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oVirt Intro & Architecture Barak Azulay Manager @ RHEV Engineering Red Hat June 2012 1 Virtualization Management the oVirt way What is oVirt? Large scale, centralized management for server and desktop virtualization Based on leading performance, scalability and security infrastructure technologies Provide an open source alternative to vCenter/vSphere Focus on KVM for best integration/performance Focus on ease of use/deployment 2 Virtualization Management the oVirt way How Does It Look? 3 Virtualization Management the oVirt way Competitive Landscape ● InfoWorld “shootout” 2011 – Independent analysis of leading virtualization platforms – 2nd place in management functionality http://bit.ly/virtshootout 4 Virtualization Management the oVirt way Goals of the oVirt project ● Build a community around all levels of the virtualization stack – hypervisor, manager, GUI, API, etc. ● To deliver both a cohesive complete stack and discretely reusable components for open virtualization management ● Provide a release of the project on a well defined schedule ● Focus on management of the KVM hypervisor, with exceptional guest support beyond Linux ● Provide a venue for user and developer communication and coordination 5 Virtualization Management the oVirt way Governance ● Merit based, open governance model ● Built using the best concepts taken from Apache and Eclipse Foundations ● Governance split between board and projects ● oVirt Board ● Multiple projects under the oVirt brand 6 Virtualization Management the oVirt way Governance (oVirt Board) ● Initial board ● Red Hat, IBM, NetApp, Cisco, SUSE, Intel ● A few domain leaders from sub-projects ● Mentors ● There is no limit to the number of board seats ● Additional seats are voted based on merit 7 Virtualization Management the oVirt way Kenrel-based Virtual Machine (KVM) ● Included in Linux kernel since 2006 ● Runs Linux, Windows and other operating system guests ● Advanced features ● Live migration ● Memory page sharing ● Thin provisioning ● PCI Pass-through ● KVM architecture provides high “feature-velocity” – leverages the power of Linux 8 Virtualization Management the oVirt way Linux as a Hypervisor? ● What makes up a hypervisor ? ● Hardware management ● Device drivers ● I/O Stack ● Resource Management ● Scheduling ● Access Control ● Power Management ● Memory Manager ● Device Model (emulation) ● Virtual Machine Monitor 9 Virtualization Management the oVirt way Linux as a Hypervisor? ● What makes up a hypervisor ? ● Hardware management ● Device drivers ● I/O Stack ● Resource Management Operating System Kernel ● Scheduling ● Access Control ● Power Management ● } Memory Manager ● Device Model (emulation) ● Virtual Machine Monitor 10 Virtualization Management the oVirt way Linux as a Hypervisor? How well does Linux perform as a hypervisor? Isn't Linux a general purpose operating system? Linux is architected to scale from the smallest embedded systems through to the largest multi-socket servers ● From cell phones through to mainframes KVM benefits from mature, time tested infrastructure ● Powerful, scalable memory manager ● Robust security infrastructure ● High performance network stack ● Versatile storage infrastructure – iSCSI, FC, NAS, multipath, etc ● Rich ecosystem of supported hardware systems 11 Virtualization Management the oVirt way Linux as a Hypervisor? How well does Linux perform as a hypervisor? Isn't Linux a general purpose operating system? Over the last 4 years features have been added to Linux to provide a better infrastructure for a hypervisor ● Scheduler enhancements Improved scalability and reduced latency ● Enhancements to memory manager Advanced features such as memory page sharing and compression ● Improvements to Block I/O subsystem ● Better performance, automated alignment, etc 12 Virtualization Management the oVirt way Red Hat Enterprise Virtualization Performance and Scalability SPECvirt_sc2010 Vendor neutral virtualizaztion benchmarks Comprised of application specific benchmarks running inside “tiles” Each tile runs 6 virtual machines ● Application Server ● Database Server ● Mail Server ● Web Server ● Infrastructure Server ● Idle Server Each VM runs a benchmark, eg SpecWeb, SPECjAppServer,SPECmail and must meet specifi 13 Virtualization Management the oVirt way Red Hat Enterprise Virtualization Performance and Scalability SPECvirt_sc2010 KVM leads the pack in 2, 4, 8 socket systems for SPECvirt Including the largest benchmark results with over 400 Vms Score : 7067 @ 432 VMs (72 tiles) Processor: Intel Xeon E7-4870 (80 cores, 8 chips, 10 cores/chip, 2 threads/core) Memory: 2 TB (128 x 16 GB, Quad Rank x4 PC3-8500 CL7 ECC DDR3 1066MHz LP RDIMM) http://www.spec.org/virt_sc2010/ 14 Virtualization Management the oVirt way Security oVirt inherits the security features of Linux SELinux security policy infrastructure Provides protection and isolation for virtual machines and host Compromised virtual machine cannot access other VMs or host sVirt Project Sub-project of NSA's SELinux community. Provides “hardened” hypervisors Multilevel security. Isolate guests Contain any hypervisor breaches 15 Virtualization Management the oVirt way oVirt Node ● Standalone hypervisor ● Small footprint < 100MB ● Customized 'spin' of Fedora + KVM ● 'Just enough' Fedora to run virtual machines ● Runs on all RHEL hardware with Intel VT/AMD-V CPUs ● Easy to install, configure and upgrade ● PXE boot, USB boot, CD or Hard drive 16 Virtualization Management the oVirt way oVirt Node vs. Full Host oVirt Node • Less than 100 MB • Pre-configured, no Linux skills needed. Full Host • Flexible • Add monitoring agents, scripts etc. Leverage existing Fedora infrastructure. • Hybrid mode capable 17 Virtualization Management the oVirt way How to Start? ● Build from source ● Or, just install pre-packaged ● yum install ovirt-engine ● ./ovirt-setup ● Add managed hosts ● from engine ● use ovirt-node registr/approve flow 18 Virtualization Management the oVirt way Administration Console 19 Virtualization Management the oVirt way Search Auto Complete 20 Virtualization Management the oVirt way Search Auto Complete 21 Virtualization Management the oVirt way Search Results 22 Virtualization Management the oVirt way Add Host As Simple As 23 Virtualization Management the oVirt way Power Management 24 Virtualization Management the oVirt way Configure Networks 25 Virtualization Management the oVirt way Or Bonds 26 Virtualization Management the oVirt way Without Scripts or Config Files 27 Virtualization Management the oVirt way Configure Storage Once for Entire Cluster 28 Virtualization Management the oVirt way Extend with More LUNs as Needed 29 Virtualization Management the oVirt way Add Servers or Desktops 30 Virtualization Management the oVirt way Even Windows via Sysprep 31 Virtualization Management the oVirt way SPICE or VNC 32 Virtualization Management the oVirt way Migratable or Not 33 Virtualization Management the oVirt way Highly Available? 34 Virtualization Management the oVirt way Control Allocated Resources (Disk, Memory) 35 Virtualization Management the oVirt way Boot Devices 36 Virtualization Management the oVirt way Advanced Options via Custom Properties 37 Virtualization Management the oVirt way Assign Permissions to Objects by Roles 38 Virtualization Management the oVirt way Define Your Own Roles 39 Virtualization Management the oVirt way User Portal 40 Virtualization Management the oVirt way Self Provisioning Portal 41 Virtualization Management the oVirt way User Resource View 42 Virtualization Management the oVirt way Management Features Feature Description High Availability Restart guest VMs from failed hosts automatically on other hosts Live Migration Move running VM between hosts with zero downtime System Scheduler Continuously load balance VMs based on resource usage/policies Power Saver Concentrate virtual machines on fewer servers during off-peak hours No downtime for virtual machines during planned maintenance windows. Maintenance Manager Hypervisor patching Image Management Template based provisioning, thin provisioning and snapshots Monitoring & Reporting For all objects in system – VM guests, hosts, networking, storage etc. OVF Import/Export Import and export VMs and templates using OVF files V2V Convert VMs from VMware and RHEL/Xen to oVirt 43 Virtualization Management the oVirt way High Availability • Build a highly available enterprise infrastructure • Continually monitor host systems and virtual machines • Automatically restart virtual machines in case of host failure ● Restart virtual machine on another node in the cluster • Use live migration to “fail-back” a VM to it's original host when the server is restored 44 Virtualization Management the oVirt way Live Migration • Dynamically move virtual machines between hosts ● No service interruption ● Applications continue to run • Migrate even I/O intensive workloads such as databases • Perform hardware maintenance without application downtime • Dynamically balance workloads between host systems 45 Virtualization Management the oVirt way System Scheduler • Dynamically balance workloads in the data center. • Automatically live migrate virtual machines based on resources • Define custom policies for distribution of virtual machines Maintain consistent resource usage across the enterprise data center 46 Virtualization Management the oVirt way Power Saver Define policies to optimize workload on a fewer number of servers during “off- peak” hours 47 Virtualization Management the oVirt way Management Features Feature Description High Availability Restart
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