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Access "Easing away from ESCON"

Alex Barrett, Trends Editor Published: 19 Oct 2012

At issue: ESCON, the protocol that pre-dated FICON as a systems-to-storage connection, is incompatible with the newer FICON-based systems. This tip looks at various ways you can tackle this dilemma. In 1999, IBM began selling FICON, the mainframe equivalent to the Fibre Channel Protocol (FCP), as a way to connect mainframe systems to disk and tape storage devices. Following in FCP's footsteps, the company is expected to announce 4 gigabit per second (Gbps) FICON in 2006. But ESCON, the protocol that pre-dated FICON as a systems-to-storage connection, is tenacious and still figures prominently in many mainframe shops, says Greg Schulz, senior analyst at the Evaluator Group Inc., in Greenwood Village, Colo. "There's still quite a bit of ESCON out there," he says, on devices like disk arrays and tape libraries, as well as on peripherals like printers, check sorters and even ATMs. Related information Fast Guide: Fibre Channel basics Fast Guide: Advanced Fibre Channel Storage Clips: Brocade offers FICON for IBM mainframe On paper, migrating from ESCON seems like ... Access >>>

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