Virtualization Simplified - Guide to Server Virtualization

Virtualization Simplified - Guide to Server Virtualization Joe Penney – Technology Coordinator, Madison Plains Local School District Matt Honigford – Technical Account Manager, VMware Madison Plains Local School District Home of the Golden Eagles © 2009 VMware Inc. All rights reserved

What’s the purpose of this session? To help you prepare… Madison Plains Local School District Home of the Golden Eagles

Fiscal Impact of Virtualization Traditional Model 10 Physical Servers Power Consumption Replacement of 2 Servers** @ $5,000.00* = $10,000.00 Dell PE2950 Total: $10,000.00 Yearly Virtualized Model 2 Physical Servers (10 Virtual Servers) 1 Server per 2-3 years** @ $5,000.00 = ($1,667.00 per year(3)) ESX Software: $934.00 per ESX/yearly = $934.00 x 2 = $1,868.00 Total: $3,535.00 Yearly Assumptions: *Physical Server Cost - $5000.00 **BP's - 20% Renewal per Year Madison Plains Local School District Home of the Golden Eagles

Key Features of Virtualization Partitioning Isolation Run multiple virtual machines Each virtual machine is isolated simultaneously on a single physical from other virtual machines on the server same server Encapsulation Hardware Independence Virtual machines encapsulate entire systems (hardware Run a virtual machine on any configuration, operating server without modification system, apps) in files Madison Plains Local School District Home of the Golden Eagles

>95% of Apps Match Native Performance on Virtual Machines ESX 2 ESX 3 ESX 3.5 ESX 4 30% - 60% 20% - 30% <10% - 20% <2% - 10% Overhead 1 vCPU 2 vCPU 4 vCPU 8 vCPU % of Applications < 4 GB 16 GB 64 GB 255 GB 380 Mb/s 800 Mb/s 9 Gb/s 30 Gb/s < 10,000 20,000 100,000 > 350,000 Application Performance Requirements 1. Source: VMware Capacity Planner assessments Madison Plains Local School District Home of the Golden Eagles

VMware vSphere enables you to use all those cores… VMWare ESX Scaling: 1000 Keeping up with core Oracle counts SQL Server Virtualization provides a means to exploit 100 Number of Cores used Exchange the hardware’s increasing parallelism Avg. Cust, Applic ation 10 Avg. Four Socket Web Servers 1 Most applications 1990 1995 2000 2005 2010 2015 don’t scale beyond Year 4/8 way Madison Plains Local School District Home of the Golden Eagles

ESX 4.0 Performance with SQL Server 2008 Relative Scaling Ratio ESX achieves 90% of native performance on VM 147.24 4.0 vCPU VM Native 133.12 Workload transaction latency unchanged 94.04 between ESX 4.0 79.88 and Native 51.08 45.22 1 vCPU 2 vCPU 4 vCPU Madison Plains Local School District Home of the Golden Eagles

How do I begin? By Developing a Plan… Madison Plains Local School District Home of the Golden Eagles

VMware vSphere (ESX4) – Deployment Options Madison Plains Local School District Home of the Golden Eagles

Perform Assessment Using Capacity Planner VMware Capacity Planner is… • An optimized business and decision support tool • Used to perform faster, more accurate and benchmarked consolidation assessments from the datacenter to the desktop Capacity Planner provides: • Complete state of the infrastructure (As-Is) • Comprehensive future state consolidation recommendation and roadmap (To-Be) Madison Plains Local School District Home of the Golden Eagles

Capcity Analysis Detailed Analysis Time Based: Server Hourly Utilization 100 Desktop Hourly Utilization compatible 100 systems, hourly 90 90 80 80 70 % Utilization patterns, business/ 70 60 % Utilization 60 50 50 40 40 30 20 30 20 peak hours 10 10 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 0 1 2 3 4 5 6 7 8 9 10 11 Hour of Day 12 13 14 15 16 17 18 19 20 21 22 23 All Resources: Hour of Day 18 19 20 CPU, Memory, Disk, N 21 22 23 CPU Disk I/O Network I/O Memory CPU Disk I/O Network I/O Memory 100 Good Consolidation etwork 90 80 70 Conversion Factors: % Utilization 60 50 40 CPU 30 20 10 speedup, virtualization overhead, virtualization 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hour of Day Server B CPU Server A CPU Benefits Comparisons: hardware, groups, thre  Output: Consolidation blueprint with VM configuration and recommendations sholds Madison Plains Local School District Home of the Golden Eagles

Or use vCenter’s Guided Consolidation • Automatically discovers physical servers Discover • Analyzes utilization and usage patterns • Converts physical servers to VMs placed intelligently based on user response Analyze • Lowers training requirements for new virtualization users • Steers users through the entire consolidation process Convert Madison Plains Local School District Home of the Golden Eagles

What are my first steps? Put the Plan into action… Madison Plains Local School District Home of the Golden Eagles

vSphere ESXi as a Solid Foundation VMware ESXi Architecture • True thin hypervisor: 70MB • No general-purpose OS • Easy to install / configure • Very small security attack surface ESXi 4.0 • Direct driver model = I/O scaling • Drivers optimized for VMs • Special treatment for drivers Madison Plains Local School District Home of the Golden Eagles

VMware vCenter for “Single Pane of Glass” Management Datacenter • Centrally manage Virtual Machines Cluster • Instantly provision new servers with standardized templates Stand-alone • Dynamically move workloads across Host Resource Pool servers without service interruption Monitor system availability and performance Automate notifications and alerting Integrate Disaster Recovery Backup Solution Madison Plains Local School District Home of the Golden Eagles

Physical to Virtual Machine Converter Use VMware Converter To: • Perform Physical to Virtual P2V conversion of your existing servers • Resize hard disk size (both up and down) during P2V • Convert both Windows and Linux machines • Provide DR solution by scheduling P2V of remaining physical server on regular basis Madison Plains Local School District Home of the Golden Eagles

What are the most utilized features? Enterprise Options/Simple Configuration…

Live Migration Of Virtual Machines with VMotion What is it? • Live migration of virtual machines from one physical server to another Environment Impact • Zero downtime to virtual machines • Continuous service availability • Complete transaction integrity • Supported on Fibre Channel and iSCSI SAN and NAS (NFS) Shared Storage

High availability with VMware HA What is it? • Automatic restart of virtual machines in case of server failure What is its impact? XResource Pool • Cost effective high availability for all applications • No need for dedicated stand-by hardware • None of the cost and complexity of clustering Madison Plains Local School District Home of the Golden Eagles

Resource Optimization with DRS What is it? • Dynamic balancing of computing resources across server pools User Demand • Intelligent resource allocation based on pre-defined rules Impact • Prioritize server resource availability • Add hardware dynamically to avoid over-provisioning to peak load • Automate hardware maintenance Server Pool Madison Plains Local School District Home of the Golden Eagles

Zero Downtime Maintenance with DRS • What is it? • Maintenance Mode moves machines to alternate hosts in the pool. • What is its impact? • No application outage • No user impact • No server configuration changes Resource Eliminate planned downtime! Pool Maintenance Perform Enter Complete Maintenance Mode Madison Plains Local School District Home of the Golden Eagles

VMware VMFS File System and Storage VMotion Abstract Mobilize • Distributed Cluster File • Storage VMotion moves virtual System (VMFS) allows any machine disks from one storage type of storage to be location to another without attached and used with disruption or downtime VMware Madison Plains Local School District Home of the Golden Eagles

vStorage Thin Provisioning • Virtual machine disks consume only the amount of physical App App App space in use OS OS OS  Virtual machine sees full logical disk size at all times ESX  Full reporting and alerting on allocation and consumption 10GB 10GB 20GB 10GB 40GB Virtual Disks Significantly improve storage 20GB 40GB 100GB utilization Eliminate need to over-provision Physical virtual disks Storage 70GB 30GB Reduce storage costs by up to 50% Madison Plains Local School District Home of the Golden Eagles

VMware Fault Tolerance Single identical VMs running in lockstep on separate hosts Zero downtime, zero data loss failover for all virtual machines in case of hardware failures App App App Integrated with VMware HA/DRS FT OS OS OS VMware ESX VMware ESX Zero downtime, zero data loss No complex clustering or specialized hardware required Single common mechanism for all applications and OS-es X Madison Plains Local School District Home of the Golden Eagles

vNetwork Distributed Switch Aggregated datacenter level virtual networking APP APP APP APP APP APP APP APP APP OS OS OS OS OS OS OS OS OS Simplified setup and change vSwitch vSwitch vSwitch Cisco Nexus 1000V vNetwork Distributed Switch Easy VMware vSphere™ troubleshooting, monitoring and debugging Enables transparent third party management of virtual environments Madison Plains Local School District Home of the Golden Eagles

Some Additional Best Practices Planning for success… Madison Plains Local School District Home of the Golden Eagles

Leverage VMware Update Manager • Automates patch management for ESX Server hosts and select Microsoft and RHEL virtual machines  Scans and remedies online as well as offline virtual machines and online ESX Server hosts OFFLINE  Snapshots virtual machines prior to patching and allows rollback to snapshot Eliminates manual tracking of patch levels of ESX Server hosts and virtual Update machines Manager Automates enforcement of patch standards Reduces risk through snapshots and offline virtual machine patching Madison Plains Local School District Home of the Golden Eagles

Improve Backups with Data Recovery and vStorage API’s Agentless file level backup Move backup out of the virtual machine • A single agent running on the proxy server rather than an agent on every virtual machine. Eliminate backup traffic on the local area network • Utilize Fibre Channel tape devices for virtual machine backups Pre-integrated with major 3rd-party backup products Madison Plains Local School District Home of the Golden Eagles

Storage is key! Storage misconfiguration is responsible for ~80% of performance problems File Guest System Guest Arrays expected to respond in about 10- 20 ms Excepted additional storage latency due Monitor Monitor to ESX about 100 us Virtual SCSI ESX has demonstrated 350K IOPS or 250 Oracle DBs on one server File System I/O Drivers Use vSphere to optimize your storage Physical Hardware Madison Plains Local School District Home of the Golden Eagles

Application scale out may be better than sale up… 8,000 Mailboxes 16,000 Mailboxes Server with 16 cores Server with 16 cores Running one instance of running 6 instances Exchange of Exchange Madison Plains Local School District Home of the Golden Eagles

Take it from Experience… Some lessons learned: • Don’t P2V domain controllers!!! • Don’t forget your Snapshots!!! • Size storage correctly (IOPS/Capacity) • Don’t change vSwitch names while running! • Use nice switch (possibly one that supports VLAN’s) • Segment traffic for VM’s/iSCSI/etc. • Use redundant components whenever possible Madison Plains Local School District Home of the Golden Eagles

OARnet and VMware Partnership Agreement allows OARnet to distribute and license VMware solutions to Ohio colleges and universities • Reduce the current and future operating cost for K-12 education through aggregate purchase of VMware products • Expand program benefits through the inclusion of all education (K-20) Potential Savings: $130 million over 3 years • Reduction in hardware (servers, desktops) budgets • Reduction in operational and maintenance costs • “Green IT” due to lower use of energy and space For information, go to http://www.oar.net and click on “Purchase VMware” Madison Plains Local School District Home of the Golden Eagles

Q&A Thank You! Madison Plains Local School District Home of the Golden Eagles

Virtualization Simplified - Guide to Server Virtualization

by jpenney on May 20, 2010

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Virtualization Simplified - Guide to Server Virtualization — Presentation Transcript