Virtualizing PerformanceCritical Database Applications in VMware vSphere 6.0

VMware
The performance parity between bare-metal and virtualised servers is an accepted fact today. But what about the most demanding applications, such as monster virtual machines running databases and transaction processing applications? Experiments in this paper demonstrate that VMware vSphere 6.0 virtual machines run out of the box at 90% of the performance of native systems even for the most demanding workloads at the highest throughput levels. Download the Performance Study Technical Whitepaper
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Virtualized Hadoop Performance with VMware vSphere® 6 on High-Performance Servers

VMware
Large advances have been made in hardware and every level of the software stack since the virtualized Hadoop tests published in April 2013. This paper shows how to take advantage of these advances to achieve maximum performance. The cluster size remains at 32 two-processor 2U hosts; however, the processor, memory, network, and storage capabilities are all roughly doubled from those reported in the earlier paper. The performance of native and several VMware vSphere® 6 virtualized configurations were compared using the same TeraSort application suite as before. It was found that the more powerful hosts give a larger advantage to multi-VM per host configurations: virtualized TeraSort is now up to 12% faster than the optimized native configuration. The apples-to-apples case of a single virtual machine per host again shows performance close…
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Leveraging NIC Technology in VMware vSphere

VMware
VMware vSphere® is constantly evolving to add many new features and functionality to incorporate the latest technology, and one area of this trend is network performance. vSphere supports a variety of network interface controllers (NICs). Each NICs primary job is to deliver packets in and out of the host; however, NICs also include technology that vSphere can leverage to perform network transfer faster and more efficiently. This technical white paper examines scenarios of virtual machines sending and receiving network traffic across different hosts and how vSphere can take advantage of the NIC technology to improve network performance in a vSphere environment.
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Microsoft Exchange Server Performance on VMware Virtual SAN

VMware
Microsoft Exchange Server is a commonly found email server and is considered a business-critical application by many organizations. Virtualized instances of Exchange Server can be successfully deployed using VMware vSphere 5.5 and it has been shown that Exchange Server performs well in a virtualized environment with shared SAN storage. With the release of VMware Virtual SAN, the next logical step is to study the performance of Exchange Server on this storage platform. This white paper shows that virtualized Exchange Server 2010 on vSphere 5.5 with VMware Virtual SAN scales well while maintaining very good application response time as more Exchange users are added along with more Virtual SAN hosts. This scale-out approach of supporting more Exchange users by adding more Virtual SAN hosts as needed is a very cost-effective way…
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SQL Server Performance

Microsoft
It is pretty important to make sure you set the Max Server memory setting for SQL Server 2005/2008 to something besides the default setting (which allows SQL Server to use as much memory as it wants, subject to signals from the operating system that it is under memory pressure). This is especially important with larger, busier systems that may be under memory pressure. This setting controls how much memory can be used by the SQL Server Buffer Pool.  If you don’t set an upper limit for this value, other parts of SQL Server, and the operating system can be starved for memory, which can cause instability and performance problems. It is even more important to set this correctly if you have “Lock Pages in Memory” enabled for the SQL Server…
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vSphere 5.1 Performance History issue

VMware
There is currently an issue with the vSphere 5.1 performance history charts. The symptoms are straight forward: You see only the last 30 days of performance history in the ‘past year’ view Only one month of performance history appears when trying to see the past year VMware is working on a solution for the problem currently. It appears that the problem has been identified (stored procedure purging data) and hopefully a fix will be released soon. Please subscribe to the following KB to be kept up to date: http://kb.vmware.com/kb/2042164
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