Most Up-to-date Isilon Solutions And Design Specialist Exam For Technology Architects E20-555 Questions Pool

NEW QUESTION 1
A cluster has user quotas configured for user’s home directories with hard limits and advisory limits set. What would the default setting be for calculating user quotas on the cluster?

• A. User data and data protection overhead only
• B. User data only
• C. User data, snapshot data, and data protection overhead
• D. User data and snapshot data only

Answer: C

NEW QUESTION 2
A customer experiences a system failure on an Isilon storage node.However, the disk drives in the node are not affected.
What is the preferred method for restoring cluster integrity?

• A. Engage EMC support to perform a Disk Tango process to move drives, journal, and boot volumes to a replacement chassis
• B. Allow OneFS to proceed with its automatic SmartFail process to re-protect the failed node
• C. Migrate the disks from the failed node into spare drive bays on other nodes
• D. Initiate a manual SmartFail process on the node as it is not started automatically

Answer: A

NEW QUESTION 3
Your customer manages a print media environment, consisting of three Isilon clusters, which are out of support. The customer would like to have access to new software releases and feature sets. You have been asked to perform a full discovery of the customer’s environment.
The customer's current Isilon clusters are as follows:
“Cust” (12 x 12000X) serves as upload media storage for different tenants.
“Working” (8 x 12000X + 6 x X200) serves as a working zone for extraction to RAW and printing media from it.
“Archive” (16 x 72NL + Accelerator nodes) is used to store printed content for six months.
The customer operates in a Windows environment using SMB 2.0, two DNS servers per AD forest, three forest domains which are servicing three different environments. All servers are operating on a 1Gb network, three VLANs segregating the DEV/QA/PROD environments. Currently, there is no monitoring in place for performance measurement or optimization.
The requirements for this solution include:
Better ROI and TCO
Maintain same performance with possible improvements
Renew HW/SW and get inclusive support
Limit migrations
Reduce space, power, cooling consumption
Get new feature sets
If migration required, use Parallel copy (multiple nodes, multiple threads, multiple connections)
Segregate tenant shares from other tenants
Expand up to 1PB of total storage
Which licenses need to be defined for the solution to perform optimally?

• A. HDFS, SmartQuotas, SnapshotIQ, InsightIQ
• B. SmartPools, SnapshotIQ, SyncIQ, SmartLock
• C. InsightIQ, SmartPools, SyncIQ, SmartConnect Advanced
• D. SyncIQ, InsightIQ, SmartPools, Platform API

Answer: B

NEW QUESTION 4
You have had several discussions with your customer in the processor design industry. They have stated that they want a Scale-Out NAS platform for their design environment. Their most significant responses were "We have 125 design engineers accessing large diagrams and we need high throughput to support them. Can we also get the highest performance available? We need to stay ahead of our competitors." Other areas you discussed were their data retention policies and workflow after the chip design is completed. They plan to archive the design files but the files must stay on line.
What is your initial node recommendation?

• A. S-Series nodes for the active diagrams and NL Series nodes for the archives
• B. A-Series nodes for the active diagrams and X-Series nodes for the archives.
• C. X-Series nodes for the active diagrams and NL 400 nodes for the archives
• D. X-Series nodes with SSD for the active diagrams and NL nodes for the archives

Answer: A

NEW QUESTION 5
Refer to the exhibit.

A customer calls you and asks if you could come by and interpret their InsightIQ data. You see that namespace reads are 63% of the work load.
What would you recommend to help this cluster's namespace performance?

• A. Add SSDs
• B. Add A-Series nodes
• C. Add S-Series nodes
• D. Turn off write cache

Answer: A

NEW QUESTION 6
-- 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 -
Refer to the exhibit.

Based on the number of edit stations, and their intended use, what bandwidth requirements should be considered while sizing?

• A. Write Performance:70 MBps FTP sequential21 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB randomRead Performance:70 MBps FTP sequential210 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB random
• B. Write Performance:550 MBps FTP sequential275 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB randomRead Performance:550 MBps FTP sequential1.6 GBps NFS and/or SMB sequential120 MBps NFS and/or SMB random
• C. Write Performance:21 MBps FTP sequential70 MBps NFS and/or SMB sequential120 MBps NFSand/or SMB randomRead Performance:210 MBps FTP sequential70 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB random
• D. Write Performance:70 MBps FTP sequential210 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB randomRead Performance:70 MBps FTP sequential21 MBps NFS and/or SMB sequential120 MBps NFS and/or SMB random

Answer: A

NEW QUESTION 7
There is a concern that there are not enough physical switch ports available for the Isilon cluster in a new implementation with SMB and ICAP requirements. What course of action should be taken?

• A. Team the NICs across the nodes and just add one connection to minimize the ports required.
• B. The customer needs to provide more switch ports for the implementation
• C. Create a SmartConnect zone across all ports but do not connect all of them
• D. Leave the archival nodes off the external network switch to save switch ports

Answer: B

NEW QUESTION 8
How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?

• A. 4 KB
• B. 8 KB
• C. 16 KB
• D. 32 KB

Answer: B

NEW QUESTION 9
You have had several meetings with an existing EMC VMAX customer. They have agreed that they would like to review an initial Isilon Solution for unstructured data used by the Product Development Team. All production is managed through a Global Enterprise Resource Planning system based in Germany. They require 600TiB of usable capacity. The File System must be accessible from Windows and Linux High-End Workstations. The files are generally not accessed after 120 days, and they would like automated tiering.
Which questions about architectural integration will impact the solution design?

• A. • What Enterprise Resource Planning platform are they using in manufacturing?• What is their Recovery Point Objective?• What is their Archival Strategy?
• B. • How many data centers do they have?• Will their Network Infrastructure support implementing Isilon?• What Enterprise Resource Planning platform are they using in manufacturing?
• C. • How many clients will access the File System?• Will their VDI clients access the Isilon Cluster?• What is the DR plan for the ERP System?
• D. • What non-sizing-specific factors in the customer’s environment could impede integration of the Isilon solution?• What applications are they using?• What are your priorities among performance, scalability, or availability?

Answer: C

NEW QUESTION 10
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. Initiate Automated Failback
• B. Revert
• C. Initiate Manual Failback
• D. No change is needed

Answer: A

NEW QUESTION 11
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?

• A. Endurant Cache
• B. L2 Cache
• C. Solid State Drives
• D. Prefetcher

Answer: A

NEW QUESTION 12
When designing Isilon solutions, which issue should you pay special attention to?

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

Answer: A

NEW QUESTION 13
What does Isilon OneFS use to re-write data when a disk read fails?

• A. Dynamic Sector Repair
• B. NVRAM
• C. Isilon Data Integrity
• D. CRC

Answer: A

NEW QUESTION 14
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?

• A. IntegrityScan
• B. MediaScan
• C. Dynamic Sector Repair
• D. Isilon Data Integrity

Answer: A

NEW QUESTION 15
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 65% utilized for their video surveillance operations.
They wish to achieve the following:
Upgrade from 1280 x 720 resolution, with a 15 days retention policy, to 2048 x 1536 resolution with a 30 days retention policy.
What is the minimum number of nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

• A. 6 nodes
• B. 10 nodes
• C. 14 nodes
• D. 18 nodes

Answer: A

NEW QUESTION 16
You are setting up SmartPools on the cluster. Which Microsoft Windows system tool will illustrate the difference in performance experienced by clients connecting to different tiers of storage?

• A. IOZone
• B. Iometer
• C. iostat
• D. MiTrend

Answer: A

NEW QUESTION 17
An Isilon customer experienced a node failure. The failure requires that the affected node be permanently removed from the cluster. What will occur in the cluster upon failure of the node?

• A. OneFS will assume it is a temporary failure and the data will not be protected at the appropriate levels.
• B. Cluster will detect the node failure and automatically begin the SmartFail process.
• C. FlexProtect will be activated and data will be protected at the appropriate levels.
• D. Nothin
• E. When data protection levels are set appropriately, OneFS will always protect data without manual interaction.

Answer: A

NEW QUESTION 18
What do you need to take into consideration when planning a job schedule?

• A. Any three other jobs can run at the same time and they can run in conjunction with restripe or mark job phases.
• B. Multiple restripe category job phases and one-mark category job phase can run at the same time.
• C. Up to three jobs can run at the same tim
• D. Multiple restripe or mark job phases can safely and securely run simultaneously without interfering with each other and without risk of data corruption.
• E. Up to three jobs can run at the same tim
• F. Multiple restripe or mark job phases cannot safely and securely run simultaneously without interfering with each other and without risk of data corruption.

Answer: A

NEW QUESTION 19
A customer has an SMB file directory with 375 TB of data on the primary cluster with a protection level of N+3:1. They want to replicate this directory to the secondary cluster. They are interested in the possibility of setting protection levels on the target cluster.
Which target directory protection level information can be provided?

• A. Does not need to match the source and is configured separately on the target cluster
• B. Must match the source and is configured separately on the target cluster
• C. Cannot be altered and is controlled by SyncIQ
• D. Can be altered by the command line interface and is controlled by SyncIQ

Answer: A

NEW QUESTION 20
A customer has two data centers (Site A and Site B) and in each data center there is an Isilon cluster. They are replicating data between the sites using SyncIQ.
You have been reviewing their disaster recovery plan and found the following:
The policies specify that SyncIQ runs a replication job every four hours and that the job finishes within one hour.
Three additional hours will be needed to get servers and the network redirected to work from Site B.
What is the Recovery Point Objective in this plan?

• A. 3 hours
• B. 4 hours
• C. 5 hours
• D. 6 hours

Answer: B

NEW QUESTION 21
You are asked to size a cluster for a file sharing environment. nfsstat indicates that no more than 10% of the requests are namespace operations (e.g. GETADDR, SETADDR). There will be 10,000 active Linux users, connecting over NFS.
Which cluster configuration would you recommend?

• A. Ten X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
• B. Five X400 (120 TB) 96 GB RAM, 2.4 TB SSD, N+2
• C. Ten X400 (60 TB) 48 GB RAM, 2.4 TB SSD, N+2:1
• D. Eight X200 (36 TB) 24 GB RAM, no SSD, N+2:1

Answer: A

NEW QUESTION 22
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?

• A. Configure the switch ports for LACP and use LACP aggregation for subnet0:pool0.
• B. Configure the switch ports as access points and use LACP aggregation for subnet0:pool0.
• C. Configure the switch ports for LACP and use FEC aggregation for subnet0:pool0.
• D. Configure the switch ports as access points, bond ext-0 and ext-1 on all nodes and use Active/Passive aggregation for subnet0:pool0.

Answer: A

NEW QUESTION 23
Which Isilon job periodically checks disk sectors to ensure they can be read?

• A. MediaScan
• B. IntegrityScan
• C. Dynamic Sector Repair
• D. Isilon Data Integrity

Answer: A

NEW QUESTION 24
An Isilon customer created a scheduled SyncIQ policy to replicate data from an Enterprise-mode SmartLock directory. The source cluster is now unusable and the target cluster does not automatically allow writes to the data in the replicated SmartLock directory.
What is the reason why the target cluster did not automatically allow writes of the data?

• A. SyncIQ Automated failover is not supported for SmartLock directories; however, manual failover is allowed.
• B. Automated failover and manual failover are not allowed on SmartLock directories on the target cluster.
• C. A SyncIQ job was running while the source cluster became unusable, thereby removing all data on the target directory.
• D. SnapshotIQ was not licensed on the target cluster; the snapshot of the directory is not available for use by SyncIQ.

Answer: A

NEW QUESTION 25
Which SmartConnect policies are used for workloads that have short lived connections such as HTTP and FTP?

• A. Connection count and round robin
• B. Round robin and CPU usage
• C. Throughput and CPU usage
• D. Throughput and connection count

Answer: C

NEW QUESTION 26
-- 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?

• A. Direct all clients to use the Manufacturing DNS server and connect NFS mounts to the FQDN of the Isilon cluster.
• B. Mount an NFS share to a node on the Isilon cluster, being careful to equally distribute the load across nodes.
• C. Utilize SMB2.1 protocol and mount to the Isilon cluster using the Name Server (NS) record IP.
• D. Create an FQDN for the Isilon cluster in the LMHOSTS file for each engineering system.

Answer: A

NEW QUESTION 27
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?

• A. 4 x X-Series nodes using SynqIQ to 4 x NL-Series nodes
• B. 3 x S-Series nodes using SmartPools and 3 x NL-Series nodes for Archive
• C. 5 x S-Series nodes
• D. 3 x NL-Series nodes using SynqIQ to 3 x NL-Series nodes

Answer: A

NEW QUESTION 28
A system administrator has identified a problem on the cluster and has opened a service request on support.emc.com. They initiate isi_gather_info but it is taking a long time to complete.
What can they do to speed up the completion of isi_gather_info for the next run?

• A. Collect the required logs from the syslog server
• B. Restart the CELOG daemon
• C. Increase the speed of the network link
• D. Exclude the specified tool(s) from being gathered

Answer: C

NEW QUESTION 29
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