E20-880 Online Practice Questions and Answers

A company has added a large number of users to a VMware VDI deployment. The users are complaining that the system (VNX-Block) is slow, especially when they start their shift. You have been tasked to provide an economical solution. Which technology would you use to improve performance?

A. FAST Cache

B. FAST VP

C. FAST

D. Fast VPN

You are working with a customer that recently refreshed their hardware with a VNX storage system configured with Flash drives. During this swap customer also migrated their Exchange 2010 environment to the VNX. Now the customer is claiming that they do not see any performance improvement with their Exchange environment.

What is your explanation?

A. Exchange 2010 was deployed in FAST VP.

B. Database and log files are in the same FAST VP.

C. FAST Cache is not enabled on log volumes.

D. Thin LUNs were not 100% pre-allocated in FAST VP.

A company has two data centers. They run multiple Exchange servers in each data center in a virtualized environment. The Exchange Admin would like the storage for each Exchange server to be configured to provide the most flexibility for migrating virtual machines between physical servers. VSS tools for application consistency compatibility needs to be maintained.

How should the storage for the Exchange virtual machine be allocated to the hypervisor?

A. Place the Exchange databases and logs on RDMs. Place the boot device for the VM on a VMFS volume.

B. Place the virtual machine files and exchange data files on a single VHD to allow maximum portability and failover.

C. Configure the DAG to save and restore its state when taken offline or moved.

D. Place the virtual machine files, database, and log each in a separate VMFS.

Your customer has a VNX array with FAST Cache licensed with a single storage pool created.

They currently use the Storage Pool for their general production environment, but would like you to design an environment that will support their Exchange 2010 deployment. There is sufficient free space in the Storage Pool to accommodate

their Exchange storage requirements.

Based on EMC best practice guidelines, which design would you recommend?

A. Enable FAST Cache on the existing Storage Pool. Place the database volumes on the existing Storage Pool. Create a second storage pool for the log volumes.

B. Place the database and log files on the existing Storage Pool. Enable FAST VP. Increase the array Write Cache value.

C. Create a new Storage Pool. Place the database and log files on this new Storage Pool. Enable FAST VP.

D. Enable FAST Cache on the existing Storage Pool. Place the log volumes on the existing Storage Pool. Create a second storage pool for the database volumes.

You designed the disk layout on a VNX storage system for a large client. They have a very large amount of basic file data consisting of Word documents and text files. The data needs to be accessible but sits for long periods of time without activity.

You decided to place this data on a thin LUN and compress it to maximize capacity. The client is concerned about how much capacity they will reclaim with compression.

Based on the data that is going to be placed on the compressed LUN, what compression ratio will the client typically see?

A. 2:1

B. 3:1

C. 4:1

D. 8:1

Refer to the exhibit.

Which process is illustrated in the exhibit?

A. FAST Cache warmup

B. FAST VP slice relocation

C. FAST VP policy change

D. FAST Cache writeback

A VNX block-only customer is requesting a performance evaluation of their array. The storage administrator asks you what files you will need to perform the assessment. The customer does not have Analyzer licensed. How do you respond?

A. Request the .naz files and SP collects

B. Request the .nar files and SP collects

C. Request the CCC output from the collect_config script

D. Request the .nar files and server_stats output

In designing a disk layout with multiple disk types, which metric should be used for data locality?

A. Seek Distance

B. Queue Length

C. Response Time

D. Utilization

You are being asked to help a customer that is having issues with their new OLTP application that they have just connected to their existing VNX.

The OLTP Administrator has created a 2 TB pool LUN on 8 NL-SAS drives in a 6+2 raid 6 configuration. The customer does not have the budget to purchase more hardware this quarter but does have a mixture of SAS and NL-SAS drives you

can use.

What configuration would you recommend to the customer?

A. Raid 1/0 on SAS drives

B. Leave the data as is

C. Raid 6 on SAS Drives

D. Enable FAST Cache on the pool

Which is an EMC Best Practice when configuring the High Bandwidth option for Pool LUNs?

A. This option is unsupported for Pool LUNs.

B. Use with LUNs in multi-tier storage pools.

C. Limit use to VNX File OE LUNs.

D. Use only with RAID 5 single-tier storage pools.