A customer configured an EMC VNX to serve home directories to users. Users report intermittent
timeouts accessing the home directories. While troubleshooting, you observe you can
successfully connect to the file share, and can ping the VNX interfaces. What is the most likely
cause of this performance issue?

A customer asks you to design an EMC VNX for an Oracle database composed of 300 GB RAID 1
and 600 GB RAID 5 (4+1) drives. Which configuration provides maximum usable capacity
balanced with reasonable performance?

A healthcare company uses MirrorView replication between VNX located at their two data centers.
They use the Write Intent Log (WIL) feature on both VNX. There was an outage at the production
data center and production workload was transferred to the DR data center. When then
production workload was failed back to the production data center, the customer found all
MirrorView LUNs completed a full re-synchronization. What caused this situation?

A vSphere ESXi v5.0 administrator receives an alert that a VM (virtual machine) has been paused.
What action should they take to resume this VMs operation?

Click on the calculator icon in the upper left-hand corner.
A client has a storage requirement for an object database. The application is expected to
generate random I/O requests. The I/O profile is:

– 70% random reads
– 30% random writes
– Total host I/O per second is 20,000
– Required usable capacity is 35 TB
The client is concerned about cost, so RAID 5 (8+1) data protection will be used.
What is the minimum number of 300 GB 15K SAS drives needed to meet the client’s performance
and storage requirements, including hot spares drives?

An EMC VNX supports several iSCSI Windows hosts, as well as a home directory structure for
fifty CIFS clients. The iSCSI hosts run an application with an I/O pattern that is 80% writes with a
2 MB I/O size. The customer reports overall write performance is less than expected. Your
examination of the VNX reveals frequent forced flushing. Which recommendation is most likely to
improve performance for the home directory clients?

A customer has DR enabled between their primary and backup sites using EMC VNX and
MirrorView. SnapView Snapshots are enabled at the backup site. A third VNX array is installed at

the backup site. The customer tries to use Incremental SAN Copy (ISC) to pull data updates from
a SnapView snapshot onto stopped Web server LUNs located on the new VNX. The customer
reports they are not able to configure the SAN Copy session.
Why does the customer need to rework this solution?

An Oracle DBA creates a new database and requests a LUN to store the online redo logs. What
is the recommended configuration for this LUN?

A hospital wants to configure a tiered pool on an EMC VNX to support a vSphere ESXi 5.0
environment with fifteen hosts. Which disk layout is supported for a tiered pool?

A DBA wants to create a replicated, recoverable copy of an Oracle 11g database environment that
will reside on a number of EMC VNX target drives.
The DBA performs the following:
– Puts the required tablespaces in hot backup mode
– Issues a checkpoint to the database
– Synchronizes and fractures the Oracle device pairs
– Ends hot backup mode
– Brings the replicated copy online
What action must the DBA take to enable the copy to start up successfully?