Posts Tagged ‘ESX’

Intel VT FlexMigration and AMD-V Extended Migration – Enabling Dynamic, Agile Data Centers

Saturday, December 3rd, 2011

VMware VMotionServer virtualization/consolidation is becoming a norm and data centers and enterprises are now looking towards the horizon at how to bring dynamic, agile, and flexible capabilities to their IT infrastructure.

What I will focus on here is one specific technology that helps meet this goal called Live Migration, the capability to move active Virtual Machines (VMs) across a pool of physical servers with no downtime. If a VM is running on a server that is reaching high utilization or where resources are becoming constrained, Live Migration can migrate the active VM to a different physical server with absolutely no downtime. Now this is what I call truly dynamic and agile! (more…)


VMware vSphere 4 Step-through

Tuesday, May 17th, 2011

VMware vSphere 4VMware vSphere is an industry leading virtualization platform. Basically it is a software suite composed of applications directed towards managing datacenters through the use of virtualization technology. I’m going to briefly discuss some of the major/core components of vSphere 4. This will give you a clear idea of some of the power behind vSphere 4 and virtualization technology in general. For more information/documentation and a full list of benefits offered by vSphere 4, you should check VMware’s website. (more…)


Symmetrical Multiprocessing in the Physical and Virtual World

Saturday, April 23rd, 2011

Quad Core Intel Xeon E7500

Quad Core Intel Xeon E7500

The continuous shrinking of transistor size has pushed the limits of how many transistors can be placed on a single die (currently in the millions). In consequence, to utilize the increased amount of transistors, the CPU or “the core” has been replicated multiple times on the same die. Todays CPUs contain multiple cores with each core having fast L1 caches and sharing either a larger L2 or L3 cache, the bus interface, and the external die connections. For example, an Intel Xeon 7500 can support 8 sockets each with 8 cores for a total of 64 cores. Physical machines now commonly use multiple processors, but even in a multi-core processor, each core is treated as a seperate CPU. What this means is that even a multi-core CPU is taking advantage of symmetrical multiprocessing (SMP). (more…)


Using the VI Java API with VMware ESXi

Wednesday, October 20th, 2010

Earlier this year, when I first thought to test out the VI Java API, I estimated I would spend several hours learning the API just to write a simple test program. I was surprised when in less than two hours, I had created my first java program for my ESXi server. Granted it’s a simple program, but the ease and speed of creating something that interacts with my ESXi server was impressive. (more…)