which configuration best assigns the workloads?
Your customer has a new VNX solution configured with Flash, SAS, and NL-SAS drives. The
customer requires their DSS, VDI, Software Development, and Regulatory Compliance
workloads to be distributed between the different drive types. Due to limited drive quantities
only one workload type can be configured using Flash drives. According to best practices,
which configuration best assigns the workloads?
how many Consistency Groups are required to provide application consistent recovery?
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.
According to best practices, how many Consistency Groups are required to provide
application consistent recovery?
What is the best way for the customer to reclaim some of the capacity on the thin LUN?
A customer has placed their user data, consisting of text, Word, and Excel files, on a thin
LUN created from an existing pool. The thin LUN is reaching capacity and cannot be
expanded over the pool due to capacity constraints on the pool.
What is the best way for the customer to reclaim some of the capacity on the thin LUN?
Which Unisphere Analyzer counter would provide the most useful insight into the issue?
An application owner is concerned about the performance of a set of application servers.
The applications generate a large amount of small I/O. Disk and LUN response times appear
to be acceptable for the servers in question. The servers are all Windows hosts using
QLogic HBAs with the default EMC driver settings.
Which Unisphere Analyzer counter would provide the most useful insight into the issue?
Which VMware best practice would be easiest to resolve the issue?
A customer has recently virtualized an Oracle database on a VNX system. Initially,
performance was satisfactory. Now, with more usage there is some performance
degradation. You used Analyzer to check the backend and did not see any problems.
Which VMware best practice would be easiest to resolve the issue?
which solution would you recommend to address their requirements?
A customer wants to use Replication Manager (RM) to create local copies of their SQL
databases. They want RM jobs to complete as soon as possible without any interruption to
the database. They also want to minimize the impact on the storage system. Based upon
EMC best practices, which solution would you recommend to address their requirements?
what is the minimum number of RAID Groups required?
Your customer has recently purchased a VNX to host their three Oracle RAC database
environments and automated payment processing application. The RACs and application
are differentiated as follows: ORA-PROD, ORA-STAGE, ORA-DEV, APP-PROD,
APPSTAGE, and APP-DEV. The customer has provided you with their Enterprise Storage
Policy (ESP) and is requesting that you adhere to this policy when architecting their new
VNX solution. The ESP states the following as it relates to Oracle database storage
requirements:
All LUNs must be configured as raw devices
All LUNs must be managed using ASM
No fewer than two LUNs per ASM disk group
No more than one database per RAC per RAID Group
No more than three databases per RAID group
All data LUNs must be 1000 GiB RAID 5
All FRA LUNs must be 500 GiB RAID 1/0
No more than eight total disks per RAID Group
No fewer than four disks per RAID Group
Based on the ESP, and assuming ORA-PROD has six instances, what is the minimum
number of RAID Groups required?
what compression ratio will the client typically see?
You designed the disk layout on a VNX storage system for a large client. They have a very
large amount of basic file data consisting of Word documents and text files. The data needs
to be accessible but sits for long periods of time without activity. You decided to place this
data on a thin LUN and compress it to maximize capacity. The client is concerned about how
much capacity they will reclaim with compression. Based on the data that is going to be
placed on the compressed LUN, what compression ratio will the client typically see?
What should be your response?
Your customer wants to expand each back-end bus to the maximum of 10 enclosures
attached via an LCC with an edge expander. They are concerned that it will add extra
latency.
What should be your response?
what should be your assessment of the environment?
You are currently investigating a SQL performance issue on a VNX array. You narrow down
the RAID group where the log file resides. You find that the disk response time is 12 ms.
Based on EMC best practices, what should be your assessment of the environment?