Mainframe & Open Systems A Deep Dive Comparison & Workshop

Transcription

1 Mainframe & Open Systems A Deep Dive Comparison & Workshop Dennis Wenk Senior Manager, Competitive Intelligence; Emerging Technology Symantec dennis_wenk@symantec.com Career: IT Career Began in 197, Principal Resiliency Architect, Symantec EMC Consulting Private Cloud Architect, HDS Global Business Consultant, IBM Global Network Outsourcing Project Executive, Comdisco Western of Director Technology Consulting, KPMG Senior Manager of IT Operations Consulting, Heller Financial VP/Information Processing Education: Masters Business Administration (MBA) in Accounting and Finance, BS in Computer Science from Northern Illinois University Certifications: Certified Competitive Intelligent Professional Certified Organizational Resilience Executive (CORE) ITIL Service Management Certified Information Systems Auditor (CISA), Certified Systems Professional (CSP), Certified Data Processor (CDP) Published in Information Week, Computer Performance Review, Computer Measurement Group, Trends and Topics, Continuity Insights, Infosystems, DR Journal Advisory Board to Continuity Insights, Chair the Technology Committee Served as Cloud Special Interest Group Leader for the Outsourcing Institute; Business Continuity Focus Expert for ITIM Awarded Best Management Paper from Computer Measurement Group, Runner up RiskArticle.com Gartner Group, ISACA,SHARE, IT Risk Expo, CampIT, IDC, DRJ Continuity Insights, Financial Executives May 11, 006 Institute, Midwest Telecomm Conference, DPMA, Computer Measurement Group, NOREX, CPM Table of Contents Some Basic Rudiments 1 Basics & Background The Mainframe Architecture Input Transformation Output 3 Network & the Internet Compute Network Store Open Systems & 3 Tier Architecture Storage & SAN 6 Discussion Q&A 3 1

2 Basic Computer System 11-6 Mainframe Computer System Single Computer, Clustered, and Multicomputer Architectures

3 The Physical Data Path DATA Logical to Physical Table of Contents Basics & Background The Mainframe Architecture Network & the Internet Open Systems & 3 Tier Architecture Storage & SAN Discussion Q&A 11 Mainframe - Single Computer Architecture Places all information system resources on a single computer system and its directly attached peripheral devices Users interact with the system via simple input/output devices directly connected to the computer Requires all users be located near the computer All software lication functions are realized on a mainframe computer (server host) server-based architecture Advantage: Simplicity of maintenance: relatively easy to design, build and operate Disadvantage: The capacity limits make single computer impractical or unusable for large ISs: cannot provide all the required processing, data storage, and data retrieval tasks. However, many systems require more computing power than one single machine can provide (a clustered or multicomputer architecture is required) 1 3

4 Decades of the Mainframe Mainframe The Physical Innards Mainframe Computer System Mainframe Storage APP Logical Partitions APP z/os Linux CPU

5 Mainframe Storage 17 Mainframe To the Internet Table of Contents 1 Basics & Background The Mainframe Architecture 3 Network & the Internet Open Systems & 3 Tier Architecture Storage & SAN 6 Discussion Q&A 1 9 0

6 The Magic of Networking World Wide Web Web began with two innovative ideas: Hypertext A document containing links to other documents Uniform Resource Locators (URLs) A formal way of identifying links to other documents Invention of WWW (1989) By Tim Berners Lee at CERN in Switzerland First graphical browser, Mosaic, (1993) By Marc Andressen at NCSA in USA; later founded Netscape CERN - Conseil Européen pour la Rechèrche Nucléaire (Berners-Lee, T. (000) Weaving the Web. New York: HarperCollins. P. ) NCSA - National Center for Supercomputing Applications 1 The Internet How the Web Works Main Web communications protocol: HTTP: Hypertext Transfer Protocol Server Computer Client Computer HTTP Request HTTP Response Clicking on a hyperlink or typing a URL into a browser starts a request-response cycle A request-response cycle: includes multiple steps since web pages often contain embedded files, such as graphics, each requiring a separate response. 3 6

7 LAN to WAN Network Firewalls 6 Network Switched Connecting Devices via Network Protocols Network Protocols 7 8 7

8 1 3 6 Table of Contents Basics & Background The Mainframe Architecture Network & the Internet Open Systems & 3 Tier Architecture Storage & SAN Discussion Q&A Application Architectures Determined by how functions of lication programs are spread among clients and servers Host based Architectures Server performs almost all functions Client based architectures Client performs most functions Client server architectures Functions shared between client and server 9 30 Server Operating Systems Blade Server Innards

9 Server Functions Open Systems Logical Functions 33 3 Three-tier architecture Three tier Structure Enterprise data center architecture Workload characteristics Web NAS filer Front end Web serving Web content access Little resources other than networking, transient data Workload isolation NAS filer Fc san Mid tier Application business logic Business transactions, commit/update Large amounts of CPU and memory Application Data base Fc san Workload isolation Back end Data base query/response Large amounts of CPU and memory, Fast storage, Low latency networking 36 9

10 Inefficiencies of the Traditional Data Center Architecture Functions within 3 Tier Architecture Enterprise data center architecture Web NAS filer NAS filer Inefficiencies Lack of Automated Controls Underutilized Servers Higher Labor Costs Slow Recoveries Reactive 10% 60% Utilization Poor Performance Application Fc san Multiple Technologies 10% 0% Premium Higher Labor Costs Data base Fc san Over Provisioned Storage 1% 0% Utilization Out of Space 38 1 Basics & Background Table of Contents Storage DAS, SAN, NAS The Mainframe Architecture 3 Network & the Internet Open Systems & 3 Tier Architecture Storage & SAN 6 Discussion Q&A

11 Open Systems Storage Alternatives 1 STORAGE RAID STORAGE RAID 3 11

12 Storage Area Networks Tiered Storage 6 Tiered Storage Solutions Storage Zoning 7 8 1

13 The Host Bus Adaptor (HBA) Managing Data Protection Silos Physical Silo Team # Backup Admin Virtual Silo Team #1 VM Ninjas Database Silo Team #3 DB Admin Storage Silo Team # Storage Admin Complexity Exploding data Storage, CapEx, and OpEx costs Application silos driving separate tools Fragmented backup tools, longer recovery Risk from too many unconnected processes 9 0 Compliance and Retention Closing the Management Gap 0 0 H i t a c h i 1 D 0 0 H i t a c h i D 13

14 Table of Contents A taxonomy for cloud computing 1 Basics & Background The Mainframe Architecture 3 Network & the Internet Open Systems & 3 Tier Architecture 6 Storage & SAN Discussion Cloud Q&A In this diagram, Service Consumers use the services provided through the cloud, Service Providers manage the cloud infrastructure and Service Developers create the services themselves. (Notice that open standards are needed for the interactions between these roles.) Each role is discussed in more detail in the following sections 3 The Challenge of Applications in the Cloud VBS Manage SLAs for Multi Tier Cloud Applications Increased Operating System Heterogeneity Continuing movement towards virtualization More mission critical lications being virtualized Application being stretched across different tiers Increased complexity in designing for high availability Consuming lications as a service from the enterprise/private cloud VM Physical VM VM Hypervisor VM Physical VM VM Hypervisor Physical Physical VM Physical VM VM Hypervisor VM Physical VM VM Hypervisor Physical Physical VM Physical VM VM Hypervisor VM Physical VM VM Hypervisor Physical Physical LDOM Billing Web server App server Database Service Group Web VM IP Service Group Web VM Service Group App IP Service Group DB VVR FS Veritas Operations Manager Billing Virtual Business Service Web Server SG Application Server SG Database SG 6 1

15 Build Your Private Cloud with Virtual Business Services Billing Dept Finance Dept HRDept Infrastructure HA/DR Configuration Billing VBS Finance VBS HR VBS AppHA AppHA AppHA AppHA AppHA AppHA AppHA VCS VCS VCS Veritas Operations Manager CFS HA SF HA 7 Cloud Computing (Truth behind the Hype) 8 Layering Business Service HA/DR Big Data, HPC, & Parallel Processing WEB WEB WEB WEB WEB WEB APP APP APP APP APP DB DB Cloud Computing (Truth behind the Hype)

16 Choosing an Architecture Open Complexity Recovery This??? Mainframe 61 6 Today s IT Challenges Complexity Number of components, differing failure rates No Common Clock Creates Data Consistency Challenges Maintenance versus Organic Growth rate IT Market Rate of Change Maintaining technology currency, compatibility, and End of Life challenges Abstraction (Virtualization) Challenges Power Consumption

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