HP announced today that in the past two years, it has helped more than 250 customers worldwide to migrate from mainframes to Integrity-based servers. According to John Pickett, worldwide manager of HP's mainframe alternative program, the vast majority of those mainframe shops have made the jump to Integrity machines running HP-UX, but a few have moved to Windows and others have opted for the fault-tolerant NonStop environment. Many, having made the jump, also deploy Linux on their iron.

The mainframes that have been replaced have the usual mix of IBM systems software - COBOL applications, VSAM files, CICS transaction monitors, DB2 and IMS databases, and such. About 80 per cent of the code that is running on the mainframes is homegrown stuff, which means HP needs to partner with Micro Focus, Clerity, Relativity Technologies, TmaxSoft, and others with application rehosting tools designed to move mainframe apps to other platforms.

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