Your customer has a Microsoft SQL installation on a VMware guest Windows 2003 Server using RDM. The ESXi server uses a VNX system.
What would you recommend to your customer to avoid misalignment between a partition used by the Windows 2003 Server and the underlying physical disk?
A. Use an NTFS allocation unit size of 64 KB and an offset value of 1024.
B. Use an NTFS allocation unit size of 32 KB and an offset value of 1024.
C. Alignment is automatically handled by Windows.
D. Alignment for the virtual disk is handled by the ESXi server.
If an SP fails within a VNX system, how many drives can the surviving SP address at the same time if array ports 0 and 2 are used?
A. 4
B. 8
C. 15
D. 25
Your customer is reporting less than optimal performance for their online payment processing application. The payment processing application is running on a Windows Server cluster with the back-end Oracle databases running on Oracle Enterprise Linux (OEL). Both the application and database environments have been presented storage from the customer's VNX solution.
Which tool is best suited to identify performance issues on the application servers?
A. Perfmon
B. Oracle Statspack
C. Workload Analyzer
D. IOSTAT
A customer is implementing a VNX for File solution in a performance-oriented application environment. There are Windows and Linux VM clients accessing the file systems. The customer wants to track both file system and DataMover utilization. The Performance Administrator prefers GUI to CLI access.
What would you recommend?
A. Unisphere Statistics for File
B. server_stats
C. Custom monitoring script
D. Unisphere Analyzer
Exchange 2010 is being implemented on a pair of VNX storage arrays. There will be a production site and a DR site, each with two servers and one VNX storage array. EMC RecoverPoint will handle the remote replication between the sites.
Which is a valid architecture?
A. Implement both Exchange servers in a local DAG. Install EMC Replication Enabler for Exchange (REE) and install Replication Manager agents on all severs in the DAG.
B. Implement both Exchange servers in a cluster with shared disks. Use separate LUNs and RAID Groups for the Database, Log and Quorum. Install and enable EMC Replication Manager for remote replication.
C. Implement both Exchange servers in a local DAG. Install EMC Replication Manager for remote replication.
D. Implement both Exchange servers in a cluster with shared disks. Use separate LUNs and RAID Groups for the Database, Log and Quorum. Install and enable Microsoft Cluster Enabler for RecoverPoint to enable cluster failover between sites.
A customer wants to mark an Incremental SAN Copy Session at 12:00 UTC, and start the transfer of data at 20:00 UTC. Their data access pattern consists of small block I/O, with around 80% reads.
Which statement correctly identifies the performance impact on their environment?
A. COFW activity for 8 hours plus the time taken to transfer the data
B. COFW activity for the time taken to transfer the data
C. Tracking activity for 8 hours plus COFW activity for the time taken to transfer the data
D. COFW activity for 8 hours plus tracking activity for the time taken to transfer the data
Your customer is reporting less than optimal performance for their online payment processing application. The payment processing application is running on a Windows Server cluster with the back-end Oracle databases running on Oracle Enterprise Linux (OEL). Both the application and database environments have been presented storage from the customer's VNX solution.
Which tool is best suited to identify database performance issues?
A. DBFlash
B. Workload Analyzer
C. IOSTAT
D. Perfmon
A customer with a virtualized environment has asked you to architect a new VNX storage solution utilizing their many NFS datastores. They are also deploying a new Cisco Unified Computing System as their compute base. However, they believe that virtualizing their critical servers may cause network performance concerns because these servers have a very high transaction rate with a CPU bound application.
How would you respond to your customer's concerns?
A. Deploy their environment as architected, and enable DirectPath I/O for their servers.
B. Deploy their environment as architected, with CNA configured for Jumbo frame support, end- to-end.
C. Their environment will not be compromised by virtualization; it can be deployed as architected.
D. Their environment will not be compromised by virtualization, but it requires pNFS on the ESXi and VNX systems.
A customer is using a virtualized environment with a large number of NFS datastores presented from a VNX system. They are experiencing more than expected network traffic on their datastore networks.
According to EMC best practices, what recommendation should you make to your customer?
A. Adjust NFS.ReadBufferSize and NFS.SendBufferSize to 64.
B. Ensure that all VMware file systems are thin provisioned to improve NFS write I/O.
C. Enable NFS write cache for all NFS datastores.
D. Make sure that the NFS and VMKernel traffic is consolidated onto the same virtual switches.
A VNX for File administrator is implementing SnapSure for backup staging. The administrator is concerned that this solution might affect the Production File Systems (PFS). You are asked to describe the possible performance impact of SnapSure checkpoints on the PFS.
How would you respond?
A. COFW will affect PFS write performance.
B. PFS read activity is not affected by Checkpoints.
C. COFW will affect PFS read performance.
D. Checkpoints have no performance impact on the PFS.
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