You have 1000 users for an application that reads and writes files averaging between one and four
MB in size. Each user requires 24 MB of RAM. You want to add another 1000 users for this
application, and in preparation for them, you run the isi statistics command. You discover that the
average CPU utilization is 20%; aggregate throughput averages 700 MB/s and the disk Queued
average is 1.5. Your cluster currently has five X200 (12 GB RAM, 1 TB drive) nodes, uses N+2:1
protection and 1 GigE networking.
What should you do to accommodate the next 1000 users?

Your customer is looking for a storage solution that will be able to store seven million 3 MB files
which are written and seldom accessed. Read and write operations are both completed by a webbased application, which requires 1.3 Gbps throughput. The customer’s network has not been
upgraded in many years, so the network interfaces are 1 Gbps.
What would be the best solution for this network configuration?

In your second meeting with the customer you ask the following questions about their current
unified SAN and NAS platform.
“Are you using an application to map users from NFS Exports to SMB shares? Is each site a
separate LDAP or AD Domain?”
What functionality are you trying to understand in their environment and what is the comparable
feature in IsilonOneFS?

You will be meeting with the Corporate Security Team as part of the implementation planning for a
new Isilon cluster deployment. The Lead Security Analyst has asked you to discuss the
Authentication Sources on your Isilon Cluster.
What customer questions regarding Isilon-supported Authentication Sources do you need to be
prepared to answer?

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 company currently has multiple fileservers to provide home directories for its employees. Each
department has a separate fileserver. Most corporate users are on Windows clients and utilize
Active Directory, except for the Engineering department, which uses Linux and NIS for
authentication. The company is looking for a solution with minimal administrative overhead and a
single namespace for the home directories.
What is the recommended solution that will meet this company’s requirements?

Your customer has several departments that want separate access to the cluster so they can use
their individual authentication methods. Two of the departments will use NFS and two will use
SMB to access the cluster. What would you recommend?

A company currently has numerous file servers providing home directories for its employees.
Some departments have their own file servers. All corporate users authenticate using Active
Directory. The engineering department has their own untrusted AD domain for their file servers.
The company is looking for a consolidated solution that requires minimal changes to the
environment, and that creates a single namespace for the home directories.
What is the recommended solution that will meet this company’s requirements?

An Isilon customer is reporting less than expected performance from the cluster and poor space
utilization. The customer is using three X400 nodes with N+2:1 protection policy to host webserver
log data. Upon further analysis, it is discovered that the webservers write log files 64 KiB in size.
The log files are then accessed by an analytics application for reporting.
What should be done to increase write performance of the cluster?

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?