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Hitachi HAT-680 Exam Syllabus Topics:

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

1. A storage administrator wants to provision storage from a VSP to a Windows 2008 host using Hitachi Device Manager (HDvM). Which two tasks must be completed first? (Choose two.)

A) Add the storage to a logical group in HDvM.
B) Add the storage system to HDvM.
C) Add the host to HDvM.
D) Create a host group for the host on the VSP.

2. Which two statements regarding the Hitachi Dynamic Link Manager Least I/O and Least Block algorithms are true? (Choose two.)

A) The Extended Least I/O and Extended Least Block algorithms distribute sequential I/Os to a set of paths and random I/Os to another set of paths.
B) The Least I/O and Least Block algorithms redirect the I/Os to a pair of paths determined by the algorithms.
C) The Extended Least I/O and Extended Least Block algorithms distribute I/Os to paths depending on whether the I/O involves sequential or random access.
D) The Least I/O and Least Block algorithms redirect the I/Os to a single path determined by the algorithms.

3. When configuring external storage on a VSP storage system, what happens when the Inflow Control option is set to Enable?

A) Writes will be rejected when the external volume cannot be accessed.
B) Writes will be rejected when the cache usage is above threshold 1.
C) Writes will be accepted when the external volume cannot be accessed.
D) Writes will be rejected when the cache usage is above threshold 2.

4. The storage administrator of a VSP must create an LDEV using Hitachi Device Manager. The VSP has already been selected in the Subsystems screen. Which option is available from the General Task menu to perform this task?

A) Create LDEV
B) Allocate Storage
C) Create Volumes
D) Storage Navigator

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

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