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Hitachi HAT-680 Exam Syllabus Topics:

Hitachi HITACHI DATA SYSTEMS QUALIFIED PROFESSIONAL - STORAGE ADMINISTRATION Sample Questions:

1. You are using Hitachi Storage Navigator to create a LUN on a VSP storage system. After completing the operation you observe that the LUNs you created are not listed. Which action would enable Hitachi Device Manager (HDvM) to see these LUNs?

A) Perform a host refresh using the ResetHost command.
B) Log back into Storage Navigator and re-create the LUNs.
C) Refresh the storage system.
D) Execute the HDvM CLI command SetLunRecovery.

2. A storage manager needs to add a new server to the Hitachi Device Manager (HDvM) database. As an alternative to running a host scan, which two actions are available to discover and identify the new server? (Choose two.)

A) Run the Import Hosts utility.
B) Execute the AddNewHost CLI command.
C) Install HDvM Agent on the host.
D) Use the Host Data Collector.

3. Which two statements regarding the Hitachi Dynamic Link Manager Round Robin algorithms are true? (Choose two.)

A) The Round Robin algorithm distributes I/Os by alternating requests across all available data paths.
B) The Extended Round Robin algorithm distributes I/Os to paths depending on whether the I/O involves sequential or random access.
C) The Round Robin algorithm distributes I/Os by alternating requests across two data paths.
D) The Extended Round Robin algorithm distributes sequential I/Os to a set of paths and random I/Os to another set of paths.

4. You are creating new users within Hitachi Device Manager and must ensure that the appropriate permissions are applied. What are two valid user management permissions? (Choose two.)

A) View
B) Create
C) Edit
D) Peer

5. A user reports that a host running Hitachi Dynamic Link Manager (HDLM) has lost a number of paths to the LUNs it is using. The host still has access to all the LUNs. When troubleshooting, what should you do?

A) Set all paths offline and then online again.
B) Check the output of the "dlnkmgr view" command in HDLM.
C) Reboot the host.
D) Execute the "dlnkmgr online" command in HDLM.

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