OpenStack is easily installed using a package called Packstack. Redhat is one
of the primary contributors to packstack and my install experience is similar
to the installation of RDO, described here
The procedure is quite simple:
Install Redhat, Fedora or Centos on one or more x86 servers.
I installed the minimal Centos installation on a Dell 1950
Install and configure NTP - network time protocol
# yum install ntp
# chkconfig ntpd on
# ntpdate pool.ntp.org
# /etc/init.d/ntpd start
Install the Fedora repo for grizzly
# yum install -y
# yum install -y openstack-packstack
Generate an answer file
# packstack --gen-answer-file=/root/grizzly_openstack.cfg
Since I performed a simple install on one server, I accepted nearly all the
defaults presented in the generated ... (more)
Cloud computing is a general term for computing services delivered over the
Internet, as opposed to computing services hosted inside your own network; on
your own premises.
These computing services can be as simple as Internet based email or as
complex as a Customer Relationship Management (CRM) application.
Cloud computing offers cost savings, because users don't have to invest
capital budget to purchase hardware and software, nor expend the operating
costs of electric power, space and cooling for the hardware and employee
costs of maintaining the hardware and software.
The maj... (more)
Following my single server installation of RDO OpenStack using PackStack,
here is my install of OpenStack across three nodes.
What's key here is the answer files used with packstack. For a single node
its trivial since you just accept nearly all the defaults.
A distributed install requires a bit of planning.
First I installed on two nodes, using packstack from one node (sudo packstack
The answer file for this installation is here, it specifies the location of
each component: cinder on one server (.110) with this line:
# The IP address of ... (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)
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)