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

HAT-420 real exams

Exam Code: HAT-420

Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation

Updated: Oct 12, 2026

Q & A: 110 Questions and Answers

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Hitachi HAT-420 Exam Syllabus Topics:

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

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

                                  Question #1

                                  You are using the Change Volume Capacity function of Storage Navigator Modular 2 (SNM2) to manage
                                  a Hitachi Unified Storage (HUS) system. Hitachi Dynamic Provisioning is not used. Which two operations
                                  can be performed? (Choose two.)

                                  • A. Grow a LUN by adding free space from any RAID Group.
                                  • B. Shrink a LUN by releasing space back to the RAID Group.
                                  • C. Add additional LUs to an existing LUN.
                                  • D. Release the first LU from a unified LUN.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B,C  🗳️

                                  Question #2

                                  Which two self-service resources would you use if you require installation assistance? (Choose two.)

                                  • A. Hitachi Data Systems Support Portal
                                  • B. Hitachi Data Systems InfoSearch database
                                  • C. Hitachi Data Systems product documentation
                                  • D. Hitachi Data Systems Installation Service Manager
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A,C  🗳️

                                  Question #3

                                  What are three characteristics of the Hitachi Unified Storage systems active/active controller design?
                                  (Choose three.)

                                  • A. SNM2 GUI is used to turn on active/active controller processing.
                                  • B. Workload is automatically balanced between controllers.
                                  • C. Non disruptive firmware upgrade is possible even if a host is connected by only one path.
                                  • D. When creating a LUN the default controller must be selected.
                                  • E. The processor of Ctlr0 can access the Fibre Channel (FC) ports of Ctrl1.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B,C,E  🗳️

                                  Question #4

                                  You plan to use Storage Navigator Modular 2 (SNM2) to perform a non-disruptive upgrade of the firmware
                                  on a Hitachi Unified Storage (HUS) system. What are two requirements for this process? (Choose two.)

                                  • A. You must have a working LAN connection between the SNM2 server and the HUS.
                                  • B. All hosts must be connected to the HUS using HDLM or similar multi-pathing software.
                                  • C. There must be no hardware faults or missing components on the HUS.
                                  • D. The HUS must have a Device Manager Agent installed and running.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A,C  🗳️

                                  Question #5

                                  Which statement regarding the Hitachi Unified Storage systems Web tool is correct?

                                  • A. Web access is a part of the system firmware.
                                  • B. The Web tool is installed and enabled automatically when installing SNM2.
                                  • C. Web access must be enabled separately in SNM2 for each storage system after activating the license
                                    key.
                                  • D. The Web tool requires a dedicated license key to enable access.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

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