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Category: E20-555 (v.1)

Exam E20-555: Isilon Solutions and Design Specialist Exam for Technology Architects (update January 28th, 2014)

Which Isilon license options are required to meet the customer’s needs?

— 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.

— Exhibit —
Which Isilon license options are required to meet the customer’s needs?

Which configuration changes would you recommend for the Engineering users?

— 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.

— Exhibit —
Which configuration changes would you recommend for the Engineering users?

What steps would you recommend to the IT Director to allow for collaboration between the engineering company a

— 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.

— Exhibit —
What steps would you recommend to the IT Director to allow for collaboration between the
engineering company and the manufacturing company?

What do you recommend to the Director of IT as the best architecture to achieve this goal?

— 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.

— Exhibit —
The CIO approaches you with a new requirement. They would like to reuse the tape library that
was previously used for archiving to now be used to back up some of their data.
What do you recommend to the Director of IT as the best architecture to achieve this goal?

What do you recommend to the customer?

— Exhibit —
A European Sports TV network is considering Isilon for their Media Edit Storage for their editing
workloads. They are also considering Isilon for near-line media archiving.
The network receives XDCAM HD footage which is loaded onto their existing Transcoding Storage
platform. New footage that needs to be edited will be transferred from their Transcoding Storage

platform to the proposed Media Edit Storage platform at the rate of ten simultaneous XDCAM HD
files via FTP. Edited files will be transferred back to the Transcoding Storage platform at the rate
of ten simultaneous XDCAM HD files via FTP.
The network currently has 15 Final Cut Pro edit stations, 15 Avid edit stations. Proxy software will
be used to allow Isilon to act as the storage for the Final Cut Pro and Avid media. Three of those
edit stations will be performing content compositing as needed.
The network expects 70 hours of new content per week, and 50 hours of edited content per week.
They intend to keep the new and edited content on the proposed Media Edit Storage as a
performance tier for 30 days. They would like to retain all new and edited footage proposed Media
Edit Storage as a near-line tier for two years.
In addition to the current workloads, the network expects to implement a new Media Asset
Management (MAM) solution and has requested the Isilon cluster be capable of supporting 120
MBps read and 120 MBps write to support the MAM requirements.
— Exhibit –


The customer wants to be able to put completed content into a non-editable folder. However, they
want to give access to an administrator to delete content if required. What do you recommend to
the customer?

What would be the best price/performance solution for their active data?

— 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?

What is the best tool to gather this information?

— 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?

What would result in the fastest possible network throughput?

— 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 —
Currently, the workflows are being limited by the network access to the Isilon cluster.
What would result in the fastest possible network throughput?

what is the total amount of data from all the sequencers they can expect to add per month?

— 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 will add two more Illumina Hi-Seq Sequencers in the next 6 months.
Once these are added, what is the total amount of data from all the sequencers they can expect to
add per month?

Which is the best cluster configuration that meets the customer’s requirements?

Refer to the exhibit.

A large hospital chain has approached you to redesign their storage infrastructure. The head of IT
believes their requirement is for 100 TB of RAW capacity. They want to consolidate their PACS,
file shares and home directories onto one cluster and require very fast enumeration of the
directories. The following are the notes from meetings with the department heads.
Which is the best cluster configuration that meets the customer’s requirements?


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