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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. You have had several discussions with your customer in the processor design industry. They have stated that they want a Scale-Out NAS platform for their design environment. Their most significant responses were "We have 125 design engineers accessing large diagrams and we need high throughput to support them. Can we also get the highest performance available? We need to stay ahead of our competitors." Other areas you discussed were their data retention policies and workflow after the chip design is completed. They plan to archive the design files but the files must stay on line.
What is your initial node recommendation?

A) X-Series nodes with SSD for the active diagrams and NL nodes for the archives
B) S-Series nodes for the active diagrams and NL Series nodes for the archives
C) X-Series nodes for the active diagrams and NL 400 nodes for the archives
D) A-Series nodes for the active diagrams and X-Series nodes for the archives.

2. You are asked to size a cluster for a file sharing environment. nfsstat indicates that no more than 10% of the requests are namespace operations (e.g. GETADDR, SETADDR). There will be 10,000 active Linux users, connecting over NFS.
Which cluster configuration would you recommend?

A) Ten X400 (60 TB) 48 GB RAM, 2.4 TB SSD, N+2:1
B) Five X400 (120 TB) 96 GB RAM, 2.4 TB SSD, N+2
C) Ten X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
D) Eight X200 (36 TB) 24 GB RAM, no SSD, N+2:1

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

4. You are sizing an Isilon cluster for a new customer. Analyzing their workflow you determine that they have a large block random read workload.What is the most important factor to consider when sizing this solution?

A) Headroom
B) IOPS
C) Bandwidth
D) Latency

5. Refer to the exhibit.

You are analyzing a customer's existing Isilon environment using isi statistics in order to expand the cluster. When examining the protocol subcommand, you see the output as shown in the exhibit.
What does the data tell you about the workload?

A) It is mostly sequential reads.
B) It uses large read requests.
C) It is metadata intensive.
D) It contains mostly random writes.

Solutions: