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

HAT-420 real exams

Exam Code: HAT-420

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

Updated: Aug 28, 2026

Q & A: 110 Questions and Answers

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

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

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

                                  Question 1

                                  Which command would you use to map an LU from a Hitachi Unified Storage system?

                                  A. ausgmap
                                  B. auhgmap
                                  C. aumaplu
                                  D. aulumap


                                  Question 2

                                  Which two statements relating to the online firmware upgrade are true for Hitachi Unified Storage systems?
                                  (Choose two.)

                                  A. Online firmware upgrades can only be done using Storage Navigator Modular 2.
                                  B. Only the HUS model 150 storage system supports online firmware upgrades.
                                  C. All hosts must have multiple paths to the HUS when performing online firmware upgrades.
                                  D. Online firmware upgrades should not be scheduled for periods of high CPU workload.


                                  Question 3

                                  What is the purpose of the System Assurance documentation?

                                  A. to guarantee that Hitachi Data Systems equipment is insured during transportation
                                  B. to ensure accurate and complete record of pre-installation data
                                  C. to inform a channel partner that equipment is available for shipment
                                  D. to validate configuration changes for customers with a premium service contract


                                  Question 4

                                  A customer wants to migrate Hitachi AMS2100 data to a newly acquired Hitachi Unified Storage (HUS)
                                  system. Which statement about the migration is correct?

                                  A. TrueCopy between the AMS2100 and the HUS can be used.
                                  B. TrueCopy between the AMS2100 and the HUS cannot be used.
                                  C. TrueCopy Extended Distance can be used for a non-disruptive migration between the AMS2100 and
                                  the HUS.
                                  D. Modular Volume Migration between the AMS2100 and the HUS can be used.


                                  Question 5

                                  Which two Program Products reserve cache in a Hitachi Unified Storage system when they are installed,
                                  even if disabled? (Choose two.)

                                  A. TrueCopy
                                  B. Cache Partioning Manager
                                  C. TrueCopy Extended
                                  D. ShadowImage


                                  Solutions:

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

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