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

The View from the Other Side

Steve Chambers at ViewYonder recently published an article countering the common “all my eggs in one basket” argument that is so frequently used as an argument against virtualization. Apparently, a comment in my Virtualization Short Take #37 post led him to believe that I am not, in his words, “fully on board yet”. So, I thought it might be helpful to discuss the view from the other side—from the perspective of those who aren’t “fully on board yet”.

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Virtualization Short Take #37

It’s that time again: time for another Virtualization Short Take! My Virtualization Short Takes are quick glances at various news bytes, announcements, useful blog posts, or other items of interest. (By the way, the “short” in “Short Take” does not imply that my post is going to be short, in case anyone was wondering. I’m still long-winded, and I have a lot of things that I find interesting.)

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How NIV and FCoE Play Together

Last year, I wrote a piece about multi-hop Fibre Channel over Ethernet (FCoE) and some of the various reasons why—at the time—multi-hop FCoE was not a practical reality. Some things have changed since I last discussed multi-hop FCoE, and today I’d like to take a quick look at the interaction between network interface virtualization (NIV) and FCoE and see how this plays into multi-hop FCoE.

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A Quick and Simple Guide to Building an OpenBSD VM

I’ll start this off with a disclaimer: this post is really more for my own benefit than the benefit of anyone else.

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Understanding Network Interface Virtualization

In late November 2009, I published a post on understanding NPIV (N_Port ID Virtualization) and NPV (N_Port Virtualization); you can read the full post here. In that post, I described a pair of virtualization technologies—NPV and NPIV—for Fibre Channel storage area networks (SANs). This time around, I’d like to discuss a related technology on the Ethernet networking side called network interface virtualization (NIV). This technology, by the way, is currently undergoing IEEE standardization as part of the 802.1Qbh standard under the name “Bridge Port Extension”.

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VSS Can Cause Problems with RM

This is just a quick post about a potential fix for some timeout issues when using EMC Replication Manager (RM). An e-mail sent to an internal distribution list described a situation in which a user was using RM but was getting an error when trying to take a VMware snapshot. The error reported was a fairly generic error:

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Virtualization Short Take #36

It’s been a busy couple of weeks! I was in Vienna, Austria, all last week, and I’m on the US West Coast this week. Even though I’ve been on the go, I’ve still been collecting various virtualization-related posts and tidbits. Here they are for you in Virtualization Short Take #36! I hope you find something useful.

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VMware ESX, EMC CLARiiON Arrays, and Multiple Protocols

I was browsing through an EMC technical document titled “EMC CLARiiON Integration with VMware ESX Server” (download it here) a little while ago and I came across a phrase in the document that caught my attention:

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PXE Booting VMware ESX 4.0

I recently had the opportunity to work on a proof of concept (PoC) in which we wanted to help a customer streamline the processes needed to deploy new hosts and reduce the amount of time it took overall. One of the tools we used in the PoC for this purpose was PXE booting VMware ESX for an automated installation. Here are the details on how we made this work.

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Congrats to HyTrust

Congratulations are in order for virtualization security company HyTrust, who within the last few days has had a flurry of activity. I’ve met HyTrust’s CEO several times (he’s a great guy, by the way) and I’ve followed the company since their early days; personally, I think it’s great that they’re seeing some success.

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