OpenStack is an open-source cloud framework for building on-demand
Infrastructure as a Service.
This tutorial in essence distills from this two-page set of instructions for
setting up devstack on a single server primarily for use by developers.
I used a DELL 1950 with 8 GB of RAM, internal hard-drives and two 1000 MB
Download and Set Up Ubuntu
Download Ubuntu 11.10 from here and burn to DVD Boot the server from the DVD
and start the install. I installed the BASE SYSTEM and only one optional
package, the OpenSSH Server. I named my server "ubuntu-server" I configured
eth0 with a static ip address of 10.202.181.21. This will be important as the
HOST_IP address of devstack. Create a user named "stack". Log in as "stack"
See next page for how to Install Devstack...
stack@ubuntu-server:~$sudo passwd to set the root password
Infrastructure as a Service is one of the three delivery methods of cloud
computing (the other two are Platform as a Service and Software as a
Users of IaaS have the expertise to maintain operating systems and
applications, but don't wish to purchase server, storage and networking
hardware and a datacenter to house the hardware. The cloud provider provides
these services from a shared pool. The cloud user will then use the virtual
machines to fulfill their computing requirements and may install their own
operating system and will install their own applications on the v... (more)
Traditional IT environments that are built using physical servers can only
scale and grow by buying new hardware and software and taking time to install
and rack the hardware, configure the software and the application. If/when
the excess capacity is not needed the servers stand idle consuming power,
cooling and rackspace. This is inefficient and a waste of money.
Amazon Web Services (AWS) allows customers to scale using elastic demand.
Just like a rubber elastic band stretches to accommodate more items , AWS
provides elastic computing to allow a customer to scale up (or down); to... (more)
I previously wrote a review of the Microsoft Azure public cloud and
included a comparison between Azure and AWS (Amazon Web Services) and will
now compare OpenStack and VMware vCloud. For a review of IaaS (Infrastructure
as a Service) see my blog post and video.
This table provides a simple and high level comparison of OpenStack and
Feature OpenStack VMware vCloud Virtualization layer Type 2 virtualization -
Libvirt layered on top of Linux. Supports various hypervisors: XEN, KVM,
HyperV... Type 1 virtualization - bare metal; vSphere hypervisor only.
Management Open API... (more)
This blog post is a summary of AWS (Amazon WebServices and is gleaned from
Jeff Barr's webcast, here: http://youtu.be/CaJCmoGIW24).
I will simply explain each box in the above picture, at a high level, and
explore further in future blog posts as I delve further into AWS.
(AWS is an abbreviation for Amazon Web Services)
Amazon Global Physical Infrastructure
AZ - Amazon zone - When you create an Amazon instance, you can select a
region for your instance - USA, Eerope, AsiaPacific, Government/Federal.
Separated zones - provided to allow for separate datacenters, power cooling
and hig... (more)