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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. -- Exhibit -
A large manufacturing company is an existing Isilon customer with a cluster consisting of four NL400 nodes with 4TB drives. The cluster is using N+2:1 protection level and the file system shows that it is 60% utilized. Home directories and file shares comprise 75% of the existing content and the remainder is inactive deep archive. The company has 1,000 employees using Windows and Mac clients participating in a single Active Directory (AD) forest.
During a meeting with the CIO and Director of IT you discuss the company's recent acquisition - an engineering firm that specializes in Computer Aided Design (CAD). The engineering firm has 400 UNIX workstations that produce technical drawings which are currently stored on another vendor's SAN solution. The all UNIX environment uses NIS for authentication and name resolution. They do not currently use DNS or LDAP. The engineering company has an old storage system that has been experiencing problems and the CIO would like you to migrate the data onto the Isilon cluster. The CIO would like to eliminate all tape and recover the data onto disk.
The CIO is concerned about security of the company's intellectual property, especially with the rapid adoption of mobile devices and external cloud content sharing services such as DropBox, Egnyte, and SugarSync. They would like to implement an alternative that provides external file sharing and mobile device synchronization while maintaining security control over the company's data.
The Director of IT reports that users are storing non-work related content on the Isilon cluster. They would like to limit the amount of capacity that each user can consume in their home directory and want to ensure you provide the capability to easily visualize which users are over their allotment. The company's Windows users currently leverage Windows Shadow Copy to recover files that have been accidentally deleted. The IT department wants to ensure that Mac and incoming UNIX clients have the same functionality.
The Director of IT also mentions that users are reporting slow response times when browsing their home directories and shared folders. They are concerned that Isilon cannot scale to support their combined requirements.
The customer provides the following environment summary from the engineering firm's recently departed IT staff:
20 TB of Home Directory data
100 TB of active CAD projects
400 TB of archived data stored on tape at an offsite warehouse -- Exhibit -
Based on the meeting with the customer, which Isilon cluster configuration would you recommend?

A) 9 x S200 nodes with 2 x SSD and 22 x 900GB SAS
B) 4 x NL400 nodes with 36 x 4TB drives
C) 4 x X400 nodes with 2 x SSD and 34 x 4TB drives 1 x Additional NL400
D) 6 x X400 nodes with 36 x 4TB drives 1 x Backup Accelerator

2. Refer to the exhibit.

Your customer has three different clusters. File systems on two of the clusters are at 90% full, and the largest cluster is 10% full. Active data resides on the largest cluster. The customer has five different node types totaling 2PB and 54 nodes. Nodes from left to right are as shown:
1. X200
2.12000X
3.36000X
4.NL108
5.108NL
They have a Smartpool license and believe that tiering data would help free up needed space.
After talking with the customer and explaining the use of SmartPools, how would you recommend optimizing utilization across all of the nodes that the customer owns?

A) Explain to the customer that this will result in data loss.
B) Attach all nodes to a common Infiniband switch.
C) Go to GUI and put alike nodes in the same pools. Then name them.
D) Borrow nodes to reconfigure the cluster and migrate the data to new cluster.

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

4. You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?

A) What application are you using to create directories?
B) How many users are in your Directory Services?
C) What protocols are accessing your NAS?
D) Is your datacenter ISO9001 compliant?

5. A customer is making a decision between Isilon and a competitor's offering. They currently have 100TB of usable capacity and are forecasting 100% growth per year for the next three years, which will require them to lease additional space in their co-located data center. The CFO finds ROI and TCO to be important decision criteria.
Which statement best emphasizes the value of Isilon for this customer?

A) An IDC study found that Isilon requires 95% less down time hours per year compared to other competitors.
B) Isilon'sOneFS allows administrators to manage much larger amounts of capacity than competitive offerings.
C) The competition cannot offer a scale-out NAS so as capacity is added to the array, performance may degrade.
D) Isilon'sOneFS data protection policies offer substantially lower overhead than competitive RAID based NAS solutions.

Solutions: