EMC E20-816 Actual Free Exam Questions & Community Discussion

A customer plans to deploy Oracle on their new EMC VMAX. They are concerned about the performance of the redo log files. You recommend isolating these files to their own set of disks and deploying them on striped metavolumes. Why would you recommend striped metavolumes?

Click on the calculator icon in the upper left corner. Refer to the exhibit.

You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday thru Friday as shown in the exhibit. During an average business day, the transaction log processes 43 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS, when calculating for the database writes?

A company is in the process of setting up a VMware vSphere 5.0 ESXi host. Which power management setting should be set on the physical host BIOS that the ESXi hypervisor will be installed on?

A company is considering different options in the storage placement of a VMware vSphere
5.0 swap file. When considering placement options, what type of storage would vMotion performance be reduced via the placement of the swap file in that location?

During monthly loads of a data warehouse, the customer observes significant increased response time on their OLTP database. Both applications reside on the same tier-1 storage and are replicated using the same SRDF/S links. During these high utilization periods, which tool can be used to give preference to servicing the OLTP database I/O?

What does basic Symmetrix performance knowledge allow you to do?

A customer needs to collect performance data from the HP-UX hosts in the environment. Which collection utility is used?

The customer is looking to deploy a large SQL environment to a ESXi cluster. The main I/O Load of the environment will be OLTP, with a high rate of transactions. Which Raid Type should this environment deploy?

Which change in a Symmetrix VMAX workload will typically result in a decrease in the hit rate?

Refer to the exhibit.

A customer has four Symmetrix logical volumes assigned to a host for a specific application. The Symmetrix has FAST enabled and configured for performance management. Which Symmetrix logical volume will be the first swapped to a higher performance tier?

A customer is implementing Replication Manager to create local clone replicas of their SQL database on their VMAX array. The customer is concerned the RM replica jobs may run for an extended period of time and could cause resource conflicts with other production applications. How can the customer best minimize the impact of the RM replica jobs on the array?

When selecting Symmetrix data protection on an existing VMAX, why would you propose In-Frame erasure?