Free Hitachi HAT-680 Exam Dumps Questions & Answers

Using Hitachi Device Manager, and after launching the Element Manager, you want to specify a logical device (LDEV) as a Command Device on a VSP storage system. Which two conditions must the LDEV satisfy? (Choose two.)

• A.  The emulation type must be OPEN-V.
• B.  The logical device must not be reserved for ShadowImage in-system replication.
• C.  The LDEV must be at least 128 MB in size.
• D.  The logical device must not be on a RAID1 parity group.

When you perform an "Add Subsystem" operation within Hitachi Device Manager (HDvM), you receive an error message. Which troubleshooting step would you perform first?

• A.  Restart HDvM.
• B.  Check license status.
• C.  Open a case with HDS Support.
• D.  Check the storage system for any inconsistent condition.

You want to monitor the storage capacity used by an application. Which feature of Hitachi Device Manager would you use to achieve this?

• A.  device groups
• B.  host groups
• C.  application groups
• D.  logical groups

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

A VSP customer wants to optimize their multi-pathing environment and improve I/O performance. Which two Hitachi Dynamic Link Manager (HDLM) features will assist this customer? (Choose two.)

• A.  The HDLM server monitors the client hosts' multi-pathing agents and redistributes I/Os so no single path becomes overworked or under-utilized.
• B.  HDLM provides multiple load-balancing algorithms to balance I/Os across available paths.
• C.  HDLM spreads I/O workloads across available paths to ensure that no single path becomes overworked or under-utilized.
• D.  HDLM analyzes I/O profiles and determines the most appropriate buffering policy.