Hitachi HAT-420 : Hitachi Data Systems Certified Professional - Modular storage installation

  • Exam Code: HAT-420
  • Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
  • Updated: Oct 07, 2026
  • Q & A: 110 Questions and Answers

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Hitachi HAT-420 Exam Syllabus Topics:

SectionObjectives
Topic 1: Installation and Configuration- Initial system setup
  • 1. Pre-installation requirements
    • 2. Physical installation procedures
      - System configuration
      • 1. Storage pool configuration
        • 2. LUN provisioning
          Topic 2: Maintenance and Troubleshooting- Problem resolution
          • 1. Common installation issues
            • 2. Hardware replacement procedures
              - Monitoring and diagnostics
              • 1. Performance monitoring tools
                • 2. Event and log analysis
                  Topic 3: Storage Networking- SAN connectivity
                  • 1. Fibre Channel concepts
                    • 2. Zoning and masking
                      - Host integration
                      • 1. Host attachment procedures
                        • 2. Multipathing configuration
                          Topic 4: Hitachi Modular Storage Architecture- System models and hardware overview
                          • 1. Hardware connectivity options
                            • 2. Modular storage product families
                              - Storage system components overview
                              • 1. Disk and RAID configurations
                                • 2. Controller and cache architecture

                                  Hitachi Data Systems Certified Professional - Modular storage installation Sample Questions:

                                  Question #1

                                  On which level can Host Group Security be enabled on a Hitachi Unified Storage system?

                                  • A. the Host Group level
                                  • B. the individual LU level
                                  • C. the FC port level
                                  • D. the iSCSI port level
                                  Reveal Solution  Discussion  0

                                  Correct Answer: C  🗳️

                                  Question #2

                                  A customer has multiple cache partitions defined on a Hitachi Unified Storage system. They would like to
                                  change one of the partitions characteristics. Which three settings can be modified? (Choose three.)

                                  • A. owning controller
                                  • B. cache size
                                  • C. segment size
                                  • D. stripe size
                                  • E. partition number
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A,B,C  🗳️

                                  Question #3

                                  Which two expansion trays are supported on Hitachi Unified Storage (HUS) model 110? (Choose two.)

                                  • A. 4U tray to hold up to 48 LFF drives
                                  • B. 2U tray to hold up to 24 SFF drives
                                  • C. 2U tray to hold up to 12 LFF drives
                                  • D. 4U tray to hold up to 38 SFF drives
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B,C  🗳️

                                  Question #4

                                  Which two statements accurately describe the Program Product functions available on Hitachi Unified
                                  Storage (HUS) systems? (Choose two.)

                                  • A. Hitachi Dynamic Link Manager is used to control the HUS active/active controller feature.
                                  • B. LUN resizing is a basic function in SNM2 and does not require a separate license key.
                                  • C. Restricting access to a HUS Command Device is possible using Account Authentication.
                                  • D. The Tray Power Saving function does require a separate license key.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B,D  🗳️

                                  Question #5

                                  When performing an initial installation of a Hitachi Unified Storage system, which management tool must
                                  be used to set the date and time?

                                  • A. Web Tool
                                  • B. Hitachi Command Suite
                                  • C. Storage Navigator Modular 2
                                  • D. RAID Manager/CCI
                                  Reveal Solution  Discussion  0

                                  Correct Answer: C  🗳️

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