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Best Practice Linux Guide: Virtualization
This document discusses Linux server virtualization and the options available. Virtualization can consolidate server numbers, reduce power consumption, save money on hardware, act as a step towards cloud readiness, and offer flexible disaster recovery. Historically, the main choices were VMware for advanced features or Oracle VM to run Oracle. However, there are now more options that blend hypervisors for different enterprise aspects, and open source alternatives offer real competition. Red Hat Enterprise Virtualization is a full virtualization option based on open source software that includes management tools. The document recommends considering a multiple hypervisor strategy and staff training to take advantage of virtualization.
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Best Practice Linux Guide: Virtualization
- 1. Best practice Linux guide:Virtualization A quick-start guide to virtualization issues www.linuxit.com
- 2. Open Source alternativesare offering real competition for Linux server virtualization. www.linuxit.com
- 3. WHY OPT FORVIRTUALIZATION? Virtualization can... www.linuxit.com
- 4. WHY OPT FORVIRTUALIZATION? Virtualization can... Consolidate the number of servers used www.linuxit.com
- 5. WHY OPT FORVIRTUALIZATION? Virtualization can... Consolidate the number of servers used Reduce power consumption www.linuxit.com
- 6. WHY OPT FORVIRTUALIZATION? Virtualization can... Consolidate the number of servers used Reduce power consumption Save money on hardware www.linuxit.com
- 7. WHY OPT FORVIRTUALIZATION? Virtualization can... Consolidate the number of servers used Reduce power consumption Save money on hardware Act as a first step towards Cloud readiness www.linuxit.com
- 8. WHY OPT FORVIRTUALIZATION? Virtualization can... Consolidate the number of servers used Reduce power consumption Save money on hardware Act as a first step towards Cloud readiness Offer flexible disaster recovery www.linuxit.com
- 9. WHICH TO CHOOSE? Thechoice used to be simple, all you had to do was choose a hypervisor: www.linuxit.com
- 10. WHICH TO CHOOSE? Thechoice used to be simple, all you had to do was choose a hypervisor: VMware if you needed all the most advanced features www.linuxit.com
- 11. WHICH TO CHOOSE? Thechoice used to be simple, all you had to do was choose a hypervisor: VMware if you needed all the most advanced features Oracle VM to run Oracle www.linuxit.com
- 12. Today it’s morecomplex: there are options to blend and multi-source hypervisors for different aspects of the enterprise. And now, Open Source alternatives offer real competition in the Linux server virtualization market. Here’s a brief run-down of the alternatives: www.linuxit.com
- 13. UNDERLYING TECHNOLOGIES -ESX ESXServer Full x86 virtual machine supports any x86 OS guest Now also supports paravirtualization VMware (Proprietary) www.linuxit.com
- 14. UNDERLYING TECHNOLOGIES -XEN KVM Paravirtualization that modifies the guest OS but with hardware-assisted CPU virtualization Xen 3.x also supports fully virtualized guest OSs Citrix and Oracle, for example Xen is Open Source but products based on it are often not www.linuxit.com
- 15. UNDERLYING TECHNOLOGIES -KVM KVM KVM is part of the mainline Linux kernel Supports Linux and Windows It runs on x86 and x86-64 systems with hardware supporting virtualization extensions. Red Hat Enterprise Virtualization Based on Open Source software Red Hat Enterprise Virtualization includes management tools similar to VMware and enables system admins to maintain control of the server environment. www.linuxit.com
- 16. Choices There are about30 different providers offering IaaS (Infrastructure as a Service) integration products and destinations www.linuxit.com
- 17. Choices Cloud integration iseasiest when the Clouds are based on interoperable environments - for example Red Hat Enterprise Linux and Amazon Web Services www.linuxit.com
- 18. Choices Red Hat CloudFormscan manage hybrid Clouds using existing resources such as hypervisors from many different vendors. www.linuxit.com
- 19. Linux virtualization to-dolist Consider a multiple vendor hypervisor strategy Consider enlisting the services of a Linux support specialist to help make an assessment around which applications to virtualize and implement Linux server virtualization Guard against ‘virtual sprawl’ - when planning your infrastructure and deployment, think of virtual machines as if they were physical machines www.linuxit.com
- 20. Linux virtualization to-dolist Consider your workload and the underlying hardware. Be aware of the limits of your solution and the migration tools you will need depending on whether it is possible to carry out a simple physical to virtual migration Consider whether there are constraints born of how the application has been written to perform in a physical or virtual server environment www.linuxit.com
- 21. Linux virtualization to-dolist Look at your entire Cloud strategy and consider moving workloads to and from different public Cloud destinations. Ensure staff get the relevant training so that they can take full advantage of your Linux virtualization. www.linuxit.com
- 22. Linux virtualization to-dolist Look at your entire Cloud strategy and consider moving workloads to and from different public Cloud destinations. Ensure staff get the relevant training so that they can take full advantage of your Linux virtualization. www.linuxit.com Hitesh Patel is Senior Business Partner Manager UKI, Virtualization and Cloud at Red Hat
- 23. www.linuxit.com For more information onusing Linux in your organisation, download our Open Architectures Readiness Assessment paper today! OPEN ARCHITECTURES IS YOUR ORGANISATION READY? www.linuxit.com OPEN ARCHITECTURES IS YOUR ORGANISATION READY? www.linuxit.com Download Now