Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
Certification Provider: Hitachi
Corresponding Certification: Hitachi Data Systems Certification
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Instant Download Hitachi : HAT-420
Check Updated on: Sep 08, 2026
No. of Questions: 110 Questions & Answers with Exam Engine
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Hitachi HAT-420 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Storage Networking | - Host integration
|
| Installation and Configuration | - System configuration
|
| Maintenance and Troubleshooting | - Monitoring and diagnostics
|
| Hitachi Modular Storage Architecture | - System models and hardware overview
|
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. The rescan function in VMware is not working, so both servers need to be rebooted.
- B. ESX 4.x servers cannot recognize volumes that are 2TB or larger.
- C. The FC switch ports need to be disabled/enabled to force the HBAs to re-login to the fabric.
- D. This a newer storage array with an older version of ESX so the HBA drivers need to be updated.
Why will a server in an environment using persistent binding maintain a constant view of its target IDs
when rebooted?
- A. Because persistent binding will connect to the LU Manager and provide the target IDs.
- B. Because persistent binding retains the target ID information.
- C. Because the driver software remaps the SCSI target ID to the new WWNNs automatically.
- D. Because the LU Management Service will manage the target IDs.
A manufacturing company wants to centrally manage all their multipath software using Hitachi Global Link
Manager (HGLM). Which two types of multipath software are supported? (Choose two.)
- A. HDLM
- B. SDD
- C. PowerPath
- D. VxDMP
What allows firmware to be updated non-disruptively on the Hitachi Unified Storage systems?
- A. Host connectivity to both controllers established using multi-pathing software.
- B. While one controller is rebooting, the other handles all host operations.
- C. Firmware updates only affect the first five drives and no controller reboot is required.
- D. Firmware updates are performed in less than the host I/O timeout value.
Which two alerts does Hitachi Dynamic Provisioning issue when DP-Pool capacity usage thresholds are
exceeded on a Hitachi Unified Storage system? (Choose two.)
- A. Early Alert
- B. Over Provisioning Alert
- C. Exceeding Alert
- D. Depletion Alert
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