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As many of you may know, Rackspace recently released Alamo, their private cloud software which is available here. Rackspace, with help of Ubuntu OS and Chef recipes has created a single ISO capable of deploying OpenStack to commodity hardware in a matter of hours instead of days or weeks. With the promise of bare-metal to fully configured, ready-to-use OpenStack Cloud, …

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In a couple of recent posts I covered some fundamental concepts of OpenStack networking, including VlanManager and floating IPs. This post builds upon the recent content and aims to present how traffic flows in different scenarios addressed by OpenStack. Reading the prior posts (VlanManager, FloatingIPs) is highly recommended before going through this blog post. Also, consider before reading that all the scenarios …

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OpenStack APAC Conference 2012 stood out as the world's most attended OpenStack conference in history. Quality of the organization was superb. Thank you COSUG and CSDN for putting on an awesome show. Here is an update on our OpenStack adventures in China... Arrived Thursday evening. Here is the Beijing skyline from the 19th floor of Crown Plaza Sun Palace. Humid air …

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Mirantis OpenStack ExpressDeveloper Edition:Get Private-Cloud-as-a-Service for a year free. Recently I outlined how VlanManager works and how it ensures network scalability and tenant isolation. Up to this point, however, I've only dealt with fixed IP networks of different tenants. While fixed IPs are what instances are given by default, they do not ensure that the instance is immediately reachable from the outside …

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In a previous post I explained the basic mode of network operation for OpenStack, namely FlatManager and its extension, FlatDHCPManager. In this post, I'll talk about VlanManager. While flat managers are designed for simple, small scale deployments, VlanManager is a good choice for large scale internal clouds and public clouds. As its name implies, VlanManager relies on the use of …

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Mirantis OpenStack ExpressDeveloper Edition:Get Private-Cloud-as-a-Service for a year free. In a previous post about OpenStack networking, my colleague Piotr Siwczak explained how FlatManager and FlatDHCPManager works in a multi-host network setup. Here, I will explain how FlatDHCPManager works with single-host networking. It is perhaps easier to understand; it also happens to be the default mode you get when installing OpenStack using one …

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I love a great user experience. And so, I picked iPhone over Android; I picked black-and-white Kindle over iPad for reading; I picked Netflix for couch-potato-ing over AppleTV. But when Amazon announced that their Instant Videos would be available on the iPad, I had to stop and think. And not just about my techno-toy inventory. Netflix's famous innovation -- risk-taking (Qwikster was …

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Over time, networking in OpenStack has been evolving from a simple, barely usable model, to one that aims to support full customer isolation. To address different user needs, OpenStack comes with a handful of "network managers". A network manager defines the network topology for a given OpenStack deployment. As  of the current stable "Essex" release of OpenStack, one can choose …

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In collaboration with Cisco’s OpenStack team and a number of other community members, we’ve started socializing a set of blueprints for an elastic load balancer API service – LBaaS. With LBaaS, the API for tenants is abstracted away from the actual API of underlying hardware or software load balancers, in consistent fashion.

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Is the Nicira acquisition good for OpenStack? Definitely. But before I defend my assertion, let's look at why this is good news. I'll start with Microsoft (though the old-school tech guys who need to pay attention are at Cisco; more on that in a moment). Microsoft don't get no respect in the infrastructure business -- not least when it comes to …

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This week Boris Renski and I are visiting OSCON 2012 in Portland, OR. So far it's been a lot of fun. One of the guys we met here was Lucas Carlson, CEO of AppFog, who gave us an invitation to join their contest. The rules were very simple. You had to write an obfuscated program which outputs "Happy Birthday OpenStack", and …

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Today I am at the OpenStack day at OSCON… spending the day chatting with developers and OpenStack community stakeholders. Here are some real-time thoughts, directly from the trenches of the open source ecosystem… There appears to be many disagreements about code maturity of the OpenStack projects and the number of OpenStack production deployments. However, everybody agrees that OpenStack community of actively …

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Overview When using cloud storage, such as OpenStack Swift or Amazon S3, at some point you might face a situation when you have to upload relatively large files (i.e. a couple of gigabytes or more). For a number of reasons this brings in difficulties for both client and server. From client point of view, uploading such a large file is quite …

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One of my favorite business-technology-society-history books is The Machine that Changed the World, by a bunch of guys from MIT -- Womack, Jones, et al. In it, they describe the technological and organizational breakthroughs behind what we now know as lean, that revolutionary, begin-with-the-end-in-mind approach that drives agile thinking and end-user centric design, engineering and production processes. It originated radical …

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If you've ever tried to explain what you do for a living for someone who's not in tech, you've probably been challenged to make it relevant to their day-to-day life. Steve Jobs did a lot to ameliorate that. But even as we are accustomed to the rate of transformations made possible by the technology we all work on, people outside of …

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