VMware vCloud Director is used by organizations wishing to build a private
cloud (Infrastructure as a Service - IaaS). The purpose of this guide is to
help you set up vCloud. Thus, the guide configures vCloud for local storage
and direct-connect networking. Storage and network provisioning is not
configured because these are complex configurations requiring a SAN/NAS,
vShield Edge Gateway, VXLAN etc most of which are not available in a simple
To understand what IaaS cloud computing is, I offer some blogs I have written
and a short video at these links:
Introduction to cloud computing Overview of Infrastructure as a Service Four
minute video overview of IaaS
The complete vCloud documentation is here
This blog post extracts critical information from the vCloud Director
Evaluation Guide and it is critical that you have this document (preferably)
printed whil... (more)
What is Hadoop?
Following my high-level write-up of Hadoop and Big Data, this article will
present each of the components or projects that make up Hadoop with a
technical description of each.
First, what is Hadoop?
Hadoop stores and processes large volumes of a wide variety of data that
changes rapidly. It analyses and summarizes the data. For example: census of
a city, web page analytics, threat analysis, risk models, network failures,
Hadoop is redundant and reliable, powerful and focused on batch processing.
Hadoop divides a large data processing job into many smaller tas... (more)
Following my high level description of OpenStack, I now delve in the install
This post is a manual install of OpenStack on Centos. Although the steps are
experience was that the output of each command results in text strings that
are required in subsequent commands. Thus I have colour coded each text
string output so that the text can be accurately used in subsequent commands.
(This is post one of five; posts two, three, four and five to follow will
detail the install of the... (more)
OpenStack is an Infrastructure as a Service offering. (see my prior post for
an explanation of IaaS).
OpenStack is an OpenSource project, founded by RackSpace, NASA and others.
OpenStack can be deployed as a public or private cloud.
The OpenStack projects are: CINDER, GLANCE, KEYSTONE, NOVA, QUANTUM, SWIFT.
OpenStack Compute: (NOVA)
Project NOVA, or OpenStack Compute, provisions and manages on-demand virtual
machines and associated resources: CPU, Memory, Disk and Network.
Virtual machines can be started, stopped, suspended, created and deleted,
while network options for a ... (more)
Following my initial introduction to Hadoop and overview of Hadoop
components, I studied the Yahoo Hadoop tutorial, and have a deeper
understanding of Hadoop. I would like to share my learning and help others
Why does Hadoop require HDFS, what's wrong with NFS?
Normal 0 false false false EN-US JA X-NONE
Nothing! NFS been around for years and is incredibly stable. A distributed
file system, such as NFS, provides the functionality required for servers to
share files. It does this by exposing a volume to the network, which users
connect to over the TCP/IP proto... (more)