Hitachi HAT-420 : Hitachi Data Systems Certified Professional - Modular storage installation

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Hitachi HAT-420 Exam Syllabus Topics:

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

1. What are the two bitmap locations used by the Memory Management Layer during LU format in Hitachi
Unified Storage systems? (Choose two.)

A) in the RAID group upon creation
B) SSD on the Cache Memory Adapter
C) swapped in and out of cache as needed
D) in Cache Memory Adapter Master Partition 0

2. You have been asked to allocate storage from a Hitachi Unified Storage system to a cluster of AIX hosts.
The application owner wants you to make sure that the queue depth is set to 16 for all the LUNs. Where
do you define the queue depth?

A) on the WWNN Target Ports
B) on the WWPN Target Ports
C) on the server HBAs
D) on each LUN

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

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

4. Which two Program Products reserve cache in a Hitachi Unified Storage system when they are installed,
even if disabled? (Choose two.)

A) TrueCopy Extended
B) Cache Partioning Manager
C) TrueCopy
D) ShadowImage

5. 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) Copy-on-Write Snapshot and TrueCopy Extended Distance no longer require a data pool for
differential data.
D) The DM-LU size is automatically adjusted depending upon the number of copy pairs.

Solutions: