EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. A potential customer uses a solution from an EMC competitor for NFS storage in their main data center. The existing arrays are five years old, and the customer would like to consolidate them into a single new system. The entire workload is generated by eight Linux hosts connected to the arrays that process video files. The customer informs you they are not able to collect performance information from the existing arrays.
Which tools can capture the workload requirements?

A) Wireshark and sysstat
B) MiTrends and netmon
C) netstat and esxtop
D) iostat and nfsstat

2. You meet with the IT Director of a large single site campus. The IT department has recently taken over Physical Security from the facilities department and plans a complete overhaul of the surveillance solution. They are looking to you as a storage architecture expert to provide the correct amount of storage needed. The IT Director asks you what items they need to provide in order to size this solution.What data do you require from the customer?

A) Bit rate per camera Camera manufacturer Video management system Retention time
B) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Video management system Evidence collection period
C) Video resolution Video CODEC Frames per second (fps) Number of devices Retention time
D) Pixel count Video CODEC Color sampling Frames per second (fps) Number of devices Retention time

3. 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) 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
D) 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity

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

5. Refer to the exhibit.

You want to add redundancy to your network configuration, rather than performance. You have configured all interfaces into the default SmartConnect zone.
How should you configure the switches and Isilon networking to provide your desired network redundancy?

A) Configure the switch ports as access points and use LACP aggregation for subnet0:pool0.
B) Configure the switch ports as access points, bond ext-0 and ext-1 on all nodes and use Active/Passive aggregation for subnet0:pool0.
C) Configure the switch ports for LACP and use FEC aggregation for subnet0:pool0.
D) Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.

Solutions: