EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

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

2. A healthcare services provider is implementing an X-Series cluster. Currently they have approximately 200 customers and they are growing at 30% per year. They have 200 TB of storage utilized. Health Insurance Portability and Accountability Act (HIPAA) regulations require they keep all patient data for seven (7) years. They would like to keep all genomic sequencing data stored with N+3 protection, not to exceed 75% utilization.
What is the minimum initial configuration you would recommend?

A) 7 X400 nodes; 1 TB drives
B) 13 X400 nodes; 1 TB drives
C) 6 X400 nodes; 4 TB drives
D) 13 X200 nodes; 3 TB drives

3. You have gathered information from your customer about their current NAS environment. They indicated they are having performance and time-out issues with their clients accessing the storage. Currently over 5000 clients are simultaneously accessing the NAS; however, this will double in the next year.
Based on this information, what recommendations for a new Isilon cluster would you give to the customer based on this information?

A) Create a five node X400 cluster today. As more clients are added, add a Performance Accelerator node for every 1000 clients.
B) Create a seven node X400 cluster today. You will not need to purchase additional nodes as more clients are added.
C) Create a six node X400 cluster today. As additional clients are added, add additional X400 nodes for them.
D) Create a three node cluster today. As more clients are added, add three additional nodes each time for 1000 clients.

4. A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?

A) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
Data recovery is consistent, taking the same amount of time regardless of cluster size.
Isilon 'short strokes' 4TB drives to reduce rebuild time.
B) Isilon nodes have more drives per rack unit so fewer shelves are required.
Proactive hot sparing eliminates most drive rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
C) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Data redistribution runs faster with more nodes in the cluster.
D) N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Proactive hot sparing eliminates most drive rebuilds.
Endurant Cache reduces the overhead for write operations.

5. When designing Isilon solutions, which issue should you pay special attention to?

A) Follow all SSD sizing rules
B) Meet customer expectations
C) Create a workflow document
D) Conduct stakeholder interviews

Solutions: