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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Replication Concepts & Fundamentals | 20% | - Data protection and business continuity principles - RPO and RTO definitions and requirements - Replication topologies and deployment models - Synchronous vs asynchronous replication |
| Topic 2: Hitachi Replication Technologies | 35% | - Hitachi ShadowImage - Hitachi Universal Replicator (HUR) - Hitachi Command Suite management - Hitachi TrueCopy - Hitachi Global Active Device (GAD) |
| Topic 3: Architecture & Design | 25% | - Network design and bandwidth requirements - Disaster recovery and high availability planning - Interoperability with VSP and storage platforms - Replication solution sizing and capacity planning |
| Topic 4: Implementation, Operation & Troubleshooting | 20% | - Configuration and setup procedures - Monitoring replication status and performance - Common issues and resolution methods - Failover and failback processes |
1. A customer is planning to replicate 10 TB of data using synchronous replication.
What are two primary considerations? (Choose two.)
A) the distance between data center
B) the available bandwidth
C) the number of host channels attached to the secondary system
D) the number of host write IOPS per second of the secondary system
2. A customer has chosen a low-cost carrier for their telecommunications link that will be used for replication. The customer expects that infrequent outages may occur. The customer requires a minimum of one consistent copy at the recovery site at all times.
Which two statements describe the customer's requirement for remote point-in-time copies? (Choose two.)
A) Point-in-time copies are required with TrueCopy to ensure data consistency while the pairs resynchronize following the outages.
B) Point-in-time copies are required with Hitachi Universal Replicator to ensure data consistency while the journal drains following the outages.
C) Point-in-time copies are not required with Hitachi Universal Replicator to ensure data consistency while the journal drains following the outages.
D) Point-in-time copies are not required with TrueCopy to ensure data consistency while the pairs resynchronize following the outages.
3. You want to calculate resource requirements for Hitachi Universal Replicator.
Which two formulas are appropriate? (Choose two.)
A) Host delay = 2 * [(distance between MCU and RCU) / (speed of light)] + losses due to network overhead
B) Bandwidth = peak rolling average in MB/sec
C) Journal Capacity = (peak rolling average write MB/sec) * RPO (minimum of 6 GB)
D) Number of RAID groups for journal volumes = (peak rolling average MB/sec based on RPO) / (total throughput per RAID group)
4. How do you separate TrueCopy and Hitachi Universal Replicator traffic running between two VSPs?
A) Specify path groups.
B) Assign separate MPBs.
C) Use separate HORCM instances.
D) Configure a separate CLPR for each topology
5. Which two factors will affect ShadowImageresync time? (Choose two.)
A) Number of data copies
B) Number of tracks updated while suspended
C) Incoming host write workload
D) Installed shared memory capacity
Solutions:
| Question # 1 Answer: A,B | Question # 2 Answer: A,C | Question # 3 Answer: B,C | Question # 4 Answer: A | Question # 5 Answer: B,C |
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