You have designed an Auto-tiering solution using Flash, SAS, and NL-SAS disks in your storage
pool. Your design was implemented and scheduling has been running daily. The customer reports
that there is no data in the NL-SAS tier.
Why is this the case?

A customer is concerned about the VNX Unified storage performance. The VNX provides storage
services for variety of Windows and UNIX application servers. When monitoring the switches they
notice heavy traffic between the servers and the storage.
The LUN analysis yields the following results:
$ /nas/sbin/naviseccli -h spa getdisk 1_0_4 -rds -wrts -bytrd -bytwrt
Bus 1 Enclosure 0 Disk 4
Read Requests: 478651
Write Requests: 202813

Kbytes Read: 47457840
Kbytes Written: 6449720
What is the I/O size being used to send data to disk?

You are designing a VNX storage solution for an Oracle database implementation. The VNX is
populated with Flash, SAS and NL-SAS drives. The customer has asked you to recommend the
optimal disk layout for the Oracle Automated Storage Manager instance disk group.
Which recommendation best conforms to EMC best practices?

Your customer has a Microsoft SQL installation on a VMware guest Windows 2008 Server using
VMFS. The ESXi server uses a VNX system. The VMFS has been properly aligned with the
physical disk.
What would you recommend to your customer to avoid misalignment between a partition used by
the Windows 2008 Server and the underlying physical disk?

A VMware Administrator has received numerous reports from his users about performance
degradation. The administrator believes that your storage design on the VNX is the reason for the
symptoms.
You ask the administrator for an esxtop analysis of the affected ESXi server. When you examine
the report and notice that the value on the Load Average Line is 2.00.
What would you report back to the administrator?

Your customer wants to enable file deduplication on an existing data-populated VNX for File
system, based on the following specifications:
Moderately busy file system scanrate:500 files per second
Moderately busy file system ingest scanrate:5 MB/sec
Number of files: 1 M
Average filesize:50 KiB
Estimated deduplication: 30%

How long will the initial deduplication take to complete?

A VNX customer has several users on their CIFS share, which is also used for
dedupe/compression. In addition, replication is in place with checkpoints on both ends to handle
backup needs.
Since dedup was activated a few days ago, all changed blocks that the dedupe process flags to
eliminate from the primary FS get copied into the SavVol. Now, deduplication has been aborted.
What could have caused this to happen?

Your customer has a single threaded legacy application with a sequential write workload. They are
currently performing a storage technology refresh. They ask you to architect a solution using VNX
systems configured with NL-SAS, SAS and Flash drives.
Which drive and RAID protection should they use for the legacy application?

A VMware v4 customer is considering consolidation of their environment to support their cloud
IAAS (Infrastructure as a Service) initiative on VNX storage. They have a number of customers
interested in deploying clustered application servers, across many varied application
environments, onto this new infrastructure.
What advice would you give your customer to help them formulate their new environment and
minimize their administrative overhead?

A customer is planning to virtualize their current production Oracle environment. To obtain advice,
they hired EMC Application Virtualization Assessment for Oracle. After assessing the environment,
EMC found that the databases consist of large, single server databases with high utilization, and a
small number of application servers with high utilization.
What should be EMC’s response to the customer?