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EMC E20-554 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Implementation and Troubleshooting | - Common issues and troubleshooting methods - Deployment planning and best practices |
| Topic 2: Solution Design Considerations | - Customer requirements analysis and sizing - Cluster design and scalability planning |
| Topic 3: Networking and Protocols | - Network architecture for Isilon clusters - NFS, SMB, and HDFS protocol support |
| Topic 4: Performance and Scalability | - Performance optimization techniques - Cluster scaling and workload distribution |
| Topic 5: Data Protection and Availability | - Snapshots, replication, and backup integration - Erasure coding and data protection schemes |
| Topic 6: Isilon / OneFS Architecture Fundamentals | - OneFS operating system fundamentals - Scale-out NAS architecture concepts |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
A cost-conscious customer is exploring Isilon for their PACS archive. The workflow consists of one hundred cases a day, each including fifty 60MB image files. However, each image will have five-hundred 64kB metadata files associated with it. They currently have six years worth of archived data. They will need to migrate to the new solution and they need to plan for an additional three years of archive capacity.
Which solution would you recommend to fit their capacity needs?
- A. 18 NL-Series nodes with N+2:1 protection policy providing 2078 TiB of useable capacity
- B. 24 X-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
- C. 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity
- D. 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
You are reviewing an opportunity with a trusted advisor. You both discover gaps in the initial solution design.
Each iterative discussion with the customer helps you define the solution better. The documents produced capture the customer's requirements.
What else needs to occur to refine the sizing considerations?
- A. Validate the Workflow Profile Assessment and test the solution against your findings.
- B. Provide the CIO with the findings and gain commitment to a Proof of Concept.
- C. Complete your Solution Design Document and forward to EMC consulting.
- D. Review you assumptions and ask the customer what business issue you're solving.
What key considerations should be kept in mind when designing a 300TB solution?
- A. SmartPools Smartconnect Snapshots Space for snapshots
- B. Workflow management Defining class of service Time of day services RPO and RTO Data retention and backup
- C. Always include 2% SSD SmartPools Smartconnect Snapshots InsightIQ
- D. Defining class of service Time of day services ROI and TCO Data retention and backup
A four-node Isilon cluster is being used in a Hadoop workflow with a parity protection of N+2:1. The HDFS protocol has been enabled and is being used to access data.
According to EMC best practices, how many additional many additional copies of data are written into the Isilon cluster using HDFS?
- A. One
- B. None
- C. Three
- D. Two
You are designing a new Isilon system to store mobile device video clips. The files average 800MB in size and the application team tells you to plan for up to 15,000 new files per day. The product manager for this new service wants enough capacity for the first year and reminds you that response time for storing and retrieving the files is important for customer satisfaction.
The files will be accessed frequently for the first 48 hours after creation, and then very infrequently after seven days. You plan to use N+2:1 protection, and will configure a SmartPools policy to move inactive files to an archive tier within the cluster.
Which configuration best fits the project requirements?
- A. 4 x X400 nodes with 1TB drives; 36 x NL400 nodes with 4TB drives
- B. 38 x X400 nodes with 4TB drives and SSD
- C. 4 x S200 nodes with SSD; 45 x NL400 nodes with 3TB drives
- D. 4 x X200 nodes with SSD; 36 x NL400 nodes with 4TB drives
