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Openedition MVS: the System, the Strategy, the Significance: Part III — Observations and Conclusions

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Openedition MVS: the System, the Strategy, the Significance: Part III — Observations and Conclusions BILL CARICO AND WILLEM J. VAN DER ZEL INTEROPERABILITY INSIGHTS OpenEdition MVS: The System, the Strategy, the Significance: Part III — Observations and Conclusions HE PERILS OF OPEN SYSTEMS Many companies have met If the quest for open systems can be called a movement, then the move to "open systems" X/Open (now part of the OPEN GROUP) has clearly become the with limited success. T movement's most visible advocate. X/Open is dedicated to the However, OpenEdition advancement of open systems. Regarding the numerous setbacks experienced MVS's ascendancy by the "open systems" movement thus far, X/Open's World Wide Web home into the UNIX limelight page includes the following candid admissions that set the stage for the ascen- provides a viable option dancy of OpenEdition MVS into the UNIX limelight: for many organizations. "...Contributing to the slow implementation Oracle software. The problems began when a of open systems in the recent past, however, system crash resulted in the "unrecoverable have been a fragmented operating system loss of one-and-a-half-days worth of business environment and confusion about standards data"! Dissatisfied with HP's handling of the for linking those disparate systems together. situation, not to mention the stress and diffi- Users have been confronted with a number of culty experienced explaining to superiors how different "open" operating systems, each so much critical business data could have been offering its own features and benefits. They lost, the manager decided to exercise his rights have also faced a bewildering array of graphi- as a user of "open systems" by replacing the HP cal user interfaces (GUIs), application inter- system with one from DEC. faces, connectivity schemes, and distributed- Though it cost several hundred thousand dol- processing architectures. In fact, users typically lars to re-host the company applications, this spend more of their budget dollars on this "inte- was deemed a prudent move under the gration factor" than on the computer systems circumstances. But problems compounded as themselves during the course of a given year." soon as the DEC equipment arrived, because the Oracle-based business applications failed to So contrary to the claims found in vendor run on the new system. In a state of panic, the glossies, ads, articles, and vendor-funded manager contacted Oracle, who then informed not-so-white papers, the much vaunted open him that his company's applications use unique systems movement heretofore has been met Oracle features that only work when Oracle is with limited success. Even for those companies running under HP-UX. Oracle couldn't offer the with highly-skilled staff, open systems same features in its DEC version, because remains a precarious undertaking, and has DEC's version of UNIX is different from HP's been a waste of money for many. version. Not surprisingly, when asked to pro- For example, one unsuspecting CIO vide free services to help the customer migrate thought he had purchased an "open system" the applications, Oracle declined, stating it after buying Hewlett-Packard (HP) hardware, would have told the customer the port wouldn't the HP-UX (UNIX) operating system, and have worked had they had been asked. © 1996, ACTS Corporation, all rights reserved. TECHNICAL SUPPORT JUNE 1996 INTEROPERABILITY INSIGHTS OPEN SYSTEMS, CLOSED DISCUSSION but too often, discussion of IT strategy ensues non-proprietary standards are in the best UNIX vendors are far from being models of before taking time to agree on exactly what interest of users. That is emphatically not candor when discussing true UNIX limita- the terms being used really mean. It is not true... [as illustrated by] typical non-pro- tions, especially in the areas of performance enough merely to agree that access to infor- prietary standards such as CCITT fax and scalability.This explains why so many mation needs to be more flexible, users need standard or the television standard. They UNIX projects have resulted in utter disaster. to be empowered, applications need to be took a long time to establish and have Pe r fo rmance pro blems occur reg u l a rly on developed more quickly and be more portable been frozen in place for years. Because high-end servers, so much that vendors of once deployed, systems need to be interopera- they were set by committees, they fixed open systems do everything possible to pre- ble, or companies need competitive advan- technology at a lowest-common-denomi- vent open discussion. For example, Oracle's tage. The details must be provided. nator level and have stifled continued Software License and Services Agreement, La c k of detail has caused many to fail whi l e technological development..." under section 7.1 titled Non-Disclosure, para- chasing the fads called cli e n t / s e r ver and open graph two,states "Customer shall not disclose s y s t e m s , or "open cl i e n t / s e rver solutions." In d e e d , ven d o r s may talk about openness and the results of any benchmark tests of the In c re a s i n g l y, those launching swe eping IT promise to adopt industry standards, but ar e Programs to any third party without Oracle's cha n g es have put both their companies and their their actions consistent with their prom i s e s ? prior written approval." A sales representative ca re e r s at risk. Ven d o r s hyping open systems Vendors continue to add unique features to for Oracle told ACTS that such app r oval must clo s e l y res e m b le politicians who deliver stirrin g UNIX to differentiate their versions from each come from the CEO, and is rarely granted. sp e e c hes about wha t needs to cha n g e but pro- other to protect market share. In September Customers are naive if they don't anticipate vide vot e r s with little or no details on how to get 19 9 5 , DEC CEO Robert Pal m e r , in his keyn o t e performance problems when they enter into a fr om point A to point B. The prob lem is com- speech at UNIX Expo '95, made yet another license agreement that prohibits free and open pounded because so many IT strate gists and earnest appeal for UNIX unity: "The industry discussion of a product's performance. In con- te ch n o l o gy decision-maker s simply fol l o w the paid lip service to the need for standards, but trast, MVS performance and scalability has cr owd and do not think for themselves , rely i n g the evidence shows that we have failed." always been op e n l y discussed and debat e d in on wha t they think others are doing. The prob lem lies in the fact that for ven d o rs , public forums. IBM and its user community open systems rep resents potential tension conduct multiple conferences yearly where PORTING BETWEEN PLATFORMS be t w een two conflicting goals. The path to customers are free to speak about problems Ven d o r s of UNIX var iants almost all cla i m openness culminates in systems becoming a and other technical issues. th e y support mul t i - v endor environments and tr ue commodity, so a completely standardi ze d that porting of open systems applications is UNIX would become a commodity product. In IN PURSUIT OF A DEFINITION assured. It is more accurate to say that porting So wh at ex a c t ly is an open system? app l i c a tions from one UNIX var iant to another Figure 1: UNIX-Based Operating Systems Grappling to nail down a definition, Xephon is a possibility, not a guarantee. Company Limited, a world-wide research and A port may even be easy if the app l i c at i o n publishing firm based in Newbury, England, was written in C, pr ovided the app l i c at i o n Vendor Name of OS in October 1994, surveyed 455 executives, st a yed within the boundaries set for th in accept - Sun SunOS and Solaris asking them to define the term open, as in ed de facto and de jure standards for UNIX. Hewlett-Packard HP-UX "open systems." Only four definitions were Ho wever , ea s e - o f - p o r ting is ultimate l y deter- the same: "not prop ri e t a ry " , "n o n - p ro p ri e t a ry " , mined by the app l i c a tion's use of UNIX ser- IBM AIX, OpenEdition MVS "platform independent", and "not sure". Each vi c e s , and the degree these services are softwar e of these answers was given by two people. extensions developed apa r t from any standards AT&T GIS Unix-MPRAS Every other definition was unique. Eighteen th a t are unique to that ver sion of UNIX code. OSF OSF/1 responses were sarcastic, such as "a buzzword Since porting applications from one version DEC Ultrix and to sell products" and "a silly term having no of UNIX can be met with varying degrees of DEC OSF/1 technical meaning, just marketing hype." difficulty, the majority of UNIX variants are Pyramid DC/OSx In an attempt to classify the definitions, more accurate l y labeled as "closed" operati n g Hitachi Data Systems HI-OSF/1-M Xephon came up with three distinct cate- systems.
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