EMC Dell PowerScale Design v2 - D-PSC-DS-01 Exam Practice Test
Question 1
Which factor most influences protection overhead when designing a PowerScale solution for small-file workloads?
Correct Answer: B
Question 2
Your customer's initial use case was Home Directories. They implemented the cluster with four 1Gbps ports and LACP. They are planning to expand their cluster to support their core file services. They plan to upgrade their network infrastructure to 10 GbE to facilitate this.
What are two design impacts this change will have?
What are two design impacts this change will have?
Correct Answer: D
Question 3
An Isilon storage administrator is concerned about capacity after ingesting 200 TB of file dat
a. 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?
a. 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?
Correct Answer: C
Question 4
Which SmartConnect policies are recommended for workloads with short-lived connections, such as HTTP and FTP?
Correct Answer: B
Question 5
A customer needs to be able to periodically monitor their node live performance for ongoing operational tasks as well as during problem analysis. You have recommended they use the isi statistics command to fulfill this need.
What types of statistics and statuses could be displayed with this command?
What types of statistics and statuses could be displayed with this command?
Correct Answer: A
Question 6
Where does SmartCache stage its write cache?
Correct Answer: D
Question 7
Refer to the exhibit.
Your customer has three different clusters. File systems on two of the clusters are at 90% full, and the largest cluster is 10% full. Active data resides on the largest cluster. The customer has five different node types totaling 2PB and 54 nodes. Nodes from left to right are as shown: 1. X200 2. 12000X 3. 36000X 4. NL108 5. 108NL They have a Smartpool license and believe that tiering data would help free up needed space. After talking with the customer and explaining the use of SmartPools, how would you recommend optimizing utilization across all of the nodes that the customer owns?
Your customer has three different clusters. File systems on two of the clusters are at 90% full, and the largest cluster is 10% full. Active data resides on the largest cluster. The customer has five different node types totaling 2PB and 54 nodes. Nodes from left to right are as shown: 1. X200 2. 12000X 3. 36000X 4. NL108 5. 108NL They have a Smartpool license and believe that tiering data would help free up needed space. After talking with the customer and explaining the use of SmartPools, how would you recommend optimizing utilization across all of the nodes that the customer owns?
Correct Answer: A
Question 8
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?
What job for InsightIQ should the administrator modify to successfully report these statistics?
Correct Answer: A
Question 9
Which feature of InsightIQ helps administrators optimize cluster workload performance?
Correct Answer: A
Question 10
A customer requires 4 PB of media storage but is concerned about rebuild times of large drives.
How does a PowerScale cluster address this concern?
How does a PowerScale cluster address this concern?
Correct Answer: B
Question 11
While validating the value (VTV) with a large educational customer, they have decided they would like to add a Disaster Recovery (DR) site to their existing Isilon environment. The existing cluster contains six X-Series nodes.
They plan to have all workflows replicated to the DR site and both clusters will have identical shares, exports, and user authentication. The customer would like to test DR failover every six months by running their production environment from the DR site.
What would you recommend for the DR solution?
They plan to have all workflows replicated to the DR site and both clusters will have identical shares, exports, and user authentication. The customer would like to test DR failover every six months by running their production environment from the DR site.
What would you recommend for the DR solution?
Correct Answer: A
Question 12
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.
Which cluster configuration would you recommend?
Which cluster configuration would you recommend?
Correct Answer: D
Question 13
What role does SmartConnect play in a PowerScale environment?
Correct Answer: A
