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: Jul 22, 2026   Q&As: 110 Questions and Answers

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Hitachi HAT-420 Exam Syllabus Topics:

SectionObjectives
Topic 1: Management and Administration- System management
  • 1. Firmware and licensing
  • 2. Monitoring and maintenance
  • 3. Management utilities
Topic 2: Connectivity and Host Integration- Front-end connectivity
  • 1. Fibre Channel configuration
  • 2. iSCSI and Ethernet connectivity
  • 3. Host mapping and zoning
Topic 3: Hardware Installation- Physical deployment
  • 1. Controller installation
  • 2. Expansion unit installation
  • 3. Drive installation
Topic 4: Data Protection and Performance- Availability and optimization
  • 1. Performance optimization
  • 2. Storage best practices
  • 3. Redundancy and failover
Topic 5: Storage Configuration- Logical configuration
  • 1. Storage pool creation
  • 2. Logical unit provisioning
  • 3. RAID configuration
Topic 6: Troubleshooting- Problem diagnosis
  • 1. System log analysis
  • 2. Connectivity troubleshooting
  • 3. Hardware fault identification
Topic 7: Modular Storage Architecture- Storage system components
  • 1. Cache and memory concepts
  • 2. Controller architecture
  • 3. Disk enclosures and connectivity
Topic 8: Installation Planning- Site preparation
  • 1. Rack and cabling preparation
  • 2. Power and environmental requirements
  • 3. Hardware verification

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

1. Which two operations can be performed with the Web utility on a Hitachi Unified Storage system?
(Choose two.)

A) Take a simple trace.
B) Perform an offline microcode update.
C) Perform an online microcode update.
D) Install license keys.


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


3. 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) partition number
B) stripe size
C) cache size
D) segment size
E) owning controller


4. How should the Hitachi Unified Storage systems dual power supplies be connected?

A) only one should be connected, the other being standby
B) by FS6 circuits breakers
C) by two independent and appropriately rated power distribution units
D) by adjacent sockets on a single power distribution unit


5. A customer would like to add the File Module option to their Hitachi Unified Storage (HUS) system to
provide files services. Which three types of connectivity are required from the File Module? (Choose
three.)

A) FC to Servers
B) IP to Servers
C) FC to SMU
D) IP to SMU
E) FC to HUS


Solutions:

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

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