E20-357 - Isilon Solutions Specialist Exam for Implementation Engineers
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Which methods of Isilon OneFS administration are enforced by RBAC?
Platform API, command line, and web administration interface
Which Isilon product is recommended where low-latency and maximum performance is a critical factor?
You have scheduled a meeting with a prospective customer in the Life Sciences vertical market. Which Isilon features should be presented to them?
SmartPools, HDFS, 10 GigE support and SmartQuotas
When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?
How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
A customer is looking for a NAS solution to support their read-intensive application. This solution must meet the following requirements: · 1000 users · Aggregate bandwidth of 5 GB/s · 500 TB of user data · Typical latency of 5 ms. The files are distributed evenly across 10 directories. Which cluster configuration would best meet these requirements?
Eight X400 (96 TB) nodes with 1.6 TB SSD
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?
Storage will be four times as large
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?
Use Access Zones for each domain
Which block size does Isilon SyncIQ use to transfer data?
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?
Change priority to 4 and job impact to Medium for FSAnalyze
An Isilon customer would like to have different snapshot policies and schedules on the same directory. Why is this possible on an Isilon cluster?
SnapshotIQ snaps at the directory level not the volume level
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?
How many concurrent clients are accessing your NAS?
A customer wants to add Unix users to their cluster, and requires that NFS access be fault- tolerant. What would you recommend?
Use NFS v3 and dynamic IP addressing with SmartConnect Advanced
If a customer has 10 nodes in a cluster with N+2 protection, what is the minimum number of nodes required to be online and in communication with one another to satisfy quorum?
When configuring Isilon SmartConnect in a customer environment, which records are required for a supported implementation?
SmartConnect Service IP host record and a zone delegation for the SmartConnect zone delegated to the SSIP
Which Isilon job has a default priority of '1'?
On Isilon node, where is caching for disk blocks staged?
How can an Isilon cluster simplify a Hadoop workflow that analyzes large amounts of log data written to storage using FTP and where results are viewed by Microsoft Windows clients?
FTP, SMB, and HDFS NameNode and DataNode protocol support on the same file system enables each workflow step to access data from the same location avoiding data migration.
A customer is interested in deploying InsightIQ into their Isilon environment. How is InsightIQ installed?
Deployed as a virtual appliance
By default, how much space needs to be reserved for snapshots on an Isilon cluster?
0% of the cluster
You have just completed the installation of a cluster. What is a recommended step to check network connectivity?
Ping each individual node.
How many snapshots can be created at the directory level using Isilon SnapshotIQ?
A customer created one month of snapshots consisting of one snapshot every 8 hours for 30 days on an Isilon cluster using SnapshotIQ. The customer is now deleting the snapshots randomly and is experiencing overhead to the cluster. How can the customer remove the snapshots and avoid the overhead caused by the process?
Delete the snapshots in order
You are assisting a customer with creating an Isilon solution that will address their needs while remaining cost-effective. The customer environment consists entirely of archive data. The data in their enterprise produces very little I/O and is only occasionally accessed. Which Isilon storage node type will meet the customer's needs?
You have just added a node to a cluster. What is the minimum time recommended to wait before adding the next node?
When configuring Dynamic IP Address Allocation in Isilon SmartConnect, which policy setting needs to be determined?
Which protocols are supported by Isilon OneFS for file access?
NFS, HDFS, HTTP, SMB
Which node type adds CPU, memory, and Fibre Channel connectivity?
Backup Accelerator node
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 the customer's environment. sets. You have been asked to perform a full discovery of 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 What would you recommend be done to consolidate the three clusters into one? · Leave the clusters as is
· Consolidate the remaining two clusters using SyncIQ · Build a new cluster for consolidation
A customer is planning an Isilon deployment for use with their Hadoop environment. What is one advantage of using Isilon as the HDFS layer in this instance?
Facilitates independent scaling of compute and storage nodes
A customer is considering moving their NAS data over to Isilon systems. They want to know what limitations Isilon has regarding snapshots. What explanation can be provided to the customer?
No hard limit on snapshots
What is the maximum volume or aggregate size that can be created with an Isilon Scale-Out NAS system?
Which protocol does Isilon OneFS integrate with to provide on-access file scan functionality?
If a client is mounted to the sixth node in a 20-node Isilon cluster, how much memory cache can that client leverage assuming each node has 8 GB of memory cache?
When using an N+2 protection policy on a 5-node Isilon cluster, how much capacity will be used to store a 1024 KiB file?
A customer is trying to get Isilon SyncIQ to run on the two clusters they just purchased. However, they are experiencing some problems. They have asked you to explain how the SyncIQ licensing works. What information can be provided to the customer?
SyncIQ license is required on both the source and target clusters
What does Isilon OneFS use to translate identities independent of protocol?
ID mapping stack
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 What steps need to be taken on the clusters to meet the customer requirements?
Consolidate three clusters into one, expand to meet existing performance and needed capacity by using SyncIQ to migrate data from existing clusters. Use Access Zones to segregate tenants
Which impact policies are available on an Isilon cluster?
High, Medium, Low, Paused
In an Isilon cluster, what is the relative latency of a cache hit to L1 cache versus L2 cache?
Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your follow-up discussions have uncovered an opportunity to expand the cluster to support the Legal Department. As you prepare to complete the Workflow Profile Document, you meet with the customer to discuss data protection.Which key areas should you address?
Default cluster protection level Additional directory level protections Snapshots and replication
An Isilon customer expressed an interest in more effectively managing their storage. Specifically, they would like to see performance improvements. Which tool would allow them to improve the performance of workflows on their cluster?
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. The customer would like information about the possibility of setting protection levels on the target cluster. What information can be provided to the customer about the protection level for the target directory?
Configured separately on the target cluster and does not need to match the source
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?
You are asked to size a cluster for a file sharing environment. nfsstat indicates that 75% of the requests are namespace operations (e.g., GETADDR, SETADDR). There will be 8,000 active Linux users, connecting over NFS?
Eight X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
An Isilon customer has an environment with very different workloads. They would like to assign clients to performance tiers based on the resources needed. Which software functionality can be used to meet this requirement?
Click on the calculator icon. 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?
Ask them to identify how the current data is accessed, where the data is accessed from, and who is accessing the data
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 3 hours and that the job finishes within 1 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 potential customer requires 800TB 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 planning to deploy a scale-out NAS solution from a competitor of EMC. Which factors can demonstrate a lower TCO using Isilon?
An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors Isilon linear scalability eliminates over buying and over provisioning
Your customer has a new business unit. They are gathering web log files to be analyzed. They are using Hadoop to do the analysis of the logs. The IT department is centrally storing the log files on a five node Isilon cluster. They have enabled the Hadoop cluster to access the files directly. The nodes are X400's with two SSD drives in each node and 96GB of RAM. How many DataNodes does the Isilon Cluster have?
Which Isilon job periodically validates the checksum of every block in the file system?