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Understanding Compatibility Across Operating Systems and Architectures: Insights from Sun and IBM

This detailed guide explores the compatibility landscape of operating systems and architectures as addressed by Sun and IBM. Key topics include binary compatibility across OS versions, smooth transitions from HP-UX to Itanium, and the challenges faced by Sun and IBM customers in achieving compatibility on Itanium processors. Discover the nuances of source and data compatibility and the implications of transitioning between Linux, Solaris, and AIX. Gain insights into how these alignments affect application deployment and performance for mission-critical environments.

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Understanding Compatibility Across Operating Systems and Architectures: Insights from Sun and IBM

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Presentation Transcript

  1. Ask Sun & IBM About Compatibility • Compatibility across operating system versions • Compatibility across architectures • Linux compatibility

  2. Ask Sun and IBM about binary compatibilityacross Operating System versions • Ask Sun and IBM if they offer complete binary compatibility across OS versions and with new server hardware. • New versions of HP-UX are transparent to customer and ISV applications; no recompile, no relink, no retest. • Sun Ultrasparc II customers must recompile to benefit from Ultrasparc III • IBM customers must recompile 64-bit applications when moving from AIX 4.3.3 to AIX 5L

  3. Ask Sun and IBM about compatibilityacross architectures • Ask Sun and IBM how they will move their customers to Itanium • HP-UX customers experience a smooth transition to the Itanium Processor Family: • binary compatibility; PA-RISC applications execute transparently on IPF • data compatibility; no data conversions • source code compatibility; compile on IPF for native performance without any source code modification • IBM and Sun customers have no easy or clear path to Itanium: • no binary compatibility • no data compatibility

  4. Ask Sun and IBM about Linux compatibility • Ask Sun and IBM about compatibility between Linux and Solaris and AIX • HP provides source compatibility today and future binary compatibility (2003) from Linux on IPF to HP-UX 11i on IPF • Develop on Linux/IPF and deploy on HP-UX 11i for mission critical capabilities (reliability, availability, performance scalability, security) • IBM cannot provide binary compatibility (no AIX for IPF) • Sun cannot provide binary compatibility (no Solaris for IPF)

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