Which data protection benefit does Symmetrix Service Credential provide?
Which data protection benefit does Symmetrix Service Credential provide?
What is the page size ESXi assigns to the guest VM?
A company is using VMware vSphere 5.0 and plans to use the Large Memory Page Size option.
What is the page size ESXi assigns to the guest VM?
How should all the devices be configured on the target Symmetrix VMAX storage array?
You are designing a new Symmetrix VMAX storage array to replace a client’s Symmetrix DMX4.
Performance data is captured and examined for the DMX4. During the discovery phase, the client
states that their critical business application has increased response times when establishing
SRDF for 20 logical volumes. Examination of the current configuration of the logical volumes used
for the application reveals the following:
– Ten 4way meta volumes at 200 GB
– Five 8 way meta volumes at 472 GB
– Five logical volumes at 59 GB
Performance analysis shows that the device write pending counts for the five logical volumes at 59
GB are higher than other volumes used by the application.
The client expects migration events to require a complete establishment of their DR environment
logical volumes. How should all the devices be configured on the target Symmetrix VMAX storage
array?
What format does EMC recommend when creating a virtual disk for a Virtual Machine?
You are designing a Symmetrix VMAX Virtual Provisioning solution for a VMware vSphere
environment. What format does EMC recommend when creating a virtual disk for a Virtual
Machine?
What might be the reason for this?
During Symmetrix VMAX performance analysis, you notice that a collection of VMAX devices has
a front-end I/O rate that is much lower than its back-end I/O rate. What might be the reason for
this?
Which metavolume configuration should you use?
You are planning a VMAX configuration with FAST VP for a customer’s Exchange 2010
environment. The customer requests the database be placed on thin devices and the log files be
placed on regular devices. Some of volumes are quite large and will require metavolumes to meet
the capacity requirements.
Which metavolume configuration should you use?
Which RAID level(s) should be used for the control files, data files, redo logs and archive logs?
A new Symmetrix array is being designed for an Oracle data warehouse. The workload is
expected to be primarily reads for batch reporting. The customer wants to maximize usable
capacity of the array and follow best practices for RAID types to optimize performance. Which
RAID level(s) should be used for the control files, data files, redo logs and archive logs?
What VMAX FA port flag must be enabled?
A company plans to deploy Symmetrix VMAX arrays in their VMware vSphere environment. The
ESXi hosts will be connected to the VMAX arrays over a FC SAN. What VMAX FA port flag must
be enabled?
What is the likely cause?
A new EMC customer recently installed their first VMAX and a complete suite of EMC
management tools. Their lead capacity planner attended training and has started monitoring the
VMAX. You receive a call and this person describes the measurements observed. During the
period of heaviest workload, reported I/O rates on certain Fibre Channel ports is nearing
2,000/second but those ports only display about 10% utilization. What is the likely cause?
How should DCP be configured to separate the write-intensive workload from the other applications?
A customer has an environment where one application has a very high, sequential, write-intensive
workload. They would like to use Dynamic Cache Partitioning to isolate this workload from the
other applications. How should DCP be configured to separate the write-intensive workload from
the other applications?