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- Disaster recovery design
- Protection levels and mirroring strategies
- Snapshot and backup integration
Topic 4: System Management and Operations
- Security and access control
- Upgrades and lifecycle management
- Monitoring and maintenance
Topic 5: Isilon Architecture and Components
- Data layout and striping methodology
- Node types and cluster design
- OneFS architecture fundamentals
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
A hospital is considering using Isilon to store their long-term archive data for their PACS application. They currently have two million 17 MB studies. They expect capacity requirements to be 50% compounded growth per year. They plan to use N+2:1 protection, and would like this sized for three years of growth.Which minimum cluster configuration would meet this customer's environment?
A. Four NL400 (2 TB drive) nodes
B. Five X200 (3 TB drive) nodes
C. Five NL400 (1 TB drive) nodes
D. Three X400 (3 TB drive) nodes
Answer: C
You have 1000 users for an application that reads and writes files averaging between one and four MB in size. Each user requires 24 MB of RAM. You want to add another 1000 users for this application, and in preparation for them, you run the isi statistics command. You discover that the average CPU utilization is 20%; aggregate throughput averages 700 MB/s and the disk QueueD average is 1.5. Your cluster currently has five X200 (12 GB RAM, 1 TB drive) nodes, uses N+2:1 protection and 1 GigE networking. What should you do to accommodate the next 1000 users?
A. Add five A100 (24 GB RAM) accelerator nodes.
B. Upgrade two of the 1 GigE NICs to 10 GigE on each node.
C. Add five additional X200 (12 GB, 1 TB drive) nodes
D. Upgrade each X200 node to a total of 24 GB of RAM.
Answer: C
A hospital is considering using Isilon to store their archived medical images and genomic sequencing data. They currently have 56 TB of PACS images and 24 TB of genomic data, and expect to double their capacity requirements this year. They will replicate to a DR cluster, and plan to use N+2 protection. The production workload needs to be run at either site. Which minimum cluster configuration, at each site, including software, would meet this customer's environment?
A. Seven X200 (3 TB drives) nodes with SyncIQ and SnapshotIQ
B. Five X400 (2 TB drives) nodes with SnapshotIQ.
C. Four NL400 (3 TB drives) nodes with SyncIQ.
D. Five X400 (2 TB drives) nodes with SyncIQ.
Answer: D
When designing Isilon solutions, which issue should you pay special attention to?
A. Follow all SSD sizing rules
B. Create a workflow document
C. Meet customer expectations
D. Conduct stakeholder interviews
Answer: C
A customer has eight X400 24GB RAM nodes that support 400 client connections. They will be adding 400 more clients in the next few months. They are looking at adding an A-Series node to the cluster to help with client connections.Before they start adding client connections, what hardware change do you recommend?
A. Add an A100 node to offset concurrent client connections
B. Add RAM to the nodes to offset concurrent client connections
C. Add nodes with SSD to help with connections
D. Add more network switches to increase the number of connections
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