You are designing a Data Protection Advisor (DPA) solution for a customer. As a part of the
engagement, you are required to configure the DPA stores. What is the minimum size you would
recommend for configuring the stores?

—A customer wants to know why their backup performance to an EMC Avamar multi-node server
has decreased. Initially they were seeing an ingest rate of approximately 5 to 7 GB/hr/node.
Recently they estimated that the ingest rate has slowed to around 3 to 5 GB/hr/node.
What is a probable cause for the decrease in the average ingest rate?

You are designing a backup solution for an EMC NetWorker customer. Given a conservative
estimate, how many CPU cycles are needed by the storage node when backing up clients over the
network to local tape drives at a rate of 100 MB/s?

A customer’s environment consists of the following:
Linux servers with an Oracle database
Microsoft Windows with SQL
Full weekly backups for Oracle with a one-month retention period
Dairy incremental with a two-week retention
Full weekly backups for SQL with two retention periods
You collect the information in order to determine the capacity needed for an EMC Data Domain

solution. Which calculation will show the best trade-off between retention and compression?

An EMC NetWorker customer is experiencing poor backup performance. Your analysis determines
that significant host resources are used to manage low-level network handshaking operations
during backup.
Based on EMC recommendations, what can be done to alleviate the handshake issue?

A customer has a new EMC Avamar server with four 3.9 TB data nodes. This server is backing up
two Avamar clients. The first client has 10 GB of RAM and two file systems. The first file system
has 2 million files consuming .75 TB. The second file system contains 3 million files consuming 1
TB of space. The second client has 8 GB of RAM and one file system containing 4 million files is
consuming 1.2 TB of space. Both clients will belong to the same backup group.
How long will the steady state backup group be expected to run?

A customer is planning a new database rollout using Oracle and wants to perform online backups.
Initial tests with EMC NetWorker have shown that the backups cannot be completed within the
backup window of six hours.
You have analyzed the backup environment and there are adequate resources to meet this
backup window. What is one of the first things to check in NetWorker or RMAN to increase
performance without adding cost and complexity?

You are redesigning an EMC NetWorker customer’s backup solution. Currently all file system
clients are backing up to an EMC Avamar deduplication node The customer wants to add another
Avamar server and back up some of the larger clients to the new Avamar deduplication node.
What is the impact of this decision?

When sizing an EMC Avamar or Data Domain solution, what are important challenges that should

be taken into consideration?

A customer is considering EMC Avamar for backing up servers in their remote offices. Currently
they are facing WAN capacity issues and the backup of their Microsoft Exchange server at the
primary site is critical. Which type of Avamar solution is suitable for the customer’s environment?