IBM e Server Linux on z Series Module
IBM e. Server™ Linux on z. Series Module 1: Introduction Copyright IBM Corporation 2004
IBM e. Server™ Trademarks § Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both. § Microsoft, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both. § UNIX is a registered trademark of The Open Group in the United States and other countries. § Linux is a trademark of Linus Torvalds in the United States, other countries, or both 2 © 2004 IBM Corporation
IBM e. Server™ Trademarks § IBM, z. Series, z/VM, z/OS, Parallel Sysplex, DB 2, Lotus, Tivoli, MQSeries, and z. Architecture are trademarks of International Business Machines Corporation in the United States, other countries, or both. 3 © 2004 IBM Corporation
IBM ^ Why Linux on z. Series® § Objectives: ØBe USS able to distinguish between Linux on IBM ØDescribe ØWhere z. Series and a scenario under which you would use Linux on z. Series is Linux on z. Series today? ØList 5 ways it is being used today ØList 5 misconceptions about it ØWhat ØList is z. Series and why is it being used today? 9 major advantages of Linux on z. Series ØHow is the z 800 family different from z 900 as far as capacity and features are concerned? ØList 9 reasons to run Linux on z. Series as a guest under z/VM® © 2004 IBM Corporation
IBM ^ Objective: Distinguish between Linux on z. Series and USS Option 1: § UNIX System Services is crucial to the e-business run time environment on z/OS® § It is a key element in supporting middleware and applications, and is an integral part of some strategic solutions such as Web. Sphere® § It provides a sound and robust UNIX environment, bringing with it the qualities of service (availability, security, workload balancing) expected and delivered with z/OS § USS will continue to be enhanced to support the e-business infrastructure, as well as vendor and customer applications running on z/OS © 2004 IBM Corporation
IBM ^ Objective: Distinguish between Linux on z. Series and USS Option 2: Linux on z. Series § Linux on z. Series is a new environment with rapidly growing acceptance in the marketplace § It brings a large number of applications and faster porting of existing UNIX applications that do not need to exploit z/OS features or qualities of service § It enables the consolidation of a large number of Linux servers onto a single hardware platform © 2004 IBM Corporation
IBM ^ Objective: Distinguish between Linux on z. Series and USS When to use USS § When you need the full range of z/OS Qualities of Service § To take full advantage of the platform's strengths in availability, handling mixed workloads, security, transaction processing and performance § To optimize database access performance when running an application in the same address space as DB 2® § For access to the full set of advanced capabilities of Work. Load Manager (WLM) § To combine existing OS/390 applications with newer components like files and datasets that run in a UNIX environment § To provide the highest degree of availability § To utilize Parallel Sysplex capabilities § To utilize Recoverable Resource Management Services (RRMS) functionality § When you need advanced security features such as those provided by Remote Access Control Facility (RACF®) © 2004 IBM Corporation
IBM ^ Objective: Describe a scenario under which you would use Linux on z. Series When to choose Linux on z. Series Porting a C/C++ application to Linux on z. Series is easier and faster than a port to USS Using the System Administration Facility, Linux on z. Series provides an environment that supports hundreds of images Consider porting applications that need 64 -bit addressing to Linux on z. Series Applications that need full ASCII capabilities or that need ASCII double byte character sets are supported in Linux on z. Series § When speed to market is crucial, utilizing LPARs to simultaneously develop, produce and test on the same machine can give a crucial edge § Linux on z. Series provides a rich development environment for application programmers © 2004 IBM Corporation
IBM ^ Objective: Describe a scenario under which you would use Linux momentum on z. Series Linux (a combination of all major distributions) will become the dominant server operating system in the United States by 2005. --Stacey Quandt, Giga, Business 2. 0, June 17, 2002 By 2006, Linux on z. Series will be a key foundation for a strategic cross development platform environment, accelerating UNIX server consolidation, while creating a powerful alternative to Windows. NET. --Gartner, May 2002 © 2004 IBM Corporation
IBM ^ Objective: List 5 ways Linux on z. Series is being used today Top uses for Linux today © 2004 IBM Corporation
IBM ^ Objective: List 5 ways Linux on z. Series is being used today Infrastructure solutions: Optimized e-servers and software for Linux Infrastructure Servers: File/Print Web/Application development Content/Caching Security Advantages: Low cost Highly reliable Rapid setup Innovative packaging Infrastructure Software: DB 2 Universal Database Lotus® Domino collaboration Tivoli® Systems Management MQSeries® messaging Web. Sphere Advantages: Scalable Open standards Industry proven © 2004 IBM Corporation
IBM ^ Objective: List 5 ways Linux on z. Series is being used today Consolidate workloads across the organization: Simplified infrastructure with IBM and Linux • Workload Consolidation: −Replace many with few −Optimize assets • Advantages: −Reduce costs −Get proven e. Server reliability −Use virtualization servers −Dynamically manage workloads © 2004 IBM Corporation
IBM ^ Objective: List 5 ways Linux on z. Series is being used today Linux on z. Series clusters: Solutions for complex workloads • Benefits of using clusters with Linux: • High performance computing • 24 x 7 availability with failover protection • Horizontal and vertical scalability without downtime • Large capacity data and transaction volumes including support for mixed workloads • Handling of unexpected peaks in workload • Disaster recovery • Advantages: • Supercomputing performance at "mass market" prices • Industry leading IBM cluster software • GPFS - General Parallel File System • CSM - Cluster Systems Manager • Globus toolkit • IBM factory installed and delivered © 2004 IBM Corporation
IBM ^ Objective: List 5 applications ways Linux on serve z. Series many is beinglocations: used today Distributed Replicate function across the enterprise • Distributed solutions with Linux on z. Series: Ø Geographically dispersed Ø Serve more customers and/or employees • Advantages: Ø Low cost, small footprint e-server Ø High reliability and stability Ø Secure Ø Easily replicated Ø Centrally managed Ø IBM world-wide support and implementation © 2004 IBM Corporation
IBM ^ Objective: List 5 ways Linux on z. Series is being used today Application solutions: • IBM Business Partner and Independent Software Vendor (ISV) solutions: Ø Enable e-business initiatives Ø Deliver industry vertical applications Ø Leverage Business Partner and ISV expertise • Advantages: Ø Bundled e-servers Ø ISV applications Ø Low cost Ø Optimized solutions Ø Reduced implementation time © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series Misconceptions about Linux on z. Series § § § Does not scale Is not ready for the enterprise Lacks business applications No security Skills are scarce © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series is scalable Database - world record TPC-H benchmark DB 2 v 7. 2; 4 Intel® 900 MHz Pentium III Xeon processors 74% faster than the best Windows-based result File Serving PC Mag's performance tests for file servers “. . . Linux on z. Series with Samba significantly outperformed Windows 2000”, 11/01 “. . . on the fastest HW while handling largest number of clients, z/Linux's throughput was 78% faster” z. Series Servers – Linux on z. Series vs. Solaris 12 Linux on z. Series partitions equaled 9 x 4 CPU Sun 420 R servers Linear scalability for multiple Linux on z. Series instances and multiple users © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series is already used for enterprise Cluster Environment Peak Operation Downtime Per Year: (Standish Research Group 2001) • Microsoft. . . 30 hours • Linux on z. Series. . . . 14 hours Google runs Linux on z. Series: 100+ million queries per day Average response times less than half a second • IBM service/support: • Level 1 -2 -3 support © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series ISVs are adopting Linux (Linux on z. Series does have business applications) § 3, 800 Linux on z. Series applications in IBM Global Solutions Directory 4 SAP, Sendmail, j. BASE, Relavis, Sanchez, Mission. Critical § Linux on z. Series, QAD, SAS, Steeleye, Secure. Works, Fluent Eclipse: open-source, integrated foundation for application development § Supported by 150+ ISVs with over 267 applications § 48% of developers worldwide (40% in North America) plan to port most of their apps to Linux on z. Series* (WHERE IS THE *? ) § 39% of Int'l (34% of North American) developers have written Linux on z. Series applications § 50%+ have confidence in Linux on z. Series for mission-critical apps § Worldwide IBM Porting Centers for Linux on z. Series © 2004 IBM Corporation
IBM ^ Objective: 5 misconceptions about Linux on z. Series Linux List is ubiquitous (Linux on z. Series does have business applications) § § § § § Manufacturing Industry Wholesale/Distribution Retail Public Financial/Insurace Education Service Technology ISPs/ASPs Transportation © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series Security in Linux on z. Series with a central z/OS (RACF) LDAP Server: Ø Allows you to keep Linux on z. Series user information and passwords Ø Allows you to make use of existing RACF user definitions for Linux on z. Series users Ø Benefits from the availability/scalability of z/OS systems for central data storage Ø Has Lightweight Directory Access Protocol (LDAP): an open standard protocol for accessing information services © 2004 IBM Corporation
IBM ^ Objective: List 5 misconceptions about Linux on z. Series skills are not scarce IBM Linux on z. Series Scholars Challenge Ø 1, 462 students entered Ø 664 colleges represented IBM Learning Services Ø 40 courses Ø www. ibm. com/training/spotlight/linux Porting Solaris applications to Linux Ø 80+% of APIs are identical Ø Less than 15% require simple translations or masks Ø Less than 5% of the APIs may require application rework "If your IT organization supports UNIX today, you are well positioned to support Linux. UNIX skilled programmers can easily and quickly develop into Linux programmers. “ © 2004 IBM Corporation
IBM ^ Objective: What is z. Series and why is it being used today? What is z. Series? § Four key features of z/Architecture include: § A full 64 -bit architecture that provides for 24, 31 and 64 -bit coexistence § Intelligent Resource Director (IRD): provides for an exclusive way to intelligently direct the processor and I/O resources to priority workloads running within an LPAR cluster § Hiper. Sockets: an internal facility for z/Architecture that permits a TCP/IP network to be established between LPARs © 2004 IBM Corporation
IBM ^ Objective: List 9 major advantages of Linux on z. Series Benefits of Linux on z. Series 1. Scalability (ten to thousands of images depending on workload) 2. z/Architectecture exploitation: IRD & WLM 3. Integrated business solutions: data richness of z. Series and applications 4. Flexibility and openness of Linux with the Quality of Service (QOS) of z. Series 5. z. Series customers are offered additional opportunities to leverage their investments through Linux 6. Consolidation benefits while maintaining one server per application 7. Reduced Total Cost of Ownership (TCO) 8. Improved service level: z. Series QOS 9. Speed to market time increased © 2004 IBM Corporation
IBM ^ Objective: List 9 major advantages of Linux on z. Series: The best of both worlds Gives you: Ø Ø Ø The most reliable hardware platform available Redundant processors and memory Error detection and correction Remote Support Facility (RSF) Centralized Linux systems that are easier to manage Scalability Ø Physical - scale to 16 application processors and up to 3 dedicated I/O processors Ø Logical - scale to hundreds of Linux images Ø Ø Ø Non-disruptive capacity upgrade on demand Support for mixed workloads Complete workload isolation High speed inter-server connectivity Virtualization technology when run on z/VM © 2004 IBM Corporation
IBM ^ Objective: List 9 major advantages of Linux on z. Series 3 -tierdiagram Logical, 2 -tier Physical Linux on z. Series © 2004 IBM Corporation
IBM ^ Objective: How is the z 800 family different from the z 900? Linux on z 800 © 2004 IBM Corporation
IBM ^ Objective: How is the z 800 family different from the z 900? Linux on z 900 © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM 9 Reasons to run Linux as a guest under z/VM 1. Resource sharing among multiple Linux images running on the same VM system 2. Server hardware consolidation 3. Virtualization 4. Linux guests can transparently take advantage of VM support for z. Series hardware architecture and RAS features 5. High-performance communication among virtual machines running Linux and other operating systems on the same processor 6. Minidisk device driver for Linux on z. Series can access all z/VM supported DASD types 7. Data-in-memory performance boosts are offered by VM exploitation of the z/Architecture 8. Control and automation 9. Horizontal growth © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Linux as a guest under z/VM § Supports ten to thousands of images § § § depending on workload Supports Linux for S/390 and Linux on z. Series guests Complements the z. Series Integrated Facility for Linux (IFL) with attractive pricing terms and conditions Exploits z/Architecture Offers 64 -bit real storage support: real storage constraint relief Offers 64 -bit virtual support: run 64 -bit guest systems on z. Series © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 1: Resource control Allocate system resources on a per-Linux-image basis © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 2: Consolidation © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 3: Handling Linux guests Integrated Facility for Linux* (IFL): • Additional engines/processors dedicated to Linux-only workloads • Supports z/VM, Linux on S/390 and Linux on z. Series • Available on 9672 G 5/G 6, Multiprise 3000 and z. Series • Lower price than standard engines • Begin deployment or consolidation of Linux, UNIX and NT workloads to z. Series immediately • Traditional z. Series software charges unaffected • IBM z. Series S/390 software and middleware • ISV products *Only usable in LPAR mode and cannot be "mixed" with standard processors © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Sample IFL configuration z. Series 900 model with 3 IFL processors and z/VM V 4 © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 4: Take advantage of VM support for z. Series • - Performance collection and reporting for every Linux image • - Log accounting records for charge back • - Direct console output from your Linux systems to a single console • using "Set Observer" or Single Console Image Facility (SCIF) • - Automate system actions based on console output • - System Automation with CMS, Rexx, Pipelines, PROP • - Userid and password control for each Linux image • - Record and report hardware errors using EREP • - Dynamic I/O reconfiguration: add more disks without interruption © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 5: Virtual networking/communication One Linux guest connects to external networks Also connects to multiple guest LANs Provides external routing and firewall services for guests Other Linux guests connect to individual guest LANs Virtual Hiper. Sockets An ideal way to connect a server farm to z/OS using real hipersockets © 2004 IBM Corporation
IBM e. Server™ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 6: DASD access Ø Minidisks are partitions or sections of a full volume • one-to-one relationship between the minidisk and the Linux partition - makes control access easier and “keeps things straight” - full volumes must be used if running Linux in an LPAR Ø DASD is basically your hard drive Ø Direct Access Storage • Directly attached disk or tape storage • I/O requests access the devices directly • Easy to deploy Linux on z. Series includes a minidisk device driver that can access all DASD types supported by z/VM 37 © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 7: Data-in-memory § Use VM's data-in-memory techniques for improved performance § Virtual Disks in Storage (excellent swap device) § Minidisk cache (high-speed access to shared data) © 2004 IBM Corporation
IBM e. Server™ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 8: Control and management Systems Management: data backup using Shark and TSM 39 © 2004 IBM Corporation
IBM ^ Objective: List 9 reasons to run Linux on z. Series as a guest under z/VM Reason 9: Horizontal growth © 2004 IBM Corporation
IBM ^ Recap Ø What environments are offered for z/OS? Unix System Services (USS) and Linux Ø Where is Linux today? – – The 5 ways it is being used today are: workload consolidation, clustering, application solutions, distributed enterprise and infrastructure solutions The misconceptions about Linux are: does not scale, is not ready for enterprise, lacks business applications, has no security, skills are scarce © 2004 IBM Corporation
IBM ^ Recap Continued ØWhat are the major advantages of Linux on z. Series? 1. Scalability (ten to thousands of images depending on workload) 2. z/Architectecture exploitation: IRD & WLM 3. Integrated business solutions: data richness of z/Series and applications 4. Flexibility and openness of Linux with the z. Series QOS 5. z. Series customers are offered additional opportunities to leverage their investments through Linux 6. Consolidation benefits, while maintaining one server per application 7. Reduced Total Cost of Ownership 8. Improved service level: z. Series QOS 9. Speed to market time increased © 2004 IBM Corporation
IBM ^ Recap Continued ØWhy run Linux as a guest under z/VM? Increased performance, growth and scalability 4 4 4 Server consolidation enables horizontal growth Three-tier architecture on two tiers of hardware Extensive support for sharing resources Virtual networking Complete isolation of Linux images if required Increased productivity Development and testing 4 Production support 4 Improved operations Backup and recovery 4 Command control 4 © 2004 IBM Corporation
IBM ^ © 2004 IBM Corporation
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