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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. 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 X200 nodes with SSD; 36 x NL400 nodes with 4TB drives
D) 4 x S200 nodes with SSD; 45 x NL400 nodes with 3TB drives

2. Which protocols are supported by IsilonOneFS for file access?

A) SMB, HTTP, SMTP, HDFS
B) FTP, NFS, SMB, FC
C) NFS, HDFS, HTTP, SMB
D) HDFS, NFS, iSCSI, SNMP

3. Your customer has an existing Isilon cluster comprised of five NL-Series nodes. They have a new project that will quadruple their current throughput requirements. Upon reviewing reports in InsightIQ, you see that the aggregate external network throughput is peaking at 600MB/s. The customer states that data is only active for the first 7 days, but they keep it indefinitely.
Which recommendation best supports their growth requirements?

A) Use the Isilon Sizing Tool to determine GNA requirements, and add NL-Series nodes with SSD to the cluster.
B) Add a VNX Unified array for the new project, and use rsync to migrate data to the Isilon cluster for archiving.
C) Add A-Series nodes to the cluster to boost combined network performance.
D) Add X-Series nodes to the cluster, and use SmartPools to migrate inactive data to the NL-Series nodes.

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

5. Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.
They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec with a 30 days retention policy.
Which storage capacity would be the best suited to meet the required changes and utilize 65-75% capacity?

A) 80TB
B) 50TB
C) 110TB
D) 140TB

Solutions: