Free E20-555 Exam Dumps Preview

An Isilon customer has two 5-node clusters; one for production and one for disaster recovery (DR). The
customer's workflows are replicated to the DR cluster through SyncIQ on individual schedules. They shut down their production cluster for a scheduled DR test, failed over to the DR cluster, and continue their DR testing.

Assume both clusters have identical shares, exports, and user authentication. Additionally, assume the client applications have been stopped and the DNS re-pointed.

Which SyncIQ Policy method should be used to continue production operations?

An Isilon customer wants to more effectively manage their storage and thereby achieve performance improvements.

Which tool will help improve workflow performance on their cluster?

Your customer has an Isilon 4-node X400 cluster used for home directory use, and has since updated to OneFS 7.0. The HR and Legal departments have been very strict about using only dedicated file servers that are part of a single, isolated, untrusted Active Directory domain. Their filer has been out of maintenance, and fears are being raised that, due to the age, it may fail at some point.

What could the IT department do, to allow the HR and Legal groups to provide file share services, with minimal impact to their other application permissions?

In a multi-tenant environment, which OneFS feature can be used to isolate and secure data from each tenant?

A customer has a 7-node Isilon cluster configured with N+2:1 protection.

How many nodes can be offline with the data accessible and fully writeable?

What is the minimum number of connected and available nodes required to maintain quorum in a 25-node Isilon cluster?

A customer has an Isilon cluster with 6 nodes and a single 4-core CPU per node. The default configuration for SyncIQ workers per CPU core and SyncIQ workers per node per job limits are used.

How many SyncIQ workers are available for the Isilon cluster?

What accurately represents Isilon SyncIQ Automated Failover?

On an Isilon Gen 6 Cluster with 4 nodes and N+2d:1n protection, how much storage would a 64 KB file consume?

Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model.
You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for
their video surveillance operations.

They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec with a 30 days retention policy.

Which storage capacity would be the best suited to meet the required changes and utilize 65-75% capacity?

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?

When configuring Isilon SmartPools policies, which values are allowed for file pool policy storage destinations?

DRAG DROP

Match each tool with the task for which the tool is used.

You are designing a backup solution using an NDMP redirector and throttler.

What is the default threshold percentage of CPU resources that the throttler limits NDMP to?

A customer has a data retention period of three years. They want a solution in which files cannot be deleted, changed, or modified.

Which Isilon SmartLock version should they implement?

A customer wants to perform complete failover and failback testing on their production SyncIQ policies.

What are the first two recommended steps to ensure a successful test?

You are working with a healthcare company that is interested in replacing all the backend storage for their PACS system.
In general, how should the solution be presented to the customer?

Refer to the exhibit.

You want to add redundancy to your network configuration, rather than performance. You have configured all interfaces into the default SmartConnect zone.

How should you configure the switches and Isilon networking to provide your desired network redundancy?

An Isilon storage administrator is concerned about capacity after ingesting 200 TB of file data. They recently added more nodes to the cluster and now want to auto-balance it as soon as possible.

The cluster utilization percentages for an average 24-hour period are:
45% during 00:00 - 08:59
60% during 09:00 - 17:00
85% during 17:01 - 23:59

The administrator wants to keep cluster utilization at a minimum.

Which Impact Policy settings should be used to quickly complete the job without impacting the production workload?

You have been invited to meet with the Social Media and Marketing Department and gather requirements for a potential File System Project. They primarily use CIFS and are considering deploying a Hadoop cluster to analyze customer demographic data. The Senior Systems Engineer thinks they will need 2PB of usable capacity.

What would you do to gain an understanding of the customer's environment to qualify and develop the opportunity?

After raw events are processed by the CELOG coalescers, what happens to the data?

A customer is considering moving their NAS data over to Isilon systems. They want to know if the Isilon
systems have any limitations regarding snapshots.

What explanation can be provided?

A customer is considering using the CloudPools feature to send archive data to their on premises object storage appliance. The customer needs to know how many objects will be created by the Isilon when it
tiers files using CloudPools.

If the customer has 20 1MB files, 2 10MB files and 4 3MB files, how many objects will CloudPools version 1.0 create?

Where are file system changes first stored?

You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.

What would be a good prequalifying question to ask?

An Isilon customer wants a job to periodically validates the checksum of every block in the file system.

What should be recommended to the customer?

Which type of data is stored in Endurant Cache of an Isilon node?

Your customer has an existing Isilon cluster with seven X200 nodes. The cluster is used to store home directories and departmental shared folders. They are planning to deploy a new application that generates
small block, synchronous writes.

Which OneFS 7 capability can help reduce latency for the new workload?

How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?

Which Isilon OneFS job, that runs manually, is responsible for examining the entire file system for inconsistencies?

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?

You are reviewing an opportunity with a trusted advisor. You both discover gaps in the initial solution design.

Each iterative discussion with the customer helps you define the solution better. The documents produced capture the customer's requirements.

What else needs to occur to refine the sizing considerations?

Which process is used to protect file system structures against corruption through 32-bit CRC checksums?

Which Isilon job has a default priority of '1'?

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?

Which Isilon OneFS job is responsible for examining the entire file system for inconsistencies and runs manually?

A Media and Entertainment company is considering changing from 2K resolution to 4K resolution. They will continue to use the DNxHD 220 codec.

Assuming everything else stays the same, how will this change affect storage?

An administrator recently installed InsightIQ to gather cluster statistics, and wants to look at file system usage (such as the number of files in a directory). However, currently no file system statistics are displayed in InsightIQ after 24 hours.
Use of the cluster is moderate, and occurs 24 hours per day.

What job for InsightIQ should the administrator modify to successfully report these statistics?

A customer wants to add Unix users to their cluster, and requires that NFS access be fault-tolerant.

What would you recommend?

By default, which method is used by Isilon OneFS for SSDs?

You have scheduled a meeting with a prospective customer in the Life Sciences vertical market.

Which Isilon features should be presented to them?

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?

Which Isilon product is recommended where low-latency and maximum performance is a critical factor?

Which tool is used to perform a cluster-wide kernel configuration change on an Isilon Gen 6 cluster?

-- 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?

You need to gather information in order to design an Isilon solution.

What are included in the Top 10 qualification questions?

An Isilon customer has two 5-node clusters; one for production and one for disaster recovery (DR). The
customer's workflows are replicated to the DR cluster through SyncIQ on individual schedules. They have shut down their production cluster for scheduled maintenance, failed over to the DR cluster, and are currently operating from the DR site.

Assume both clusters have identical shares, exports, user authentication. In addition, assume the client applications have been stopped and the DNS re-pointed.

What is the easiest SyncIQ Policy method to continue operations on production?

A customer has an Isilon cluster that they want to simplify a Hadoop workflow. The workflow analyzes large amounts of log data written to storage using FTP and results are viewed by Microsoft Windows clients?

How can this be achieved?

An architect is designing a new cluster. The cluster contains H500 nodes to store home directories of 2000 users and A200 nodes to store backups of VMware virtual machines.

Which data access patterns should be used?

Your customer has an Isilon Gen 6 cluster with eight H400 nodes. During an unexpected power outage some of the nodes go offline simultaneously.

How many nodes need to remain up and communicating over the backend network to maintain a quorum in the cluster and still enable write access to the OneFS file system?

A potential customer requires 800 TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors.
During a meeting with the Director of IT you learn that the company is considering a solution from a competitor of EMC using two of the existing arrays and two new arrays.

Which Isilon capabilities would show a better ROI for the customer?

In OneFS, what is the largest number of disks in a subpool?