Apr 12, 2018
Guest Author: Eric Sanders
Keep up with the latest views and information from ShoreGroup, our partners, and our customers.
[Update to article: ShoreGroup Solutions was acquired by ATSG in November 2019.]
When you plan an on-prem to cloud migration, you have several strategic options to choose from. The two main approaches to cloud migration are known as greenfield and brownfield, and choosing which one is right for your organization is one of the first steps in any major migration.
The terms “greenfield” and “brownfield” are used in a variety of industries to refer to differing strategic approaches to development. “Greenfield” typically refers to ground-up projects, while “brownfield” projects are built around previously developed structures.
In the Cloud migration space, greenfield and brownfield strategies describe what amount of legacy on-prem infrastructure one holds on to post-migration.
With a greenfield strategy, a whole new infrastructure is built in the Cloud using a public, private, or hybrid model. Then data, operating systems, and applications are transferred to this new infrastructure in their entirety.
A brownfield strategy, on the other hand, only involves moving some functions from one system to the other. Often, proprietary systems that are difficult to replicate or those that hold particularly sensitive information will be kept on-prem during a brownfield migration.
There are advantages and disadvantages to each of these approaches. Let’s take a detailed look at each:
Different stakeholders will have different opinions on the benefits of greenfield and brownfield migrations, so it’s important for business leaders to maintain objectivity. Greenfield migration might sound wonderful when discussing options with a cloud provider who has a financial imperative to upsell you into a bigger, better cloud package. On the other hand, your IT leadership may be hesitant to use a greenfield strategy due to their own unfamiliarity with cloud systems.
Shifting from your legacy system to the Cloud involves a fair amount of risk. When making a big decision like this, it’s important to do your homework. There’s no right answer for every organization, and neither greenfield or brownfield is an inherently better choice—what’s important is that you determine what’s right for your unique situation.
Eric has over 20 years of experience in the delivery of sophisticated public and private cloud, managed services, telecommunications solutions, and consulting services to world-class fortune 500 customers. Acutely tuned to key market drivers, trends, and conditions related to the continuing changes in the managed services, cloud, and telecom arena, he offers a big-picture perspective to the Cloud and the emerging technologies marketplace.
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