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EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:
1. What is the minimum size and the maximum size, respectively, of a single pre-Gen 6 node pool?
Response:
A) 3 and 144
B) 4 and 144
C) 4 and 288
D) 3 and 288
2. You are sizing an Isilon Gen 6 cluster for a small organization that is concerned about the availability of the journal during an extended power outage. What is a consideration when sizing?
Response:
A) Journal needs to be protected by an external UPS
B) Battery life within each node is a limiting factor
C) Journal is replicated to all nodes within a chassis
D) Journal is written to nonvolatile storage if power is lost
3. A customer plans to replace an existing array that is supported by the MiTrend Workload Profile Assessment (WPA) service. You receive performance data from the customer and run a WPA report that shows the array has 50TB of usable capacity.
In discussions with the customer, you learn the content is comprised of four million 6MB files and 400 million 64KB files. The customer explains they have a small budget and very limited rack space available in their datacenter. Performance is not a concern because the files are rarely accessed.
Which configuration provides the needed usable capacity using N+2:1 protection, and requires the least amount of rack space?
Response:
A) 3 x X400 nodes with 1TB Drives
B) 5 x X200 nodes with 1TB Drives
C) 3 x NL400 nodes with 2TB Drives
D) 6 x X200 nodes with 1TB Drives
4. A customer has two Isilon clusters in an Active-Passive setup. The customer has latency sensitive media editing workflows. Most of the media editing work occurs prior to broadcasting between 7:00-8:00, 11:00- 12:00, 17:00-18:00 and 19:00-20:00.
What should be recommended to minimize the risk of including latency to the client workflow?
Response:
A) Create and set a custom job impact policy that would exclude the running SyncIQ policies during the given hours.
B) Retain the default job impact policies that would run the Job Engine jobs. Run SyncIQ policies during the given hours.
C) Retain the default job impact policies that would run the Job Engine jobs. Do not run SyncIQ policies during the given hours.
D) Create and set a custom job impact policy that would exclude the running of the Job Engine jobs. Do not run SyncIQ policies during the given hours.
5. 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.
The customer provides the following environment summary from the engineering firm's recently departed IT staff:
- 20 TB of Home Directory data
- 100 TB of active CAD projects
- 400 TB of archived data stored on tape at an offsite warehouse
Which configuration changes would you recommend for the Engineering users?
Response:
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) Create an FQDN for the Isilon cluster in the LMHOSTS file for each engineering system.
D) Utilize SMB2.1 protocol and mount to the Isilon cluster using the Name Server (NS) record IP.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: A |


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