E20-818 Exam Questions

A customer has three data centers that they use to run Concurrent SRDF/Star. All links between the workload and synchronous target site become temporarily unavailable. When do they...

A customer needs to comply with data-at-rest security on a server connected to a Symmetrix. Which security feature will satisfy those requirements?

A Symmetrix V-Max is shared between a customer's sales and engineering departments. The customer has the following requirements: 1. A specific user from the sales department should...

During an initial implementation of symacl, the service processor was set up with an administrative group. In addition, an access ID PIN was entered on the Symmetrix. What is the n...

A customer wants to implement FCID lockdown on a server with a Symmetrix DMX-4. You display the HBA information illustrated. What is the correct command to set up a FCID lockdown?

The command shown was entered from a host with symacl Admin privileges. After completing the preview step to create an access pool, the commit step fails. What is a potential cause...

Which type of security information can be obtained by using the symconnect -sid 6208 -list command?

You are analyzing a performance problem using the total host queue and the I/O transmission times. Which measure can be derived from these two metrics?

A customer is using Performance Manager to analyze one of their applications. The application that is being analyzed has almost no writes and an extremely high read hit ratio. Whic...

During a performance analysis of a Symmetrix array, you discover that the front-end director CPUs are all heavily utilized even though the overall throughput for the array is low....

Which type of read workload produces the worst Symmetrix cache performance?

Which change in a Symmetrix array's workload will typically result in an increase in the read hit rate?

During a performance analysis, you notice that a group of Symmetrix devices has a front-end I/O EMC E20-818 Exam rate that is much higher than the back-end I/O rate. What is a poss...

You are planning to fill a large Symmetrix V-Max array with 15,000 rpm Fibre Channel drives and 7,200 rpm SATA drives. How can you ensure that every back-end director manages just...

Which performance issue can be caused by Symmetrix sector misalignment?

What is a best practice when migrating applications from traditionally provisioned LUNs to virtually provisioned (thin) LUNs?

On a Symmetrix V-Max, what is the minimum number of devices that could cause the system write- pending limit to be reached as a result of reaching its device write-pending limits?

You have determined that a Symmetrix device is consistently reaching the write-pending limit. What would you recommend to resolve this problem?

A customer wants to take advantage of Enterprise Flash Drive technology with their upcoming disk purchase. However, the customer is unsure where the best fit would be for the new d...

A customer needs to move a large amount of data from a standard device on a Symmetrix DMX to a new Symmetrix V-Max with SRDF Adaptive Copy Disk. On the current source DMX, cache an...

A Symmetrix V-Max array is configured with RAID 1 and RAID 6 (14+2) devices. In order to implement Symmetrix Optimizer, which types of devices need to be configured?

A Symmetrix V-Max array running Enginuity 5874 is used to store data for four applications. Each application uses devices of a different size (10 GB, 12 GB, 16 GB, and 20 GB). Symm...

A customer uses Symmetrix V-Max arrays for a number of applications. Some of the applications are replicated with SRDF/S. They would like to implement Symmetrix Priority Controls (...

Flexible Dynamic Cache Partitioning has been implemented on a Symmetrix V-Max array. Monitoring of the partition used by the mission-critical application shows that the cache utili...

What are the two ways open systems use disk storage?

Which event requires an unplanned switch of the production workload?

What is the major advantage of SRDF/Star over other types of SRDF replication?

What describes a Microsoft two-node cluster environment within an active/active configuration?

Which Symmetrix unit generates a CRC for Open Systems?

What is the amount of workload skew in Performance Engineering tests?

You are designing a SQL database layout for a VDI-based backup solution with Symmetrix TimeFinder. There will be more than one database on a single Symmetrix volume. Which consider...

A customer has a mission-critical Microsoft SQL Server environment on Symmetrix DMX storage. They are using the SRM feature of the Solutions Enabler suite to freeze and thaw I/O as...

A Microsoft SQL Server database administrator wants to execute backups using Solutions Enabler EMC E20-818 Exam SRM functionality. Which ODBC variable(s) needs to be set to enable...

A customer wants to use Replication Manager to replicate and mount, at the file group level, a Microsoft SQL Server database. What must be done before creating a Replication Manage...

In the event of a physical disk spindle failure, how would a customer with Microsoft SQL Server maximize availability?

A customer's SQL database has been experiencing performance degradation every time a particular query is run. When designing the storage layout, all user databases were properly si...

Click the Calculator icon in the upper left-hand corner. A customer is migrating their SQL server from a NAS back end to a new RAID 1-protected Symmetrix V-Max SE array. Perfmon wa...

You are having a discussion with a customer about moving a Microsoft SQL Server database onto a set of Symmetrix devices. Which SQL Server objects must be moved to ensure the datab...

A customer is deploying TimeFinder/SQL Integration Module (TF/SIM) to create local replicas of Symmetrix devices that hold their production Microsoft SQL Server 2005 databases. The...

TimeFinder/SQL Integration Module (TF/SIM) was configured for a customer several months ago. Recently, the customer experienced a corruption to one of their production databases na...

A customer upgraded their Microsoft SQL Server 2000 environment to SQL Server 2008. The customer had been using Replication Manager to create local and remote replicas of the datab...

A customer wants to create a Microsoft SQL Server local recovery solution within a Symmetrix V-Max environment for backup purposes. In addition, the customer wants to automate the...

What is the finest level of backup granularity provided by Replication Manager for Microsoft SQL Server?

You are having a discussion with a customer about Replication Manager. The customer wants to create a replica of their Microsoft SQL Server production database. In addition, the cu...

A customer has a large Oracle database with their Redo Logs and data files located on two local Symmetrix arrays. Due to availability requirements, the customer wants to prepare a...

An Oracle customer has purchased a new Symmetrix V-Max array with a large number of Enterprise Flash Drives (EFD). However, they still need to place part of the database on traditi...

An Oracle Automatic Storage Management (ASM) disk group consists of two 50 GB LUNs and is currently in use. The customer requires more space for their Oracle database and has been...

A customer wants to replicate an Oracle database (Ora-A) residing on five devices that are part of a Veritas disk group. The Veritas disk group has 20 devices defined and contains...

When adding or removing devices from an Oracle 11g ASM disk group, what must be considered to ensure replicated copies will be in a restartable state?

A customer has an Oracle 10g database with TimeFinder/Mirror producing local nightly replicas. They currently have their entire database on a single LUN and they replicate the enti...