A customer runs a CAD/CAM application on an EMC VNX for File. The application is accessed by users at multiple sites. The users report degraded response during peak access periods.
Performance monitoring of the file system shows a higher than expected disk queue length and a higher than expected number of unused blocks pre-fetched. What is the likely cause of the performance issue?
A. Multi-threaded sequential reads causing random access patternsA customer has an EMC VNX dedicated to an SQL Server environment. They report performance issues. You notice there is frequent forced flushing on the VNX. What action can they take to correct this without adversely affecting performance?
A. Disable write caching for all databasesA customer has the following virtualized environment:
?One EMC VNX providing thin LUNs to a VMware ESX v4.0 host ?Five VMs running critical OLTP systems supported by one or more databases.
The customer previously experienced some out-of-space conditions due to VMDK oversubscription. You recommend they upgrade their virtual environment to vSphere v5.0 to benefit from its VAAI features.
Which VAAI primitive addresses their issue?
A. Block ZeroingYou are planning fracture granularity for SnapView Clone operations. What is the transfer size used to track updates to a 1 TB Source LUN?
A. 64 kBA customer has vSphere v4.x hosts connected to an EMC VNX with thin provisioned pools. They report capacity shortages even after deleting or migrating some VMs. You recommend the customer upgrade their virtual environment to
vSphere v5.0 to benefit from the new features and enhancements in VAAI.
Which VAAI feature will address their issue?
A. Dead Space ReclamationA customer is planning a CIFS DR test on a VNX. They want to ensure that all production users will be able to access data at the target site in the event of a catastrophic failure at the source site. The source site will remain online during this test.
How can this be accomplished?
A. Replication switchover from the source siteA customer plans a DR test for their CIFS DR solution using EMC VNX. The customer needs to confirm users will be able to access data at the DR site in the event of a source site disaster. The VNX at the source site will not be shut down during the DR test. The customer asks how they should proceed. What do you advise the customer?
A. Perform a Replication Switchover operation from the source VNX.The SQL database and transaction logs have been physically isolated on separate RAID groups. What other actions can be taken to optimize SQL performance?
A. Use RAID 1/0 for transaction logs only.An EMC VNX with FAST Suite will be used as block storage for a mail environment with four Exchange 2010 servers. The Exchange servers will serve as mailbox and archive mailbox servers. The VNX has the following disks in two DAEs:
-Five 200 GB Flash drives
-Fifteen 600 GB SAS drives
-Ten 2 TB NL-SAS drives
What storage pool design will provide balance between performance and storage provisioning?
A. Database pool LUNs should be thin provisioned; log pool LUNs should be thick provisioned.When deploying a RecoverPoint/SE solution using vRPAs, which connectivity method is used by the vRPAs to access the replication volumes?
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