passguide Hitachi HH0-280

Hitachi Exams HH0-280

HDS Implemetation Specialist – Storage Management

Q&A V3.20

A customer wants to use Hitachi Dynamic Provisioning (HDP) on a USP V.
Which two statements are true? (Choose two.)

A. DP-Volumes default assignment will be to Pool 0.
B. DP-Volumes require a manual assignment to a Pool.
C. Any Emulation Type except mainframe is supported for DP-Volumes.
D. The Emulation Type of a DP-Volume is the same as the associated Pool Emulation.

Answer: B, D

Hitachi Dynamic Provisioning (HDP) on the USP V requires the setting of thresholds for the POOL and Dynamic Provisioning (DP)-Volumes
Which two statements are true? (Choose two.)

A. The fixed threshold of the Pool can be modified.
B. The DP-Volume threshold can be set between 5% to 100%.
C. The DP-Volume threshold does not refer to the DP-Volume usage.
D. All DP alerts can be completed by the customer without usage of the SVP.

Answer: C, D

Dynamic Provisioning (DP) on the USP V allocates blocks for the DP-Volumes in the associated Pool. Pool 0 has 20 LDEVs (100 GB each) and 10 DP-Volumes (1 TB each) connected to it. Hitting the Pool threshold will generate an alert and an action is necessary to avoid Pool overflow.
Which two actions should be performed? (Choose two.)

A. Extend the Pool capacity by adding additional LDEVs.
B. Delete DP-Volumes from Pool 0 (disruptive for the application).
C. Uninterruptedly move one or more DP-Volumes from POOL 0 to another Pool.
D. Format from the attached Operating System (OS) to free up space in the Pool 0.

Answer: A, B

Which two statements about the Hitachi Dynamic Link Manager (HDLM) auto failback feature are true? (Choose two.)

A. Intermittent error monitoring is specifiable only when auto failback is enabled.
B. When you enable auto failback, intermittent error monitoring is enabled by default.
C. To change the default intermittent error monitoring settings, auto failback must be set to “off”.
D. To prevent an intermittent error from reducing I/O performance, it is recommend that you monitor intermittent errors when auto failback is enabled.

Answer: A, D

The customer is using an Adaptable Modular Storage (AMS) system with clustered servers in an active/passive relationship.
Which Hitachi Dynamic Link Manager (HDLM) function can you use to ensure that the status of inactive paths on both passive and active nodes is monitored regularly?

A. Switch on Auto failback.
B. Set the reservation level to 2.
C. Switch on Path Health Check.
D. Setup intermittent Error Monitoring.

Answer: C

During a storage performance assessment, you have determined that a server with Hitachi Dynamic Link Manager (HDLM) version 5.8 installed is generating a high amount of random I/O on the storage system. The application running on this server is not an application which is generating random I/O; however, the customer is running a file server application.
What must be verified on this server?

A. Verify that the HDLM Round Robin is enabled.
B. Verify that the HDLM Load Balancing is enabled.
C. Verify that the HDLM Extended Round Robin is enabled.
D. Verify that the HDLM I/O split suppression mode is disabled.

Answer: C

Which two Hitachi Dynamic Link Manager (HDLM) environments will benefit from the Extended Round Robin feature? (Choose two.)

A. a Microsoft Windows Server 2003 x86 (SP2 installed) connected with single path to an AMS storage system
B. a Microsoft Windows Server 2003 x86 (SP2 installed) connected with dual path to a USP V storage system
C. a Microsoft Windows Server 2003 x86 (SP2 installed) connected with dual path to an EMC DMX storage system
D. a Microsoft Windows Server 2003 x86 (SP2 installed) connected with a path to each controller on an AMS storage system

Answer: B, C

What are two requirements when registering Hitachi Dynamic Link Manager (HDLM) hosts for management by Hitachi Global Link Availability Manager (HGLAM)? (Choose two.)

A. Select the agent service port.
B. Select the remote port number.
C. Add the IP address or host name of the host to be managed.
D. Enter the user name and password of the host to be managed.

Answer: B, C

A customer has installed Hitachi Global Link Availability Manager (HGLAM) to manage the Hitachi Dynamic Link Manager (HDLM) environment.
Which three statements are true? (Choose three.)

A. A host must be registered to HGLAM.
B. Each host must be registered individually using the HGLAM GUI.
C. HDLM software must be installed on all servers managed by HGLAM.
D. Auto failback must be disabled prior to starting the registration process.
E. HDLM software versions below 5.8 require Device Manager software agent.

Answer: A, C, E

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