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z/Linux or Linux on the Mainframe

z/Linux or Linux on the Mainframe. Eric K. Dickinson Presenter. Agenda. Biography Disclaimer The Mainframe Must Die! zLinux. What Qualifies Me to Present?. Been a nerd since 1979 Fixed computers and radars in the army AT&T Computer Systems System 5v4 1986

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z/Linux or Linux on the Mainframe

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  1. z/LinuxorLinux on the Mainframe Eric K. Dickinson Presenter

  2. Agenda • Biography • Disclaimer • The Mainframe Must Die! • zLinux

  3. What Qualifies Me to Present? • Been a nerd since 1979 • Fixed computers and radars in the army • AT&T Computer Systems System 5v4 1986 • Became Richard Stallman fan 1989 • Became Patrick Volkerding fan in 1993 • Installed first z/Linux 2007 • Became Government production 2009

  4. Presentation • Not sponsored by the Government • Not connected with the Government • Not endorsed by the Government • This is purely presented as a hobbyist.

  5. The Mainframe Must Die! • Perceptions of the Mainframe • Words Hurt • Expensive • Huge • Dinosaur • zSeries Servers • Enterprise • Scalable • Velociraptor

  6. zSeries Server Vocabulary • LPAR • FICON and FCP • DASD • Cryptography Accelerator • z/VM • 64bit Operation • IFL • Books

  7. LPAR • Hypervisor • Virtualized Systems • Physically Unconnected • Hipersockets • 60 LPARS • Memory Isolation • Variable Workload

  8. FICON and FCP • Both • 4-8G • 1600 MBps • Fiber Connectivity • Multiple Concurrent • Additional CRC • Same Cables as FCP • Fiber Channel Protocol • Switched Fabric • SCSI

  9. DASD • zLinux uses • Direct Access Storage Device • CKD Count Key Data • FBA Fixed Block Architecture • FCP • SAN • NAS • SCSI

  10. Cryptography Accelerator • Off-loads Cryptography Processing • 128 bit AES • DES • SHA • Independent Random Number Generator

  11. z/VM • Hypervisor • Monitoring • Tunable • Isolated Memory • Hipersockets

  12. 64bit Operation • 31 bits? • 64 bits?

  13. IFL • Integrated Facility for Linux • Tuned to Only Linux Processor Instructions • 256 Theoretical guests.

  14. Books • Processors and Memory are in “Books” • Hot Swappable • Add Processors Hot • Add Memory Hot

  15. z/Linux • Is It Really Linux? • Distributions • Configurations • Strengths • Weaknesses • Well Suited For • Who uses it? • How Do I do it?

  16. Is It Really Linux • Not Emulated • Complete Native Operating System • Formally Released 2000 • LinasVepstas • Big-Foot, Think Blue • Open Source • Gartner Reports the Future of Government and Big Business • Makes IBM OSS friendly

  17. Distributions • Red Hat RHEL6 • Novell SuSE SLES 11 • Debian • Gentoo • Slackware • CentOS • Fedora • Etc

  18. Configurations • Just Like Real Linux • Multiple Network Interfaces • Logical Volume Management (Grow on the Fly!) • RPM, APT-GET, YUM, YAST and Source • LAMP • Oracle, DB2, MySQL • PHP, Perl, JBoss, Java, Ruby (This list goes on)

  19. Strengths • Costs (Most Important) • Enterprise Class • High Availability • Standard Development • High I/O • Industry Direction • Security • Support • Ubiquity

  20. Weaknesses • Processor Intensive • Package Availability • z/VM Knowledge

  21. Well Suited • LAMP Applications • CMS (Content Management System) • Wiki (Mediawiki, Twiki, Swiki…..) • Blogs (WordPress…..) • CMS (Drupal, Openpublic, Joomla, OpenPublish….) • Databases • MySQL, Oracle, DB2, Postgress …… • Email • Sendmail, Postfix…. • Security • Scanning (Nessus, Satan, Sara… • Firewall – IPTables • So Many Others

  22. Who Uses z/Linux? • CMS Center for Medicade/Medicare Services • NIH National Institutes of Health • SSA Social Security Administration • State Farm • Many others

  23. How Do I Do it? There is plenty of help on the internet. Detailed instructions may be found • http://www.turbohercules.com/projects/zlinux/ • http://linuxvm.org/info/howtos/hercules.html Support may be found at • http://www.turbohercules.com/services/ • http://www.hercules-390.org/

  24. Greening the Data Center • No Additional Power • No Additional Cooling • No Additional Floor Space • Use Resources More Efficiently

  25. Questions?

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