By convincing a big majority of one of the most demanding audiences in the world – the high-end IBM Corp mainframe base – that its technology is the answer for fast, secure high-volume disk array storage, EMC Corp has little left to prove, and Tandem Computers Inc sees no point in re-inventing the wheel. Doing the Hopkinton, Massachusetts company’s reputation no harm at all, the Cupertino fault-tolerant systems pioneer has given EMC an OEM contract for its new ModArray series of storage subsystems, and Tandem will offer it as a fully redundant, low-cost-per-Megabyte RAID storage subsystem for its Integrity NR line of scalable, high-availability Unix servers. Tandem is offering the arrays at between $1.50 per Megabyte when you want a fully populated 206Gb subsystem, $2.50 per Megabyte when your requiremnt is a more modest 4Gb or so.