          Question # 2
                                          Answer: C
                                          Question # 3
                                          Answer: A
                                          Question # 4
                                          Answer: C
                                          Question # 5
                                          Answer: A

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