HH0-220 Online Practice Questions and Answers

A customer wants to create a multi-path environment for a specific Redhat Linux application on a Hitachi Unified Storage system. They have created Host Groups on all of the available ports and mapped the logical units accordingly. Which two multi- pathing options can be used for active/active connectivity? (Choose two.)

A. Device Mapper

B. Multipath I/O (MPIO)

C. Hitachi Dynamic Link Manager

D. Multiplexed I/O (MPxIO)

A Hitachi Unified Storage system is connected to a Solaris server. If you want to optimize performance for the host I/Os, how do you determine the appropriate queue depth value?

A. Set queue depth to 1.

B. Use the operating system default value.

C. The value is set according to the results of the initial SCSI inquiry.

D. Using the Host installation guide for Fibre Channel.

How should the Hitachi Unified Storage systems dual power supplies be connected?

A. by FS6 circuits breakers

B. only one should be connected, the other being standby

C. by adjacent sockets on a single power distribution unit

D. by two independent and appropriately rated power distribution units

Which two expansion trays are supported on Hitachi Unified Storage (HUS) model 110? (Choose two.)

A. 2U tray to hold up to 24 SFF drives

B. 2U tray to hold up to 12 LFF drives

C. 4U tray to hold up to 48 LFF drives

D. 4U tray to hold up to 38 SFF drives

Which module is unique to the Hitachi Unified Storage (HUS) model 150?

A. Cache Module to expand memory

B. I/O Module for host interface options

C. Battery Module to increase backup duration

D. SSD Module to support cache backup

Which three actions should be performed when replacing parts on a Hitachi Unified Storage system? (Choose three.)

A. Use a antistatic wrist wrap connected to the chassis.

B. Perform a firmware upgrade to the latest MGA level.

C. Collect and save a simple trace.

D. Open a Clarify case with the HDS support center.

E. Verify the system status using Web tool.

What must be installed on an AIX server prior to Hitachi Dynamic Link Manager Installation?

A. MPXIO

B. HACMP

C. HTnM agent

D. Hitachi ODM

What are two advantages of the Memory Management Layer (MML) in Hitachi Unified Storage systems? (Choose two.)

A. Metada for MML-supported functions is copied to cache only when needed for processing.

B. LU quick and normal format speeds are increased.

C. The DM-LU size is automatically adjusted depending upon the number of copy pairs.

D. Copy-on-Write Snapshot and TrueCopy Extended Distance no longer require a data pool for differential data.

A customer has deployed TrueCopy Extended Distance on their Hitachi Unified Storage systems. They would like to be alerted when their RPO exceeds the business requirement. Which product would you recommend?

A. Hitachi Replication Manager

B. Hitachi Command Director

C. Business Continuity Manager

D. Hitachi Universal Replicator

A storage administrator would like to connect 10 hosts into the same FC ports of a Hitachi Unified Storage system. They are concerned that one host with high I/Os will impact the other hosts on the same FC ports. Which HBA parameter should be set to limit the number of outstanding I/Os on each host?

A. queue depth

B. command length

C. command depth

D. queue length