Posts Tagged ‘SHARE’

Storage Networking Performance Matters For Mainframe FICON Environments

Deirdre Wassell

Director, Dell EMC Connectrix Product Marketing
From mainframe operations, to systems programming, to storage product management, to technical product marketing, Deirdre Wassell’s career reflects her prodigious interest in technology.

A flashback to working in a house of cards…

My first role in IT was working in a data center of a reinsurance company as a Computer Operator.  I was responsible for running the company’s reporting programs on the UNIVersal Automatic Computer or “UNIVAC” mainframe.   To run a program on the UNIVAC mainframe, I’d go to the “Program Closet” and grab the pertinent program, which was a stack of punched cards, and then I’d feed the cards through the UNIVAC card reader and the report would be created.  Fun!

punchcards stacked
Not fun…sometimes a card, which represents a line of code or an instruction, would get damaged and I’d have to recreate it using a keypunch machine.  If the card were severely damaged, I’d have to go to the “Source Code Closet”.  The Source Code Closet contained the Master Program Decks.  Using the card from the Master Program Deck, I’d carefully replicate the damaged card by typing the instruction using the keypunch machine and then I’d rerun the operating deck through the card reader to produce the report.    Memories…

 Flash-forward to 2016; the cards are gone and the mainframe game has changed
Mainframe customers are expanding the role of their highly secure environments to repositories of enterprise data for web servers and web-based application services.  Every day more and more transactions originate from mobile devices that end up at mainframes for retail purchase transactional recording.   The number of transactions occurring daily along with traditional online transactions is in the millions and growing with no end in sight.

Bottom line–the mainframe has evolved to be the platform of record for 3rd platform applications. (more…)

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