EMC E20-880 Actual Free Exam Questions & Community Discussion

Your customer has implemented FAST Cache and FAST VP in their application environment. They have been monitoring drive performance, and have noticed that their Flash drives display increased latency as they become full.
Which process can cause the slowdown?

You are in a design session with a customer of an ESXi 5.0 cluster. One of the stakeholders inquires about vNUMA.
By default, what is the minimum number of CPUs in a vNUMA enabled environment?

Refer to the Exhibit.

A VNX Administrator is monitoring the workload and is considering adding a few flash drives. Based on the workload shown in the illustration, what would be the outcome of adding these drives?

You have designed a VNX for File solution for a creative content provider. The solution involves 10, 2 TiB file systems. Each file system has a Checkpoint taken every hour, refreshed every day. The customer predicted a 2% daily change rate, and SavVol storage was allocated based on that change rate.
Sometime after the implementation, the customer notices that some of the older Checkpoints are disabled.
What is the most likely explanation?

A customer has recently virtualized an Oracle database on a VNX system. Initially, performance was satisfactory. Now, with more usage there is some performance degradation. You used Analyzer to check the backend and did not see any problems.
Which VMware best practice would be easiest to resolve the issue?

What is the main reason MirrorView/S has a lower effect on CPU utilization compared to MirrorView/A?

What factors can be used to determine the number of IOPs per desktop that a VNX will need to satisfy during the boot of a virtual desktop?

You are migrating a backup application that runs on physical servers to a VDC. The VDC storage is currently a VNX configured with NL-SAS drives only. Your customer is concerned about the cost to achieve reasonable performance. You are designing the VMs that will support the application.
Based on cost, which would be the first solution you would recommend?

You are conducting an analysis of a Celerra system to migrate the data to a new VNX Unified storage system. You want to collect statistical information about CIFS file system activity.
Which "server_stats" statistic type would you use to get the desired information?

A VNX storage system is being configured to provide storage for an Exchange 2010 implementation for 2,000 users. iSCSI will be used for connectivity between the servers and the array. Each server has two, dual-ported NICs.
Based on EMC best practices for availability and redundancy, how should the interconnectivity be configured?

A customer asks about the High Bandwidth option for a data warehousing application. The customer would like to know the benefits of implementing this feature. How do you respond?

A customer has implemented your VNX for File design for a high-performance CAD/CAM application. The design specified several NFS clients, each accessing a single file system in a single-threaded manner. You need to guarantee that each file system resides on an exclusive LUN set.
Which value would you change?