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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. -- Exhibit -
We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process data. They would like to expand Isilon to 2PB of active data and 1PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster.
-- Exhibit -
Currently, the workflows are being limited by the network access to the Isilon cluster.
What would result in the fastest possible network throughput?

A) Use LACP to aggregate the network connections.
B) Move analysis infrastructure to dedicated 10G network.
C) Implement jumbo frames.
D) Add four A-Series accelerator nodes.

2. Which IsilonOneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

A) N+1
B) N+3:1
C) N+2
D) N+2:1

3. 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 X200 nodes with SSD; 36 x NL400 nodes with 4TB drives
B) 4 x S200 nodes with SSD; 45 x NL400 nodes with 3TB drives
C) 38 x X400 nodes with 4TB drives and SSD
D) 4 x X400 nodes with 1TB drives; 36 x NL400 nodes with 4TB drives

4. Refer to the exhibit.

Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service?

A) nfsstat and getattr
B) iostat and fsstat
C) isi_netlogger and commit
D) tcpdump and nfsstat

5. A customer plans to consolidate 200 TB of digital images and video content. Performance is important for recently created files. However, the customer wants any content that has not been accessed within 30 days to be stored in the cluster at a much lower cost because performance is no longer critical.Which Isilon configuration should be recommended?

A) X-Series nodes and SmartQuotas
B) X-Series nodes, NL-Series nodes, and SmartPools
C) S-Series nodes, X-Series nodes, and SmartPools
D) NL-Series nodes and SmartLock

Solutions: