IDC Study Favors Unisys ClearPath

An independent study conducted by International Data Corporation (IDC) demonstrates that Unisys ClearPath enterprise servers are superior to IBM System/390 and high-end UNIX systems for large-scale, I/O (input/output) intensive online transaction processing (OLTP) applications. The study, published in an IDC Bulletin, draws on other data to suggest that staffing costs to support a Unisys ClearPath system in an OLTP application are lower than those required to support an IBM System/390 or UNIX computer for the same application."The Unisys ClearPath architecture and integrated software provide clear and consistent technical and cost advantages for customers with high-end I/O-intensive OLTP applications," states analyst David Floyer, who authored the Bulletin. "Unisys users should continue to run their existing and new I/O-intensive OLTP applications on Unisys ClearPath servers."IDC was impressed by the Heterogeneous Multi Processing (HMP) architecture that is the foundation of ClearPath, allowing direct and seamless access to the mainframe data from Windows NT and UnixWare applications. According to IDC, this allows users to develop new applications on Windows NT and UnixWare around the mainframe and directly access mainframe data without some of the high overheads of client/server processing.IDC Bulletin 18086, entitled "Unisys ClearPath Mainframes Continue to Surprise," was published as part of IDC’s Commercial Systems and Servers service. The bulletin is available on the Unisys ClearPath Web site at

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