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

Joint OpenStack Denver and Infracoders Denver Meetup

Next Monday, May 20, the OpenStack Denver meetup group will gather jointly with the inaugural meeting of the Infracoders Denver meetup group for a talk titled “Infrastructure as Code with Chef and OpenStack.” The joint meeting will be held at Innovation Pavilion in Centennial/Englewood (location information here). The event will start at 7PM.

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Using GRE Tunnels with Open vSwitch

I’m back with another “how to” article on Open vSwitch (OVS), this time taking a look at using GRE (Generic Routing Encapsulation) tunnels with OVS. OVS can use GRE tunnels between hosts as a way of encapsulating traffic and creating an overlay network. OpenStack Quantum can (and does) leverage this functionality, in fact, to help separate different “tenant networks” from one another. In this write-up, I’ll walk you through the process of configuring OVS to build a GRE tunnel to build an overlay network between two hypervisors running KVM.

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Very Early Thoughts about EMC ViPR

EMC announced ViPR today, the culmination of the not-so-secret Project Bourne and its lesser-known predecessor, Project Orion. Although I used to work at EMC before I joined VMware earlier this year, I never really had deep access to what was going on with this project, so my thoughts here are strictly based on what’s been publicly disclosed. Naturally, given that the product was only announced today, these are very early thoughts.

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Technology Short Take #32

Welcome to Technology Short Take #32, the latest installment in my irregularly-published series of link collections, thoughts, rants, raves, and miscellaneous information. I try to keep the information linked to data center technologies like networking, storage, virtualization, and the like, but occasionally other items slip through. I hope you find something useful.

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Potential Fix for Kerberos, SSH, LDAP, and Active Directory Issue

I had a reader contact me with a question on using Kerberos and LDAP for authentication into Active Directory, based on Active Directory integration work I did many years ago. I was unable to help him, but he did find the solution to the problem, and I wanted to share it here in case it might help others.

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Spousetivities at IBM Edge 2013

Regular readers of this site know that my wife, Crystal, runs something called Spousetivities. Spousetivities originated out of boredom, essentially—Crystal was traveling with me to VMworld and wanted to find someone to hang out with while I was at the conference. That was VMworld 2008, and since that time she’s had activities at VMworld 2009, VMworld 2010 (including VMworld Europe 2010), VMworld 2011 (both US and Europe), and VMworld 2012 (US and Europe). She’s also had activities at EMC World (2011 and 2012), HP Discover EMEA, and Dell Storage Forum in Boston. This year, she’s added another conference: IBM Edge 2013 in Las Vegas!

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On Network Virtualization and SDN

Is there a difference between network virtualization and Software-Defined Networking (SDN)? If so, what is the relationship between them? Is one a subset of the other? This is a topic that is increasingly being discussed and debated. So, in a similar fashion to my post on network overlays vs. network virtualization, I thought I’d weigh in with some thoughts. This post, like all of my posts, is intended to help spark a conversation, so I encourage you to share your thoughts in the comments after you’ve finished reading.

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Collection of OpenStack Summit Session Liveblogs

I had the pleasure of attending the OpenStack Summit in Portland, OR last week. It was my first time at the OpenStack Summit, and it was great to meet lots of folks in the OpenStack community as well as be exposed to some more in-depth and detailed OpenStack information. While I was there I tried to liveblog as many sessions as I was able; here are links to the various session liveblogs that I managed to publish. Enjoy!

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OpenStack Summit 2013: OpenStack High Availability in Grizzly and Beyond

This is a session titled “More Reliable, More Resilient, More Redundant: OpenStack High Availability in Grizzly and Beyond.” The presenter is Florian Haas from Hastexo (@hastexo). Florian is one of the founders of Hastexo, which is a services firm that provides OpenStack services, among other things.

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OpenStack Summit 2013: OpenStack Back to the Enterprise, Keep Calm and Boldly Go On

This is a session titled “OpenStack Back to the Enterprise: Keep Calm and Boldly Go.” The session is led by Florian Otel (@florianotel on Twitter), with HP Cloud Services in EMEA. The purpose of this talk is to share some of the “lessons learned” in how to position OpenStack to enterprise customers and overcome their objections.

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