Scott's Weblog The weblog of an IT pro specializing in virtualization, networking, open source, and cloud computing

Multiport Uplink Driver

Virtual I/O is getting more attention. This press release from Chelsio crossed my desk this morning:

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What is SR-IOV?

I/O virtualization is a topic that has received a fair amount of attention recently, due in no small part to the attention given to Xsigo Systems after their participation in the Gestalt IT Tech Field Day. While Xsigo uses InfiniBand as their I/O virtualization mechanism, there are other I/O virtualization technologies out there as well. One of these technologies is Single Root I/O Virtualization (SR-IOV).

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vSphere 4.0 Quick Start Guide

It’s funny how ideas evolve. Months ago, the idea of a “super blog” came up in a series of Twitter conversations. Stephen Foskett (@sfoskett on Twitter) ran with that idea to create Gestalt IT; Duncan Epping (@DuncanYB on Twitter) ran with that idea to create vSphere 4.0 Quick Start Guide: Shortcuts down the path of Virtualization.

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My Number One Yojimbo Complaint

After a couple of weeks using Yojimbo from Bare Bones Software, I’m really liking the application. I’m finding it useful and helpful to have an “anything bucket” into which I can toss bits and tidbits of information on an as-needed basis. It’s become incredibly useful for quickly throwing in a URL from Camino or NetNewsWire that I can come back and review later.

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Triangle Area VMUG Meeting Next Week

The next meeting of the Triangle Area VMware User Group will be next Thursday, December 10, 2009, from 11:30AM to 2PM. The meeting will be held at RTP Organization in Building 18/1807 at 104 TW Alexander Drive in Research Triangle Park. A map of the location (courtesy of Google Maps) is available here, and a schedule/agenda of the meeting is available here.

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Understanding NPIV and NPV

Two technologies that seem to have come to the fore recently are NPIV (N_Port ID Virtualization) and NPV (N_Port Virtualization). Judging just by the names, you might think that these two technologies are the same thing. While they are related in some aspects and can be used in a complementary way, they are quite different. What I’d like to do in this post is help explain these two technologies, how they are different, and how they can be used. I hope to follow up in future posts with some hands-on examples of configuring these technologies on various types of equipment.

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Virtualization Short Take #31

Welcome back to yet another Virtualization Short Take! Here is a collection of virtualization-related items—some recent, some not, but hopefully all interesting and/or useful.

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Storage Short Take #5

I’ve decided to resurrect my Storage Short Take series, after almost a year since the last one was published. I find myself spending more and more time in the storage realm—which is completely fine with me—and so more and more information coming to me in various forms is related to storage. While I’m far from the likes of storage rockstars such as Robin Harris, Stephen Foskett, Storagebod, and others, hopefully you’ll find something interesting and useful here. Enjoy!

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Thinking Out Loud: Is VMware Legitimizing the Competition?

I was reading a completely unrelated post on Alessandro’s site this morning about how VKernel is reacting to VMware’s release of CapacityIQ when a thought occurred to me: is VMware legitimizing the competition?

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Enabling Jumbo Frames on a Nexus 5000

I’ve been doing a pretty fair amount of work recently with the Cisco Nexus 5000 series of switches, as evidenced by the flurry of Nexus-related articles:

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