DEE-1421 Expert - Isilon Solutions Exam Questions and Answers

A company has a Dell EMC Isilon cluster that will be used for a large amount of client requests. SmartConnect has been configured to help load balance the clients across the cluster. How does SmartConnect help the load balancing?

SPECIAL INSTRUCTIONS

The remaining Part1 questions are associated with four case studies that describe various environments or settings. Each case study appears on its own display screen. Questions for each case study will appear on separate display screens.

When displaying a question, you can easily review the related case study by clicking on the “Review Case Study” icon shown below:

Case Study 5 – Refer to the Exhibit.

Backing up data from a Dell EMC Isilon cluster exceeds the company’s backup window. Because the company has a large amount of data with a continuous high growth rate, they want to change their backup strategy. The Gen 6 Isilon cluster consists of 24 nodes. Their current backup strategy is an NDMP three-way backup performing weekly full backups to tape and incremental backups each night. The strategy uses Dell EMC NetWorker. The DMA uses Include paths to specify what data to backup. All data on the cluster must remain accessible.

The company’s IT team is now looking for a method to increase the performance of their backups. After some investigations, you notice that the backup job quiesces the file system. This is creating lock contention issues on open files and not allowing users full access to data when the backup job runs.

What advice should be provided to the team to eliminate lock contention and allow full access to users?

SPECIAL INSTRUCTIONS

The remaining Part1 questions are associated with four case studies that describe various environments or settings. Each case study appears on its own display screen. Questions for each case study will appear on separate display screens.

When displaying a question, you can easily review the related case study by clicking on the “Review Case Study” icon shown below:

Case Study 5 – Refer to the Exhibit.

Backing up data from a Dell EMC Isilon cluster exceeds the company’s backup window. Because the company has a large amount of data with a continuous high growth rate, they want to change their backup strategy. The Gen 6 Isilon cluster consists of 24 nodes. Their current backup strategy is an NDMP three-way backup performing weekly full backups to tape and incremental backups each night. The strategy uses Dell EMC NetWorker. The DMA uses Include paths to specify what data to backup. All data on the cluster must remain accessible.

The company’s IT team is now looking for a new data protection strategy. The company wants to:

Minimize the backup window

Increase the speed of data recovery

Reduce the network traffic

Reduce the overall growth of the backup datasets

The IT Team indicates that their currently backup hardware will be used in any solution. Which solution meets their requirements?

Which Dell EMC tool allows the auditing of user access and anti-virus scanning on an Isilon cluster?

You are working with a company to migrate from a Microsoft Windows file server to a Dell EMC Isilon cluster using the account “admin1” in the “Domain Admin” group. When opening a directory, you receive an error message stating “permission denied”. You check the permissions and see that Domain Users are denied, Domain Admin has Full Control, and admin1 has read permission.

Why is the access denied?

The DobiMigrate tool will be used to migrate data from a third-party platform to a Dell EMC Isilon cluster. Less than 50 GB of NFS, SMB, and multi-protocol data will be migrated. What are the minimum requirements for the migration?

A company has a cluster with two subnets. The first subnet has 1 GbE interfaces dedicated for management and the second subnet has 10GbE interfaces dedicated for handling all data access. When the cluster started serving the production environment, poor performance was observed while the data is accesses through the data subnet. While troubleshooting the network, the administrator discovered that the return traffic is going through the management network. Which recommended solution will resolve this issue?

A company has 7 PB of PACS achieve data on their Dell EMC Isilon cluster. The PACS application correctly creates and stores large containers of small files. Based on local healthcare regulation changes, the company can no longer user large containers of small files. As a result, the company wants to know if Isilon can support the new regulatory PACS requirement while maximizing the storage capacity for small files.

Which licensed feature should be activated?

A company has two Dell EMC Isilon clusters. The source cluster is running OneFS 8.0.x and the target cluster is running OneFS 7.2.x with replication policies configured from the source to the target cluster. OneFS will not be upgraded on the target cluster.

After some time, the company decided to archive some of the data to ECS using CloudPools. One of the company’s concerns is how the archived data will be replicated using the existing SyncIQ policies. What is recommended approach to address the company’s concerns?

Which protocol is used to send isi diagnostic gather logs from a Dell EMC Isilon cluster to Dell EMC Support when the ESRS gateway is unavailable?

A company has a Dell EMC Isilon Gen 5 cluster with SSDs in each node. The administrator notices that L3 Cache is enabled on the cluster. However, the administrator does not notice any performance increase for the read I/Os. After further investigations, the administrator discovers that all read I/Os are more than 128K chunks.

Which recommendation should be provided to improve the read performance?

A company is planning to replicate a dataset to a newly implemented Dell EMC Isilon cluster. SyncIQ will be used from the source cluster to the target cluster. The company’s systems administrator wants to know how long the initial synchronization will take without seeding. The administrator provides the following information:

Link speed between clusters is 1 Gb/s

Link speed efficiency is 85%

SyncIQ domain size is 125TB

If no SyncIQ performance rules are set, what is the estimated number of days?

Case Study 4

A company is experiencing a noticeable decrease in performance when accessing data on their Dell EMC Isilon cluster. The cluster hosts Microsoft Windows home directories and general purpose file shares. In addition, a file pool policy moves data that has not been modified in six months to an achieve tier. The administrator wants your assistance in understanding the reason for the slow data access. The number of users accessing the cluster has not changed.

The administrator has shared the following baseline metrics. The outputs were captured from a performance- acceptable time frame.

Trace route shows:

-3 hops between clients and the cluster

-Average latency is 3 ms

Iperf shows:

-940 Mb/s average bandwidth

-005 ms average jitter

Netstat on the local network shows:

-05% average re-transmission rate

Hostcache list:

-20 ms average roundtrip time across all clients

The administrator shows the following traceroute output:

6 hops between clients and the cluster

Average latency is 84 ms

Based on the output, what information should be provided the administrator?

A company’s HPC environment is using Dell EMC Isilon Gen 6 nodes. They have additional throughput requirements and have asked for your recommendations. The environment consists of two subnets:

Mgmt-subnet: 1x1-GigE interface in the “mgmt-pool” for management traffic on a VLAN-tagged management network in an Isilon default System Access zone.

Data-subnet: 2x10-GigE aggregated interfaces in the “data-pool” for data traffic on a VLAN-tagged data network in an Isilon user-defined data Access Zone

Which recommendation should be provided?