Online Access Free E20-880 Practice Test

A customer is trying to determine the correct configuration for an application they are planning to run on a VNX. The application consists of a heavy transactional workload with high (greater than 30%) random writes.
Which drive type and configuration would you recommend to the customer?

• A.15k SAS Drives in a Raid 1/0 configuration
• B.10k SAS Drives in a Raid 5 configuration
• C.10k SAS Drives in a Raid 1/0 configuration
• D.15k SAS Drives in a Raid 5 configuration

A customer has implemented MirrorView/A.
What determines the upper limits for MV/A performance?

• A.Primary storage ability to perform CoFW
• B.Limited transfer rate
• C.Secondary storage ability to perform CoFW
• D.Latency of a MV/A transfer

If the workload graph shows that most of the Storage Processor load is used to support a small amount of data, what could cause this utilization?

• A.heavy skew
• B.low skew
• C.no skew
• D.moderate skew

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 log volumes on the existing Storage Pool. Create a second storage pool for the database volumes.
• B.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.
• C.Place the database and log files on the existing Storage Pool. Enable FAST VP. Increase the array Write Cache value.
• D.Create a new Storage Pool. Place the database and log files on this new Storage Pool. Enable FAST VP.

Click the calculator icon in the upper left-hand corner.
A clone source LUN is 512 GB in size. It performs 1500 random 4 kB IOPs with a 3:1 R/W ratio. As part of ongoing testing, the clone is fractured for 10 minutes and then resynchronized. The testing is performed every hour.
How much data (to the nearest GB) is read from the source LUN as part of the resynchronization process?

• A.15 GB
• B.54 GB
• C.96 GB
• D.27 GB