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The advantages surpassing others
EMC E20-326 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Performance & High Availability | 10% | - RAID protection design - Cache partitioning and tuning - I/O characteristics and workload analysis - Multi-site availability design |
| Storage Provisioning & Virtualization | 20% | - Device configuration and masking - Thin pools and FAST VP technology - Symmetrix Virtual Provisioning - SRP and storage resource management |
| Symmetrix VMAX Architecture | 25% | - Hardware components and architecture - Enginuity operating environment - Cache and memory management - FA, DA, and SA director functionality |
| Remote Replication & SRDF | 25% | - SRDF/Synchronous and SRDF/Asynchronous - Disaster recovery planning - Networking and connectivity design - SRDF/Metro and SRDF/DM |
| Local Replication Solutions | 20% | - TimeFinder family overview - TimeFinder/Snap, Clone, and VP - Consistency groups and BCVs - Open Replicator functionality |
EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:
When does the ACOFW behavior apply in a TimeFinder/Snap environment?
- A. During writes to protected tracks on the virtual device
- B. During writes to protected tracks on the source device
- C. During all writes to the source device
- D. During all writes to the virtual device
Correct Answer: B 🗳️
A customer plans to configure their new Symmetrix VMAX 20K. They want your advice on how to configure a storage pool. This new storage pool will handle random write I/O
What should be your advice about RAID types as they relate to performance?
- A. Use RAID 6 because both RAID 1 and RAID 5 have a higher write penalty.
- B. RAID type does not matter since everything in the VMAX goes through cache.
- C. Use RAID 1 because RAID 5 and RAID 6 will have a higher write penalty.
- D. Use RAID 5 because it can be more efficient for random writes than RAID 1.
Correct Answer: C 🗳️
A customer asked you to design a storage solution for their new call center application. This is a new EMC customer and they do not have any existing storage infrastructure. Before you begin to design a solution, you request that the customer collect some host-based performance metrics.
When and how should the customer collect performance metrics?
- A. During peak workloads in large intervals
- B. During normal workloads in large intervals
- C. During normal workloads in small intervals
- D. During peak workloads in small intervals
Correct Answer: D 🗳️
A customer has implemented an Oracle application on a Symmetrix VMAX with a mix of Enterprise Flash Drives (EFD) and FC 15K drives. EFD are configured in RAID 5, and FC 15K drives are configured both in RAID 5 and RAID 1. In terms of IOPS activity, reads are predominant over writes. The customer decided to place a portion of the database in each tier.
Which Oracle database object(s) is suitable for placing on the FC 15K RAID 1 drives?
- A. Redo log files
- B. Index files
- C. Temp file
- D. Data files
Correct Answer: A 🗳️
When designing SRDF/A, what is the recommended configuration for the DSE pool?
- A. RAID 5 devices spread out over few disks
- B. RAID 6 devices on dedicated disks
- C. RAID 1 devices on dedicated disks
- D. RAID 1 devices spread out over many disks
Correct Answer: D 🗳️






