CSS Corp Open Source Services

Posts Tagged ‘Node Controller

PDF version of Eucalyptus Beginner’s Guide – UEC Edition

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We have just released the PDF version of “Eucalyptus Beginner’s Guide – UEC Edition, V1.0” and you can download it from https://cssoss.files.wordpress.com/2010/06/book_eucalyptus_beginners_guide_uec_edition1.pdf.  Please help us enhance the book by posting your suggestions as comments here.

The latest version of the pdf will also be availble from http://www.csscorp.com/enterprise-it-support/open-source-services.php .

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UEC: Windows instance on Lucid Lynx [HACK]

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Bundling Windows instances on UEC setup on Lucid Lynx (Ubuntu 10.04) was not as straight forward as it was with Karmic Koala (Ubuntu 9.10).  The steps for bundling, uploading and registering were the same as I mentioned here. The instance comes up nicely from pending to running state, acquires the public and private ip addresses.

Lo!!! there ends the similarity….

I wasn’t able to access the instance. No network connectivity….. neither PING nor RDP works. And this was frustrating!!!

As mentioned in my earlier post about UEC/Eucalyptus – Debugging instances, I tweaked the /usr/share/gen_kvm_libvirt_xml file on the Node Controller and added the VNC display option.

The outcome of this was surprising!!!!

When I connect to VNC, the following error stares at me….

Invalid BOOT.INI file
Booting from C:\WINDOWS
Windows could not start because of a computer disk hardware configuration problem.
Could not read from the selected boot disk. Check boot path and disk hardware.
Please check the windows documentation about hardware disk configuration

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Introduction to UEC and its components

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Cloud

Cloud Computing is a computing model, where resources such as computing power, storage, network and software are abstracted and provided as services on the Internet in a remotely accessible fashion. Billing models for these services are generally similar to the ones adopted for public utilities. On-demand availability, ease of provisioning, dynamic and virtually infinite scalability are some of the key attributes of Cloud Computing.

An infrastructure setup using the cloud computing model is generally referred to as ‘Cloud’. The following are the broad categories of services available on the ‘Cloud’:

  1. Infrastructure As A Services (IAAS)
  2. Platform As A Service (PAAS)
  3. Software As A Service (SAAS)

This ‘Cloud’ is generally available to anyone on the Internet willing to pay. However, a variant called ‘Private Cloud’ is increasingly becoming popular for private infrastructure that has some of the attributes of the ‘Cloud’ as mentioned above. Read the rest of this entry »