Dispelling 3 Myths of Cloud Application Migrations
October 31, 2013
Grazed from DataCenterKnowledge. Author: Jason Cumberland.
Migrating a traditional application to the cloud isn’t always as complex as it appears. Here are three of the most common misconceptions about moving from a dedicated server deployment to a cloud environment.
Myth 1: The cloud won’t support networking for multi-tier applications.
While software-defined networking (SDN) is undoubtedly white-hot in IT, the reality is that it’s still a developing and unproven technology among enterprise buyers. One hurdle is the unforeseen risks associated with new concepts, such as security groups that are usurping traditional enterprise security rules and firewall designs. For companies delivering SaaS or other enterprise applications, clients are likely to be uncomfortable with the security delivered through these designs. Case in point, this August Amazon Web Services’ security group policies resulted in virtual machine connectivity losses, among other glitches. For end-users in industries such as banking, financial services and healthcare, this kind of concept and security risk can be a deal-breaker…
Moreover, any application written more than two or three years ago was almost certainly written to operate in a traditional 3-tier architecture with separate network segments for web, application and database servers. Generally, each of these tiers has its own firewall rules and load balancing profiles. Re-architecting all of this to function in a flat network can be a multi-year endeavor that isn’t worth the cost when you consider that there are already cloud environments today that support a traditional network architecture…
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