A customer has installed a VNX storage system for their VMware cluster based environment with six ESX hosts. The ESX will be dedicated for MS SQL servers supporting two heavy SQL online transaction processing applications with multiple instances and 16 single SQL instance applications. You are designing the scaling approach scope for those ESX hosts.
What is your recommendation in scaling the deployment of SQL servers?
A. Two ESX hosts in scale-up approach; four ESX hosts in scale-out approach
B. Two ESX hosts in scale-out approach; four ESX hosts in scale-up approach
C. Six ESX hosts in scale-out approach running 32bit OS and applications
D. Six ESX hosts in scale-out approach using DRS for load balancing
A company has two data centers. They run multiple Exchange servers in each data center in a virtualized environment. The Exchange Admin would like the storage for each Exchange server to be configured to provide the most flexibility for migrating virtual machines between physical servers. VSS tools for application consistency compatibility needs to be maintained.
How should the storage for the Exchange virtual machine be allocated to the hypervisor?
A. Place the Exchange databases and logs on RDMs. Place the boot device for the VM on a VMFS volume.
B. Place the virtual machine files and exchange data files on a single VHD to allow maximum portability and failover.
C. Configure the DAG to save and restore its state when taken offline or moved.
D. Place the virtual machine files, database, and log each in a separate VMFS.
A customer implemented SAN Copy with default settings to create full copies of 60 DMX array volumes on a VNX storage system. After several hours, they determine that the process is taking much longer than expected. Which setting change on the storage system will improve performance?
A. Disable the CMI channel on the destination storage system
B. Disable write cache for the Reserved LUN Pool on the source storage system
C. Add faster LUNs to the Reserved LUN Pool
D. Increase the throttle value
A Storage Administrator with a VNX Unified solution is using the CLI to monitor daily storage performance. They must type long commands to examine the statistical types and names to get the desired results. You have been asked to make
statistical groups to accelerate and ease the demanded monitoring tasks.
Which command must be used to accomplish this job?
A. nas_stats
B. server_stats
C. naviseccli
D. Collect statistics from log files
Your customer recently upgraded their IP switch hardware. Since the upgrade, the customer is experiencing performance degradation on certain NFS exports configured on a VNX for File storage system. The file systems providing the problem exports are all mounted to DataMovers that have been attached to ports on the new switches as part of the upgrade. They have engaged you for advice.
Which action would you recommend?
A. Check for duplex mismatch
B. Change MTU size
C. Change write-aside value
D. Check for speed mismatch
You have designed a VNX for File solution for a creative content provider. The solution involves 10, 2 TiB file systems. Each file system has a Checkpoint taken every hour, refreshed every day. The customer predicted a 2% daily change rate,
and SavVol storage was allocated based on that change rate.
Sometime after the implementation, the customer notices that some of the older Checkpoints are disabled.
What is the most likely explanation?
A. Total SavVol utilization has exceeded the maximum allowed
B. Total number of Checkpoints has exceeded the maximum allowed
C. Checkpoints have a minimum refresh cycle of 48 hours
D. Write activity to the Checkpoint is highly random
A customer is migrating an application to a virtualized environment. After the implementation is completed they realize that performance is below their expectations.
You are tasked to investigate and recommend an economical solution. Using VMware Tools and Analyzer on the VNX, you conclude that their application servers are experiencing CPU over- utilization and storage connection congestion.
What should be your first recommendation?
A. Ensure that VMware Paravirtual SCSI virtual adapter is configured
B. Move application to faster drives
C. Increase memory
D. Enable compression on the LUN
A company recently purchased a VNX storage system to support its clustered SQL Server environment. You are designing the disk layout.
Based on EMC best practices, what design characteristics should you follow when configuring SQL Server on the VNX?
A. Basic disks, NTFS volumes of 64 KB clusters
B. Basic disks, NTFS volumes of 128 KB clusters
C. Dynamic disks, NTFS volumes of 64 KB clusters
D. Dynamic disks, NTFS volumes of 128 KB clusters
You are working with a customer that recently refreshed their hardware with a VNX storage system configured with Flash drives. During this swap customer also migrated their Exchange 2010 environment to the VNX. Now the customer is claiming that they do not see any performance improvement with their Exchange environment.
What is your explanation?
A. Exchange 2010 was deployed in FAST VP.
B. Database and log files are in the same FAST VP.
C. FAST Cache is not enabled on log volumes.
D. Thin LUNs were not 100% pre-allocated in FAST VP.
A customer has a VNX system to provide storage for a VMware 4.1 Cluster with 4 ESX hosts. MS Exchange servers and other application servers will be hosted on VMs. The customer wants to have the best performance at the VMFS disk/
volume level.
What would you recommend when creating boot and email stores using the Virtual Infrastructure client?
A. EagerZeroedThick mode on separate LUNs
B. EagerZeroedThick mode on the same LUNs
C. LazyZeroedThick mode on separate LUNs
D. LazyZeroedThick mode on the same LUNs
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