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Hitachi Data Systems Certified Professional - Modular storage installation Sample Questions:

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

A) Add a LU to two different Host Groups behind two different ports.
B) Add multiple WWNs to one Host Group.
C) Create Host Groups with different host connection modes on the same FC port.
D) Create a Host Group with two different host connection modes.
E) Add the same WWN to multiple Host Groups on the same FC port.

2. What are two characteristics of the Hitachi Unified Storage (HUS) controllers? (Choose two.)

A) The FC front-end ports automatically sense 1, 2, 4 and 8 Gbps.
B) The FC front-end ports offer improved sequential I/O performance.
C) Mixing FC and iSCSI front-end ports is allowed on all models.
D) HUS models 110 and 130 are active/passive.

3. 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) The DM-LU size is automatically adjusted depending upon the number of copy pairs.
C) Copy-on-Write Snapshot and TrueCopy Extended Distance no longer require a data pool for
differential data.
D) LU quick and normal format speeds are increased.

4. What are two characteristics of the active/active architecture on the Hitachi Unified Storage (HUS)
systems? (Choose two.)

A) Firmware upgrades are non-disruptive even with one path from a host.
B) Multiple ports from the same controller are required to support the active/active feature.
C) HDLM needs to be used to benefit from the active/active feature.
D) Controller workload balancing is managed by the HUS system.

5. 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) no tracks preloading on the system
B) blocks held permanent in Read Cache
C) tracks preloaded to cache
D) efficient cache usage on the storage system

Solutions: