Online Access Free HAT-420 Exam Questions

A customer wants to migrate data between two Hitachi Unified Storage systems using TrueCopy. What
are two requirements? (Choose two.)

• A.The DM-LU must be greater than 10GB.
• B.The P-Vol and S-Vol size must be equal.
• C.A Command Device must be created.
• D.There must be FC connectivity between the arrays.

Hitachi Dynamic Link Manager is being used with a Hitachi Unified Storage system in a multi-path
environment with intense sequential I/Os. What are two recommended load-balancing algorithms?
(Choose two.)

• A.extended round-robin
• B.least blocks
• C.least I/Os
• D.extended least I/Os

You have to replace a Cache Backup Battery online on a Hitachi Unified Storage system. Which two
statements are correct? (Choose two.)

• A.You should not perform any replacement while the green READY LED on the front of the Controller
  Box is blinking at high speed.
• B.When the power is turned off during the replacement, user data on the cache that has not been written
  will be backed up to flash memory.
• C.You must complete the replacement within a certain time frame.
• D.You should only perform the replacement while the green READY LED on the front of the Controller
  Box is blinking at high speed.

You plan to use Storage Navigator Modular 2 (SNM2) to perform a non-disruptive upgrade of the firmware
on a Hitachi Unified Storage (HUS) system. What are two requirements for this process? (Choose two.)

• A.You must have a working LAN connection between the SNM2 server and the HUS.
• B.The HUS must have a Device Manager Agent installed and running.
• C.All hosts must be connected to the HUS using HDLM or similar multi-pathing software.
• D.There must be no hardware faults or missing components on the HUS.

A customer wants to migrate Hitachi AMS2300 data to a newly acquired Hitachi Unified Storage (HUS)
system. Which statement about the migration is correct?

• A.Modular Volume Migration can be used.
• B.The Data Migration license key is required on both sides.
• C.TrueCopy or TrueCopy Extended Distance can be used.
• D.The Data Migration license key is only required on the HUS.