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Formation of VCE coalition

The Virtual Computing Environment (VCE) coalition was announced this morning. This is a coalition between Cisco and EMC, together with VMware to accelerate customers’ ability to increase business...

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Great intro to vSphere

Have you ever tried to explain or justify virtualization to someone, but walked away feeling they didn’t quite get it? e.g. your boss, or maybe someone else that needs to “get it” for you to get your...

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Cisco Nexus 1000V R1.2 for vSphere 4 Released

Just on a week ago, Cisco released the Nexus 1000V R1.2 virtual switch for vSphere 4. This introduced a bunch of new features mainly around setup/installation and security. The full list of new...

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Demystifying HP Flex-10 network mappings with vSphere

Confession: I haven’t had any first hand experience with the HP Flex-10 modules. However, I know from talking with a number of customers that there are a lot of them out there. Kenneth Van Ditmarsch...

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VMXNET3 vs. VMXNET2 Performance Shootout

With vSphere 4, we introduced a new paravirtualized adapter—VMXNET3. This was designed from the ground up for high performance and supports a bunch of new features. So how does it perform? One of our...

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VMware vSphere + Cisco Nexus 1000V bundles program extended in 2010

Ok, it’s not really technical, but definitely worth a short blog post. When we released vSphere in May last year, we introduced some cut-price bundles that included the Cisco Nexus 1000V virtual...

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F5 Accelerates Long Distance vMotion

At VMworld last year, F5 previewed and demonstrated their Long Distance vMotion solution. Since then, F5 has worked on integrating the solution into their BIG-IP product and leverage their new WAN...

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Jumbo Frames in vSphere 4.0

In vSphere 4.0, we introduced support for jumbo frames on vmkernel interfaces with ESX 4.0 and ESXi 4.0. This meant you could use jumbo frames for iSCSI, NFS, FT, and vMotion in both releases....

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Security Hardening Guide for vSphere 4.0 Published

The final release of the vSphere 4.0 Security Hardening Guide has hit the streets. This is a comprehensive 100+ page guide with more than 100 guidelines on hardening vSphere 4.0 components in a...

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vSphere loves 10GigE

It didn’t seem so long ago that 10GigE was just “one of those things we’ll look at soon”. A show of hands at our recent internal TechSummit conference suggests almost every customer is either...

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FCoE Webcast coming up

My previous post was on why vSphere loves 10GigE. You can converge all those 1GigE links into a pair of 10GigE to not only improve your network performance but reduce the complexity of your...

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More on HP Virtual Connect

I wrote a blog entry earlier this year around using HP Flex-10 with vSphere … or perhaps I should say I wrote a pointer to an entry on Flex-10 written by Kenneth van Ditmarsch at virtualkenneth.com I...

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Using 10GigE with VMware vDS and Cisco Nexus 1000V

In a blog post last month titled, “vSphere loves 10GigE”, I mentioned a deployment paper was in the works. The paper titled, “Deploying 10 Gigabit Ethernet on VMware vSphere 4.0 with Cisco Nexus 1000V...

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Got Network I/O Control?

vSphere 4.1 launched today with a bunch of great new features and improved performance. Network I/O Control (NetIOC) was the major feature enhancement for networking. NetIOC is a must have for anyone...

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Under the Covers with VMware FT (Fault Tolerance)

By any measure, FT (Fault Tolerance) is a ground-breaking technology. Introduced a year ago with vSphere 4.0, FT enables an application to continue uninterrupted even after a complete and catastrophic...

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IPv6 and vSphere 4.1

Those of you who read the “What’s new in Networking in vSphere 4.1” would have noticed that vSphere 4.1 is currently undergoing IPv6 conformance testing for the NIST Host Profile. (a little bit of...

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vNetwork Journey

By Howie Xu, Director, Networking R&D, VMware Inc. At VMworld 2010, VMware executives Paul Maritz and Steve Herrod did a great job in articulating "business agility" and "IT as a Service" vision...

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LBT (Load Based Teaming) explained (Part 1/3)

By Hugo Strydom, Managing Consultant, VMware Professional Sercices In this first part of how LBT works we want to first explain how the stats are derived for the pNIC attached to the vDS (or vSwitch)....

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LBT (Load Based Teaming) explained (Part 2/3)

By Hugo Strydom, Managing Consultant, VMware Professional Services In the first part we looked at how we collect network stats. In this part we will be looking at when and how LBT checks for load and...

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LBT (Load Based Teaming) explained (Part 3/3)

By Hugo Strydom, Management Consultant, VMware Professional Services In this part we will look at some scenarios and what will happen when a pNIC is saturated. Scenario 1: ESX host with 2x 1Gb pNIC's...

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