IRS upgrades to smaller, faster mainframes

IRS upgrades to smaller, faster mainframes

By Preeti Vasishtha

GCN Staff

FEB. 9—The IRS has consolidated 67 legacy mainframe computers into 20 smaller, faster mainframes to speed response to taxpayer inquiries.

'This absolutely fits into the latest IRS [modernization] blueprint,' said Toni Zimmerman, the agency's acting chief information officer.

The consolidation, which took place over several years, involved upgrading mainframe computers from IBM Corp. and Unisys Corp. to newer models from those manufacturers. The agency replaced Unisys ClearPath 2200 series systems with models in the 4800 series in 1998, and 6800s in 1999. IBM 4381, 9121 and 9221 models running MVS have been upgraded to 9672 RA5 and 9672 RY5 models running OS/390.

The new mainframes will also increase data storage and data protection capabilities, officials said.

'The mainframe consolidation project provides a solid foundation from which to build modernized systems,' IRS commissioner Charles O. Rossotti said. 'We have built a state-of-the-art mainframe environment that supports our mission to deliver top-quality service to taxpayers.'

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