Analyzer indicates that a LUN has a Queue Length of 2.3 and an Average Busy Queue
Length of 5.1, and that Average Seek Distance is 25 GiB for the 300 GB disks used in the
RAID Group.
Based only on these findings, which statement is true?

Replication Manager (RM) is being used to create replicas for a SQL server installed on
VMFS residing on an ESX server. The operations are sent from a separate virtual RM proxy
host. However, the RM is not able to successfully create copies.
What is the most likely cause of the failure?

Your customer would like to replicate their Oracle database between their two data centers.
The data centers are located approximately 1500 km apart.
Which array-based solution is best suited to replicate their database?

You have designed a VNX for File implementation for a customer data environment that
involves a high level of data duplication. The customer is concerned with disk efficiency, and
you have designed the system with the minimum number of disks necessary to meet
expected storage needs after deduplication.
The customer is initially pleased with the implementation. The decision is made to add a
cycle of SnapSure Checkpoints for backup and recovery purposes. Within weeks,
deduplication automatically aborts.
What would you recommend to get deduplication working again?

You are designing a VNX for Block solution for a customer. The application is a high
througEMCut OLTP and will require the use of a volume manager to combine multiple LUNs
across multiple SPs. Each of the component LUNs resides on a RAID 5 (4+1) RAID Group.
Based on best practices, which volume manager stripe element size would you recommend?

An Oracle database is stored on an EMC VNX storage array and replicated to a second VNX
array at a DR location. EMC RecoverPoint is providing the replication. The customer is
currently using a single Consistency Group for the Oracle database.
What would you recommend the customer do to ensure optimal recoverability?

A customer has a mix of Windows 2003 and Windows 2008 virtualized guests deployed in
their vSphere v4 environment. They have purchased a new VNX array and are also
upgrading their ESX servers from V4.0 to V5.0.
Their VMware administrators are creating the new target LUNs and VMFS file systems for
their datastores. They have noticed that the alignment offset on the new array is not the
same as their old array, so they are concerned about disk crossing on the new array.
How would you respond to the customer?

A customer has deployed a legacy application on their VNX storage system that is
configured with NL-SAS drives. They are considering adding an application to this array.
They have reviewed the analyzer file and told you that the NL-SAS disk queue length is 8.
What advice would you give them?

Your customer has implemented FAST Cache and FAST VP in their application
environment. They have been monitoring drive performance, and have noticed that their
Flash drives display increased latency as they become full. Which process can cause the
slowdown?

A clone source LUN is 1 TiB in size. It performs 450 random 8 KiB IOPs with a 2:1 R/W ratio.
As part of ongoing testing, the clone is fractured for five minutes and then resynchronized.
The testing is performed every hour. How much data (to the nearest GiB) is read from the
source LUN as part of the resynchronization process?