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Showing posts with the label Virtualization

Injecting a Layer of Automation

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Relax and Recover  is the leading Open Source solution for automated Linux disaster recovery. It was once the pride of my work and is now totally irrelevant at my current job at ImmobilienScout24 . Why? Simply because at ImmobilienScout24 we invest our time into automating the setup of our servers instead of investing into the ability to automatically recover a manually configured system. Sounds simple but this is actually a large amount of work and not done in a few days. However, if you persist and manage to achieve the goal the rewards are much bigger: Don't be afraid of troubles, based on our automation we can be sure to reinstall our servers in a very short time. The following idea can help to bridge the gap if you cannot simply automate all your systems but still want to have a simplified backup and disaster recovery solution: Inject a layer of automation under the running system. The provisioning and configuration of the automation layer should be of cour...

CloudCamp Gent 2011

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I am at the CloudCamp Ghent  and can share some notes. VMware Cloud Foundry http://www.flickr.com/photos/70260750@N08/6376439699/ Lode Vermeiren , VMware. Talk on Slideshare Long part about VMware products and history that are cloud related. It got actually interesting once he started to demo stuff. The good part was that it was very authentic (e.g. not all parts where working). The bad part was that there was not so much to see, just some basic "upload my simple Hello World app" The speaker distributed USB Keys with a VM and registration codes for the Cloud Foundry service. Look at http://cloudfoundry.com/micro and use the cloudcampgh code for instant access (till November 26 th ). Without the code invites might take a couple of days to activate. Combell Cloud Cases Company is sponsor, this is a short sales pitch Quite refreshing in its brevity "Devops in the Cloud" is a pleonasm http://www.flickr.com/photos/70260750@N08/637652...

Lab Manager Light: Self Service Virtualization as private Cloud

I just gave my talk at the LinuxTag 2011 about Self Service Virtualization as private Cloud and my new Open Source project Lab Manager Light . From the audience of about 80-100 people there where quite a few interesting questions and also several "I wish you had done that last year" comments. Download the slides: LinuxTag 2011 - Lab Manager Light - Self Service Virtualization as a Private Cloud.pdf

XEN PV VM on VMware ESX

Seems like a total waste of time without practical use? Well, it is — unless you need to test drive an idea that will be rolled out in your production data center running XEN PV but you have only VMware ESX as a playground. Since I spent a little time putting the pieces together I will share my experience based on CentOS 5.5 . Basically it all went es expected, I only had some trouble to get the XEN PV VMs into the regular network via bridging versus the NAT which is the default that comes with CentOS. Basic Setup: Configure your VMware VM to allow promiscuous networking: Allow promiscuous networking on the vSwitch Add this line of manual configuration to the Extended Configuration of the VM: ethernet0.noPromisc=“FALSE” Install regular CentOS and add the group "Virtualization": yum groupinstall Virtualization Make sure that there is enough free disk space in /var/lib/xen/images to store your virtual disk images. Network Setup:   Edit /etc/libvirt/qemu/networks/d...
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