1 / 25

Linux in the Enterprise

Linux in the Enterprise. COSST Symposium October 18, 2003. Bill Hilf. IBM Sr. Consulting I/T Architect Global Linux Technical Lead, SMB billhilf@us.ibm.com. Community develops, debugs, maintains Generally high quality, high performance software

fell
Télécharger la présentation

Linux in the Enterprise

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Linux in the Enterprise COSST Symposium October 18, 2003 Bill Hilf IBM Sr. Consulting I/T Architect Global Linux Technical Lead, SMB billhilf@us.ibm.com

  2. Community develops, debugs, maintains Generally high quality, high performance software Superior security - on par with UNIX, superior to Windows Peer code reviews are Darwinian -- structured/disciplined More information: www.opensource.org Examples of Open Source Software: Apache web server Eclipse app development Gnome desktop environment Mozilla (Netscape) browser Open Office (Star Office) productivity suite Perl programming language Samba file/print SendMail mail server Tomcat application server What is Open Source?

  3. UNIX-like operating system Kernel 2.4 available Kernel 2.6 in beta; production 2H03 Developed / tested by the Open Source community Packaged and shipped by distributors Red Hat, SuSE, Turbolinux Regional distributors: Red Flag, Conectiva, Mandrake, etc... UnitedLinux = open industry consortium providing a binary-compatible Linux distribution What is Linux?

  4. Linux Kernel Information • The Linux kernel version numbers consist of three numbers separated by decimals, such as 2.2.14. The first number is the major version number. The second number is the minor revision number. The third number is the patch level version • There are two stages of kernel releases: “stable” and “development”. Development kernels end in an odd number (2.3, 2.5, …), stable or production kernels end in an even number (2.4, 2.6, …). • Once a kernel is deemed stable, it will move from an odd to even second number for release (e.g., from 2.3.51 to 2.4.0). • You can get a good sense of what the future production state of Linux will be by looking at the development kernel. • http://www.kernel.org

  5. Trends in eBusiness

  6. Open Source Software Fundamentals • Open Source software is a critical component to understanding the overall Linux value proposition • The rationale is that a larger group of programmers not concerned with proprietary ownership or financial gain will produce a more useful and bug -free product • Quality • The Open Source development model relies on peer review to find and eliminate bugs, as well as to enhance or add feature/functionality • Speed • Programmers communicate and develop via the Internet (through newsgroups, online source code repositories, and email) which drives an expedient evolution of the product

  7. Open Source Software Fundamentals • Leadership by merit • Technical merit (coding, design, support, leadership) drives the power positions • The kernel development, in particular, is very disciplined and structured • Driven by need • Open Source software is generally created by those who need to solve a particular problem • There are multiple types of Open Source licenses (http://www.opensource.org/licenses/) • Standards driven by the Linux Standard Base (http://www.linuxbase.org) which develops and promotes standards to increase compatibility across distributions and applications developed on or ported to Linux • Cross-vendor groups, such as the Open Source Development Lab, (http://www.osdl.org) provide benchmarks, tools, and test suites --among many other things

  8. Linux in The Enterprise

  9. Linux Market Broadening

  10. Linux, more than just costs…

  11. Linux Today • 28% CAGR by 2007 (3x any other OS) • Since 2000… • Servers up 50% • Middleware and applications revenue growth 100%+ • Installed license base grew 4M copies to 15 million

  12. Security – CC achievement • IBM and SuSE Linux have achieved Common Criteria Security Certification. The Common Criteria (CC) is an internationally recognized ISO standard (ISO 15408) used by the Federal government and other organizations to assess security and assurance of technology products. • Equivalent to ‘Good Housekeeing Seal of Approval’. Opens the door for internal use in banks, the Pentagon, etc. “The Common Criteria certification of Linux will be a critical factor as Linux is applied to mission critical environments.” -Fritz Schulz, Defense Information Systems Agency

  13. Evans Data Developer Survey – July 2003 • Recent Evans Data Survey Found: • Of more than 400 developers focused on Linux development more than 70% said that the SCO lawsuit will “probably not” or “absolutely not” impact their companies decision to use Linux • Linux users are finding it as easy to migrate their applications from Windows to Linux as from Unix to Linux. Within the first six months 45% of Unix application migrations to Linux have been completed and 47% of Windows application migrations have been completed. • The playing field for Linux is far from decided with 36% of developers preferring commercial versions of Linux and 15% choosing a non-commercial version. The majority of developers are undecided with 49% saying it doesn’t matter.

  14. Linux Strides World Wide Source USAToday/Gartner DataQuest March 2003

  15. IBM’s Perspective on Linux Deployment

  16. IBM Internal Use of Linux

  17. The Future of Linux and Open Source “...the Linux philosophy is ‘laugh in the face of danger’. Oops. Wrong one. ‘Do it yourself’. That's it.” -Linus Torvalds “Linux, which is right next door, and which is not a business at all. It's a bunch of RVs, yurts, tepees, and geodesic domes set up in a field and organized by consensus.” -Neal Stephenson, In the Beginning was the Command Line

  18. v2.0 v2.0.39 v2.1 v2.2 v2.2.23 v2.3 v2.4 v2.4.20 v2.5 v2.5.54 v2.6 v2.7 v2.8 Stable source tree Development source tree Estimate/projection Linux Kernel Version Timeline v2.2.22 FF

  19. Block I/O subsystem rework/enhancements: for better performance, scalability and device support Scalability improvements 16-way SMP scalability on x86 (higher on other architectures) O(1) scheduler, improved locking, synch primitives, IO scheduler improvements, interrupt processing, per-cup page lists, etc CIFS VFS: Common Internet File System LSM: Loadable Security Modules infrastructure for configurable security policies and authentication SCTP important for CGL and for eSDC networking requirements IPv6 testing and new test development, bug fixes, reliability stabilization, new functionality, interoperability improvements IPSec IPv4 TCP serviceability, stabilization and performance improvements PCI Hot Plug DD’s NUMA topology infrastructure, performance enhancements Process affinity Large Block I/O Read-Copy-Update synchronization primitives readv/writev raw I/O and O_Direct Scalable SMP Aware Timers Async I/O Futexes CPU Hot Plug boot code Driverfs SCSI Device Support PowerPC64 architecture support NPTL NGPT kernel prereqs POSIX threading support for signals Exploit of futex for shared mutex NAPI (improves nw dd performance) Removal of 2TB block device limit Up to 16TB on 32-bit archs and up to 8EB on 64-bit archs In kernel module loader Large page support FS enhancements Ext3, JFS, XFS, Reiser, CIFS, smbfs, NTFS, AFS POSIX ACLs and EAs Kernel pre-emption NFS v4 (client and server), and NFS over TCP New Kernel build system X86-64 (AMD) architecture support Key v 2.5/2.6 Features

  20. Native Posix Thread Library (NPTL) http://developer.java.sun.com/developer/technicalArticles/JavaTechandLinux/RedHat/ http://people.redhat.com/drepper/nptl-design.pdf

  21. v 2.7/2.8 Candidate Features • Dynamic memory add/remove • SCSI Multi-Path I/O • Event Logging • Online diagnostics • User space get time of day • Infiniband • NUMA API • MobileIP • 32-SMP Scalability on x86 (and higher on other architectures) • Bug fixing, performance improvements, testing, …

  22. Netcraft server statistics

  23. Thank you • Q&A

More Related