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

  • Exam Code: HAT-420
  • Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
  • Updated: Jul 28, 2026     Q & A: 110 Questions and Answers

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Hitachi HAT-420 Exam Syllabus Topics:

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

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

                                  1. Which two operations can be performed using Storage Navigator Modular 2 on a Hitachi Unified Storage
                                  system? (Choose two.)

                                  A) Run the Initial Setup Wizard.
                                  B) Display Disk Management properties.
                                  C) Set persistent binding.
                                  D) Create Logical Units.


                                  2. A customer has received a Hitachi Dynamic Provisioning Early Alert warning by e-mail indicating that the
                                  default threshold has been reached on a Hitachi Unified Storage (HUS) system. What does this warning
                                  indicate?

                                  A) DP-Vols have used over 40% of the DP pool capacity.
                                  B) The HUS has projected that the DP pool will be used up within 24 hours.
                                  C) The HUS has automatically added another free RAID Group to the DP pool.
                                  D) DP-Vols are provisioned over 200% of the DP pool capacity.


                                  3. What is Hitachi Data System's recommended practice for zoning?

                                  A) port-based zoning
                                  B) zoning is optional
                                  C) single HBA zoning (one HBA per zone)
                                  D) single operation system zoning (all HBAs from one OS in a zone)


                                  4. 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) Release the first LU from a unified LUN.
                                  B) Grow a LUN by adding free space from any RAID Group.
                                  C) Shrink a LUN by releasing space back to the RAID Group.
                                  D) Add additional LUs to an existing LUN.


                                  5. A customer uses TrueCopy and ShadowImage with Hitachi AMS2000 modular arrays. They are
                                  interested in upgrading those systems to Hitachi Unified Storage (HUS). Which two benefits will the
                                  customer have with HUS systems in this environment? (Choose two.)

                                  A) TrueCopy and ShadowImage will no longer require a DM-LU.
                                  B) TrueCopy and ShadowImage will require less cache in the systems.
                                  C) The size of the DM-LU used for ShadowImage and TrueCopy will be reduced by about 50%.
                                  D) The granularity of differential data being copied to the replication target has improved.


                                  Solutions:

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

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