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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. -- 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 -
The customer has a limited budget. What would be the best price/performance solution for their active data?

A) 14 X-Series nodes with no SSD drives and 96GB of RAM
B) 12 X-Series nodes with no SSD drives and 24GB of RAM
C) 17 X-Series nodes with SSD drives and 48GB of RAM.
D) 14 NL-Series nodes with 24GB of RAM

2. Your customer has an Isilon cluster with five X400 nodes and four 72NL nodes. A SmartPools policy moves data to the NL nodes after 60 days of inactivity. The customer wants to expand the archive tier by at least 150 TB and would like to manage a single archive pool.
Which nodes should be added to the cluster?

A) Two X400 nodes with 3TB drives
B) Three NL400 nodes with 2TB drives
C) Two NL400 nodes with 4TB drives
D) Three X400 nodes with 1TB drives

3. A potential customer has about 540TB of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. They have LDAP and Active Directory authentication and primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives. They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.
Which tools would you use to gather information to do your Isilon sizing?

A) MiTrendWPA ,Autosupport, and PerfCollect
B) isi status, isi_netlogger, and PerfMon
C) Isilon Insight IQ, OnCommand Insight, and nfsstat
D) Wireshark, isi statistics, and iostat

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 -
Before making any changes, the customer would like a graphical presentation of their existing array performance to present to management.What is the best tool to gather this information?

A) isi_netlogger
B) InsightIQ
C) netstat
D) tcpdump

5. A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that 'tree-deletes' are taking too long and can only be run on weekends.
What would you recommend to speed up the 'tree-deletes'?

A) Add 20% more nodes to the cluster to help with degraded performance.
B) Use an A100 node for added CPU performance to help with 'tree-deletes.'
C) Add an SSD tier for metadata, ensuring all nodes have SSDs.
D) Add an SSD node tier for metadata to account for at least 2% of RAW capacity

Solutions: