Impact of Enhanced vMotion Compatibility on Application Performance

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Enhanced vMotion Compatibility (EVC) is a technique that allows vMotion to proceed even when ESXi hosts with CPUs of different technologies exist in the vMotion destination cluster. EVC assigns a baseline to all ESXi hosts in the destination cluster so that all of them will be compatible for vMotion. An example is assigning a Nehalem Read more...

Performance Best Practices for VMware vSphere 5.1

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We’re pleased to announce the availability of Performance Best Practices for vSphere 5.1.  This is a book designed to help system administrators obtain the best performance from vSphere 5.1 deployments. The book addresses many of the new features in vSphere 5.1 from a performance perspective.  These include: Use of a system swap file to reduce Read more...

vCenter Server 5.1 Database Performance with Large Inventories

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  Better performance, lower latency, and streamlined statistics are just some of the new features you can expect to find in the vCenter Server in version 5.1. The VMware performance team has published a paper about vCenter Server 5.1 database performance in large environments. The paper shows that statistics collection creates the biggest performance impact on the Read more...

VXLAN Performance on vSphere 5.1

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The VMware vSphere I/O performance team has published a paper that shows VXLAN performance on vSphere 5.1. Virtual extensible LAN (VXLAN) is a network encapsulation mechanism that enables virtual machines to be deployed on any physical host, regardless of the host’s network configuration. The paper shows how VXLAN is competitive in terms of performance when Read more...