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Jamal Mazhar

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Top Stories by Jamal Mazhar

After my earlier blog discussing the evolution of IT, I had several discussions on the benefits and challenges of virtualization, private, and public clouds.  Following bar chart is an attempt to capture the benefits and challenges of various phases of IT evolution from the days of having dedicated physical servers for each application to the use of public cloud. The chart is self explanatory, some key points to note are: Going from virtualization to private cloud is basically a step to provide self service capabilities to the application owners.  It increases flexibility and also increases the management complexity, as it adds another layer of abstraction The biggest advantage of using public cloud is reduction in fixed costs, as you don’t have to build the capacity for ... (more)

Building a Private Cloud Within a Public Cloud

One of our customers wanted to establish a site to site connectivity between their datacenter and  public cloud (Amazon EC2) and then have a private network within Amazon EC2 with their own custom IP addresses for their servers in the cloud.  Basically the idea here is to augment the internal datacenter resources with the resources in the public cloud securely so that the servers in the cl... (more)

More on Benefits and Challenges of Cloud Computing

Here is the revised version of the bar-chart I posted in the previous blog. It shows the evolution of IT to explain the benefits and challenges of cloud computing, and showing why and how we got to ... (more)

More on Application Centric vs. Infrastructure Centric Management

In reference to my earlier blog on Application Centric Management, there is a discussion on the cloud computing group , I posted a detailed response, sharing it here: When we say we need application centric approach it is implied that it is needed from application owner perspective, people who are responsible for managing applications, their service levels etc.  People responsible for r... (more)

Amazon EC2 datacenter in Europe

Amazon recently announced the EC2 availability in Europe; this is a big announcement and Amazon is going to compete directly with Flexiscale in the European market.  Prior to this announcement, Amazon was only offering S3 storage services in Europe.  This will give additional choice to European and other non-US companies who want to leverage cloud computing but were reluctant to put data... (more)