Why Sun's New Cloud CTO Is Targeting Migration of Legacy Apps First - Page 2

Sun's approach to cloud computing at this time is to determine how best to bring legacy applications into it, Tucker said.
In fact, most enterprise apps-including such stalwarts as Oracle and SAP databases and Windows Exchange and SQL servers-fit this description, as they were not designed or optimized for use in cloud systems, which employ newer open-source and SAAS infrastructures.
Mixing and matching old and new at this level is a nightmare if not planned and designed correctly. Open-source and SAAS structures don't actively support legacy software versions; workarounds, patches and other tricks of the trade are commonly used for short-term fixes, but this is not a recommended practice for anything in the long term.
When should an enterprise begin thinking about modernizing its data systems to include a cloud component? It depends on where you are as a company, Tucker said.
"If you're a startup, it makes no sense to buy racks of servers," Tucker told an audience of about 200 at Cloud Connect, a cloud computing conference held Jan. 20 to 22 in Mountain View, Calif. "There are rooms of legacy computers downstairs here in the Computer History Museum-you don't want to spend your startup money on hardware that will join them."
The data center itself has now become the computer, Tucker said, and that specifically is what has caused the current shift to SAAS-oriented structures.
"You can't just take some prepackaged legacy application running somewhere and just throw it into the cloud," Tucker told eWEEK in a separate interview. "With virtualization, over time, we will be almost able to do that. In time, we'll be able to virtualize basically the old data center, and therefore you'll be able to move your applications over into it."

Chris Preimesberger

Chris J. Preimesberger

Chris J. Preimesberger is Editor-in-Chief of eWEEK and responsible for all the publication's coverage. In his 15 years and more than 4,000 articles at eWEEK, he has distinguished himself in reporting...