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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. An Isilon customer expressed an interest in more effectively managing their storage. Specifically, they would like to plan for future growth.
Which tool would allow the customer to forecast capacity requirements?

A) SyncIQ
B) Isilon SNMP MIB
C) InsightIQ
D) SmartPools

2. 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) Upgrade each X200 node to a total of 24 GB of RAM.
B) Add five A100 (24 GB RAM) accelerator nodes.
C) Upgrade two of the 1 GigE NICs to 10 GigE on each node.
D) Add five additional X200 (12 GB, 1 TB drive) nodes

3. -- 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) Implement jumbo frames.
C) Use LACP to aggregate the network connections.
D) Add four A-Series accelerator nodes.

4. You are assisting a customer with creating an Isilon solution that will address their needs while remaining cost-effective. The customer environment consists entirely of archive data. The data in their enterprise produces very little I/O and is only occasionally accessed.
Which Isilon storage node type will meet the customer's needs?

A) S-Series node
B) NL-Series node
C) Performance Accelerator node
D) X-Series node

5. When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?

A) Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?
B) How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
C) What does your network architecture look like?
Do you have existing NAS infrastructure?
Do you have 10Gb or 1Gb ethernet?
Which applications will access this storage?
D) Who are the application owners?
How much usable storage is needed?
What applications will be accessing the storage?
How many users are in your Active Directory?

Solutions: