Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
Certification Provider: Hitachi
Corresponding Certification: Hitachi Data Systems Certification
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Check Updated on: Oct 09, 2026
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Hitachi HAT-420 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Maintenance and Troubleshooting | - Problem resolution
|
| Hitachi Modular Storage Architecture | - System models and hardware overview
|
| Storage Networking | - Host integration
|
| Installation and Configuration | - System configuration
|
Hitachi Data Systems Certified Professional - Modular storage installation Sample Questions:
You have just allocated four 3TB LUNs from a Hitachi Unified Storage System to a set of ESX 4.x servers.
The VMware administrator can see volumes that are assigned to the servers from an older storage array,
but not the volumes you have just allocated. What is the most likely cause?
- A. ESX 4.x servers cannot recognize volumes that are 2TB or larger.
- B. The rescan function in VMware is not working, so both servers need to be rebooted.
- C. This a newer storage array with an older version of ESX so the HBA drivers need to be updated.
- D. The FC switch ports need to be disabled/enabled to force the HBAs to re-login to the fabric.
Correct Answer: A 🗳️
Which module is unique to the Hitachi Unified Storage (HUS) model 150?
- A. I/O Module for host interface options
- B. Battery Module to increase backup duration
- C. Cache Module to expand memory
- D. SSD Module to support cache backup
Correct Answer: A 🗳️
Which two statements relating to the online firmware upgrade are true for Hitachi Unified Storage systems?
(Choose two.)
- A. Online firmware upgrades should not be scheduled for periods of high CPU workload.
- B. All hosts must have multiple paths to the HUS when performing online firmware upgrades.
- C. Online firmware upgrades can only be done using Storage Navigator Modular 2.
- D. Only the HUS model 150 storage system supports online firmware upgrades.
Correct Answer: A,C 🗳️
A customer will be implementing a Hitachi Unified Storage File Module in a switch-less two-node cluster.
What needs to be used for the cluster interconnect?
- A. Two10Gbps Ethernet connections with XFP connectors
- B. Two10Gbps Ethernet connections with LC connectors
- C. Two8Gbps FC connections with LC connectors
- D. Two1Gbps Ethernet connections with RJ-45 connectors
Correct Answer: A 🗳️
A customer would like to deploy a clustered File Module option on their Hitachi Unified Storage system.
What is a valid connection for the cluster interconnect?
- A. 8Gb Fibre Channel
- B. 1Gb Ethernet
- C. 10Gb Ethernet
- D. 16Gb Fibre Channel
Correct Answer: C 🗳️
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