Cloud Computing Blog

Jamal Mazhar

Subscribe to Jamal Mazhar: eMailAlertsEmail Alerts
Get Jamal Mazhar via: homepageHomepage mobileMobile rssRSS facebookFacebook twitterTwitter linkedinLinkedIn

Top Stories by Jamal Mazhar

Several popular websites and companies were impacted by the recent Amazon cloud outage.  It was quite surprising to see that so many of the companies had no backup plans to restore their applications at an alternate location.  Just because we are using cloud doesn’t mean that we should forget all the lessons we have learned over the years in managing IT risks.  There are several ways companies can mitigate their risk exposure due to these types of outages.  For example one of Kaavo’s customers runs their application across Amazon and Rackspace cloud using Kaavo IMOD; a total outage by one provider wouldn’t bring their application down, their virtual servers at each cloud provider runs around fifty to sixty percent capacity.  It is not always advisable to split the application deployment across multiple clouds, e.g. stateful or transactional applica... (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)

Cloud Management – Various Solutions and Standards

The growing use of Infrastructure as a Service to run custom applications, SaaS, and PaaS offerings is increasing the demand of management solutions to leverage the automation offered by IaaS.  One of the biggest advantages of IaaS is the ability to automate tasks which were not possible before.  E.g. a crashed server can be restored with an API call by launching a new instance.  Effective use of the IaaS APIs can dramatically reduce the time and resources it takes to deploy and provide production support for services and applications. Various solutions and standards are availab... (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 cloud appear as if they are part of their own private corporate network.  The idea here is to isolate the servers used by the customer in the cloud from the rest of the servers in the cloud using ... (more)

How Secure Is Data in the Cloud?

University of Berkley has published an excellent paper on cloud computing, the argument regarding data security in the cloud is that encrypted data in the cloud can be more secure than unencrypted data in the internal datacenter. Almost nobody uses encryption in internal datacenters as they are percieved as secure.  Here is an excerpt from the study: “We believe that there are no fundamental obstacles to making a cloud-computing environment as secure as the vast majority of in-house IT environments, and that many of the obstacles can be overcome immediately with well understood ... (more)