Enterprise Virtualization with Xen
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This document discusses enterprise virtualization using Xen and Oracle VM. It describes how virtualization allows workloads to become stateless and decoupled from physical hardware. All workload attributes are stored in a configuration repository. Early virtualization projects at EDCS used a stateless, network storage-centric approach. The Project Dakota implementation at Oracle encapsulated computing environments using network, server, and disk virtualization with Xen. Oracle VM provides live migration, Linux/Windows support, and browser-based management of virtual machines. Opportunities exist to develop templates, appliance deployment, vertical stack integration, and centralized management of virtual and application infrastructure.
Enterprise Virtualization with Xen
- 1. <Insert Picture Here> Enterprise Virtualization With Xen Frank Martin – Sr. Architect. EDCS Advanced Architecture Team
- 3. Early Stages – “Statelessness” • Breaking the logical/physical relationship between workload and its placement on hardware • Key to automation and modernization of a true “lights out Data Center and remote facilities management techniques • “Statelessness” The key to the adaptation of virtualization in the enterprise
- 4. Early Stages – Network Storage • In a stateless system, Network Storage is key to the architecture. • No local disk usage – everything is remotely mounted. • Most activity is concentrated on Server Virtualization, but the migration of data to a network storage-centric approach is crucial
- 5. Early Stages – Configuration Repository • “Statelessness” places the attributes of all workload into an outside repository. • Red Hat 5 – uses LDAP for this • EDCS uses an Oracle Database • Interfaces into Linux for all OS specifics ( hostname, network configs, mountpoints, users and software)
- 6. EDCS Standard Provisioning “Grid” • Stateless • PXE Booted • Network Disk Centric • All workload encapsulated into System Repository • BUT…. • Single OS to a single server (Server proliferation) • No Windows support • Big Flat Network
- 8. Project DAKOTA • Encapsulation of the computing environment • Network, Server, Disk all “Disposable” • Support of Windows alongside of Solaris and Linux
- 9. Project Dakota • Network Encapsulation: • SSL-VPN Tunnels and ACLS • Disk Encapsulation • Net Apps “Flex Cloning” • Server Virtualization • Xen
- 10. Project Dakota • Live Production – May 2005 • Linux only, Paravirtual only, on non-VT enabled hardware • 3 to 1 Collapse of server proliferation • As updates to Xen became available – new features were added: • March 2006 – Windows • October 2007 – Solaris Para-virtual • All Oracle software is in some form of Xen enabled virtualization ( not for external support )
- 11. Project Dakota • Current Status – Global IT and Oracle University • 240 Dell 1950s • Roughly 4,000 grid “instances”** (virtual machines) active at any given time • Wide variety of OS’es, Windows, Linux and now Solaris.
- 12. Oracle Grid-Based Computing • Grid-Based Storage • Oracle Automatic Storage Management • Grid-Based Server Clusters • Oracle Database • Oracle Middleware • Grid-Based Management • Oracle Grid Control Data Sales ERP Custom Warehouse Application Application Application Enterprise Manager Mid-Tier Server Clusters Real Application Clusters Automatic Storage Management
- 13. Oracle On Demand – Virtualization Deployment Profile 18 months Original State Consolidation Virtualization 6 systems 4 systems 2 systems 2QC x 32 2 x 8 MT 2 x 8 DB 2DC x 16 MT 2DC x 16 DB MT and DB Prod Instance Prod Instance Prod Instance Prod Instance Prod Instance 2 x 8 MT 2 x 8 DB 2DC x 16 MT 2DC x 16 DB Dev Instance Dev Instance Dev & Test Dev & Test 2QC x 32 Instances Instances MT and DB 2 x 8 MT 2 x 8 DB Dev & Test Test Instance Test Instance Instances Original State Consolidation Virtualization Space 12 rack units 4 rack units 2 rack units Power @ Idle 1518 watts 960 watts 480 watts Power @ 100% Load 2010 watts 1180 watts 660 watts Perf Prod 1 2 ~2 Perf Dev & Test 1 1 ~1
- 14. Oracle VM Oracle Fusion Oracle Non-Oracle Non-Oracle Database Middleware Applications Applications Applications Oracle Oracle Oracle Oracle or Red Hat Microsoft Enterprise Linux Enterprise Linux Enterprise Linux Enterprise Linux Windows Oracle VM • Oracle tested and supported server virtualization technology • Maximizes consolidation of Linux and Windows servers • Saves on power, cooling and space
- 15. Oracle VM Features • Simplified installation • Server install is a single CD • Server installs and configures in a minute • Faster deployment • Pre-configured Virtual Machine images of Oracle Database and Oracle Enterprise Linux • Live migration • Linux and Windows guest support • Oracle Enterprise Linux 4 and 5; • RHEL3, RHEL4 and RHEL5 • Windows 2003, Windows Server 2003 and Windows XP (on HV capable hardware) • Browser-based management • Create, clone, share, configure, boot, and Migrate virtual machines
- 16. Technology Enhancements • Enhanced and optimized Xen technology, addressing • I/O overhead • Memory overhead • Process Scheduling • Community involvement • Dedicated Xen development team • Contribute code and bug fixes to Xen • Members of Xen community at Oracle e.g. Dan Magenheimer • Member of XenSummit committee • Significant testing • Real-world testing with Oracle On Demand workloads • Testing with Oracle Validated configuration workloads
- 17. Opportunity: Enterprise Manager for Virtualized Infrastructure • Top-down management of applications running in virtualized environment • “Application aware” monitoring and administration of virtual resources • Dynamically grow & shrink resources to meet SLA objectives • Integration with oracle.com for live updates on best practices • Support for Lifecycle Management and ITIL driven flows • Integration with 3rd party management tools Data Sales ERP Custom WarehouseApplication Application Application Enterprise Manager Virtual Machines Hosts/Virtual Servers Clusters & Storage
- 18. Opportunities • VM templates and virtual appliances for easier deployment • Vertical stack integrated • One management console for managing Apps down to the virtual environment
- 19. Summary • Oracle uniquely combines Oracle VM • Proven Grid capabilities • Server virtualization Data Sales ERP Custom Warehouse Application Application Application • Full virtualization strategy • Applications Mid-Tier Clusters • Data • Servers Oracle Real Application Clusters Enterprise • Storage Manager • Benefits • Maximized consolidation • Optimized agility Automatic Storage Management • High availability
- 20. Resources • Oracle VM Home Page oracle.com/virtualization • Free Download: Oracle VM edelivery.oracle.com/oraclevm
- 21. Q &A Q U E S T I O N S A N S W E R S