HH0-220 Online Practice Questions and Answers

A customer has identified a performance bottleneck with Online Transaction Processing (OLTP) production host LUNs. The performance improvement plan includes a change to the Hitachi Dynamic Link Manager load balancing algorithm which is currently set to Round Robin. Which setting would you recommend?

A. Least I/Os

B. Least blocks

C. Extended Round Robin

D. Extended Least blocks

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 customer has multiple cache partitions defined on a Hitachi Unified Storage system. They would like to change one of the partitions characteristics. Which three settings can be modified? (Choose three.)

A. stripe size

B. cache size

C. segment size

D. partition number

E. owning controller

Your Hitachi Unified Storage (HUS) customer uses the latest release of Hitachi Command Suite (HCS) products, Device Manager and Tuning Manager. Which tab in the HCS main view is available to your customer for viewing HUS system performance data?

A. Metrics

B. Monitor

C. Analytics

D. Performance

Which three operations are allowed after enabling security on a Hitachi Unified Storage system Fibre Channel (FC) port? (Choose three.)

A. Add multiple WWNs to one Host Group.

B. Add the same WWN to multiple Host Groups on the same FC port.

C. Create a Host Group with two different host connection modes.

D. Add a LU to two different Host Groups behind two different ports.

E. Create Host Groups with different host connection modes on the same FC port.

You have set Extended Round Robin on a server with intensive sequential I/O profile. Which two benefits result from implementing this algorithm? (Choose two.)

A. tracks preloaded to cache

B. blocks held permanent in Read Cache

C. no tracks preloading on the system

D. efficient cache usage on the storage system

You have replaced a controller on a Hitachi Unified Storage system. Which two methods should be used to confirm that the replacement completed successfully? (Choose two.)

A. Check the SNMP trap logs.

B. Check the Alerts and Events window in SNM2.

C. Check the Alerts and Events window in HCS.

D. Check the status using the Web tool in Normal Mode.

What does the root account on a Hitachi Unified Storage system support by default?

A. Storage management - view and modify

B. Security management - view and modify

C. Account and Storage management - view and modify

D. Account management - view and modify

A customer will be implementing a Hitachi Unified Storage File Module in a switch- less two-node cluster. What needs to be used for the cluster interconnect?

A. Two10Gbps Ethernet connections with LC connectors

B. Two10Gbps Ethernet connections with XFP connectors

C. Two1Gbps Ethernet connections with RJ-45 connectors

D. Two8Gbps FC connections with LC connectors

What describes the characteristics of external backup solutions supported by the Hitachi Unified Storage System (HUS) File Module option?

A. The HUS File Module uses file system snapshot technology.

B. The HUS File Module only backs up to direct attached tape drives.

C. The HUS File Module relies on the User Datagram Protocol (UDP) with CRC enabled.

D. The HUS File Module uses Network Data Management Protocol (NDMP).