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

  • Exam Code: HAT-420
  • Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
  • Updated: Sep 09, 2026
  • Q & A: 110 Questions and Answers

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

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Hitachi HAT-420 Exam Syllabus Topics:

SectionObjectives
Hardware Installation- Physical deployment
  • 1. Expansion unit installation
  • 2. Controller installation
  • 3. Drive installation
Data Protection and Performance- Availability and optimization
  • 1. Performance optimization
  • 2. Redundancy and failover
  • 3. Storage best practices
Modular Storage Architecture- Storage system components
  • 1. Controller architecture
  • 2. Cache and memory concepts
  • 3. Disk enclosures and connectivity
Management and Administration- System management
  • 1. Management utilities
  • 2. Monitoring and maintenance
  • 3. Firmware and licensing
Installation Planning- Site preparation
  • 1. Power and environmental requirements
  • 2. Hardware verification
  • 3. Rack and cabling preparation
Troubleshooting- Problem diagnosis
  • 1. Connectivity troubleshooting
  • 2. Hardware fault identification
  • 3. System log analysis
Connectivity and Host Integration- Front-end connectivity
  • 1. Host mapping and zoning
  • 2. Fibre Channel configuration
  • 3. iSCSI and Ethernet connectivity
Storage Configuration- Logical configuration
  • 1. Logical unit provisioning
  • 2. Storage pool creation
  • 3. RAID configuration

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

Question #1

A customer wants to migrate data from existing modular storage arrays to a newly acquired Hitachi
Unified Storage system. To prepare for the storage migration, you have been asked to collect operation
data that encompasses multiple storage systems and their attached hosts. Which tool would you use?

  • A. raidcom
  • B. HiPAST
  • C. auperfmon
  • D. SE Console
Answer: D
Question #2

What allows firmware to be updated non-disruptively on the Hitachi Unified Storage systems?

  • A. Firmware updates only affect the first five drives and no controller reboot is required.
  • B. Host connectivity to both controllers established using multi-pathing software.
  • C. Firmware updates are performed in less than the host I/O timeout value.
  • D. While one controller is rebooting, the other handles all host operations.
Answer: D
Question #3

Which three access protocols are supported on the Hitachi Unified Storage File Module? (Choose three.)

  • A. NFS
  • B. iSCSI
  • C. FCOE
  • D. NCP
  • E. CIFS
Answer: A,B,E
Question #4

Which performance feature is provided by the Hitachi Unified Storage systems controller architecture?

  • A. automatic front-end port hardware load balancing
  • B. automatic cache segment resizing
  • C. automatic controller load balancing
  • D. automatic front-end storage group load balancing
Answer: C
Question #5

What are two ways to restrict access to storage through a Fabric? (Choose two.)

  • A. Useport security on the switch(es)
  • B. Use SNMP
  • C. Use zoning
  • D. Use Host Group security
Answer: C,D

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