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Hitachi HH0-300 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Architecture & Design | 25% | - Disaster recovery and high availability planning - Replication solution sizing and capacity planning - Interoperability with VSP and storage platforms - Network design and bandwidth requirements |
| Replication Concepts & Fundamentals | 20% | - Synchronous vs asynchronous replication - Data protection and business continuity principles - Replication topologies and deployment models - RPO and RTO definitions and requirements |
| Hitachi Replication Technologies | 35% | - Hitachi ShadowImage - Hitachi Global Active Device (GAD) - Hitachi TrueCopy - Hitachi Command Suite management - Hitachi Universal Replicator (HUR) |
| Implementation, Operation & Troubleshooting | 20% | - Configuration and setup procedures - Monitoring replication status and performance - Common issues and resolution methods - Failover and failback processes |
Hitachi HITACHI DATA SYSTEMS CERTIFIED EXPERT -REPLICATION SOLUTIONS ARCHITECT Sample Questions:
1. A customer has a HUS 130 array and wants an asynchronous solution. The customer needs to understand which factors influence the TrueCopy Extended Distance cycle time.
Which two factors should be considered? (Choose two.)
A) reduced cycle time will always reduce your RPO
B) the amount of data written to the P-Vol
C) the maximum amount of data loss the operation could survive during a disaster
D) when splitting the pairs, the S-Vol will wait until the next update cycle so a reduced cycle time is important
2. What are two ways to improve initial copy time on a VirtualStorage Platform? (Choose two.)
A) Decrease copy pace.
B) Order devices in the HORCM file from highest change rate to lowest change rate.
C) Order devices in the HORCM file from lowest change rate to highest change rate.
D) Increase copy pace.
3. A customer would like a daily point-in-time copy of their database and retain each copy for two weeks. The customer would like to maximize their host write performance on the production server when the pairs are suspended.
Which product would satisfy the requirement?
A) Hitachi Dynamic Replicator
B) Hitachi Thin Image
C) ShadowImage
D) Copy-on-Write
4. What are two cache considerations for Hitachi Universal Replicator on the Virtual Storage Platform (VSP)? (Choose two.)
A) Journal overflow occurs when journal data destages to disk.
B) M-DKC journal cache is not used during initial copy operations.
C) Journal data will de-stage to disk when cache write pending exceeds 50 percent.
D) Cache sizing is not an issue with Hitachi Universal Replicator due to journaling function.
5. A customer is planning to replicate 66 TB of data using Hitachi Universal Replicator. What are three considerations for sizing the expected solution? (Choose three.)
A) the number of back-end directors on the recovery system
B) number of RAID groups for journal disks at both sides
C) number of disk drives of the primary system
D) total number of the IOPS for the environment
E) the percentage of writes for the environment
Solutions:
| Question # 1 Answer: B,C | Question # 2 Answer: C,D | Question # 3 Answer: B | Question # 4 Answer: B,C | Question # 5 Answer: B,D,E |








