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Hitachi HAT-420 Exam Syllabus Topics:

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

1. A customer uses TrueCopy and ShadowImage with Hitachi AMS2000 modular arrays. They are
interested in upgrading those systems to Hitachi Unified Storage (HUS). Which two benefits will the
customer have with HUS systems in this environment? (Choose two.)

A) TrueCopy and ShadowImage will require less cache in the systems.
B) The size of the DM-LU used for ShadowImage and TrueCopy will be reduced by about 50%.
C) The granularity of differential data being copied to the replication target has improved.
D) TrueCopy and ShadowImage will no longer require a DM-LU.

2. What allows firmware to be updated non-disruptively on the Hitachi Unified Storage systems?

A) While one controller is rebooting, the other handles all host operations.
B) Firmware updates only affect the first five drives and no controller reboot is required.
C) Firmware updates are performed in less than the host I/O timeout value.
D) Host connectivity to both controllers established using multi-pathing software.

3. What needs to be replaced in case of a local memory DIMM failure on a Hitachi Unified Storage
controller?

A) the controller, the local memory DIMM and the cache DIMMs
B) the controller
C) the local memory DIMM
D) the controller and the local memory DIMM

4. What are three characteristics of the Hitachi Unified Storage systems active/active controller design?
(Choose three.)

A) Workload is automatically balanced between controllers.
B) SNM2 GUI is used to turn on active/active controller processing.
C) When creating a LUN the default controller must be selected.
D) The processor of Ctlr0 can access the Fibre Channel (FC) ports of Ctrl1.
E) Non disruptive firmware upgrade is possible even if a host is connected by only one path.

5. What is a key characteristic of the Modular Volume Migration feature on a Hitachi Unified Storage (HUS)
system?

A) It migrates volumes between HUS systems.
B) It migrates volumes within a HUS system.
C) It migrates volumes within the same RAID group.
D) It uses the Copy-on-Write Snapshot engine.

Solutions: