Introduction to Hyper-V role: virtualization

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In this article we will introduce a new virtualization product called Hyper-V Microsoft giant.

In previous articles we talked about virtualization, we have examples and we have introduced a product: VMware.

You can refresh concepts in the articles:

http://tuquiosco.es/category/virtualizacion/

In this article we want to show virtualization tool that Microsoft released in 2008 and now has improved substantially, incorporating as a function within Microsoft Server 2008.

What is Hyper-V?

Windows Server 2008 Hyper-V is the functionality of the hypervisor-based virtualization, included as a specific server role in Windows Server 2008. It contains everything needed for commissioning of virtualization scenarios. Hyper-V to reduce costs, improve the level of server utilization and create a more dynamic IT infrastructure. The increased flexibility provided by Hyper-V is due to dynamic platform capabilities, reliable and scalable combined with a unique set of management tools that manage both physical and virtual resources, which facilitates the creation of a datacenter flexible and dynamic and moving towards a self-managing dynamic systems model.

Microsoft released Hyper-V to try to get into the market for virtualization products, a very buoyant market in recent years, in which companies such as VMware and Citrix are dominant.

Key features of Windows Server 2008 Hyper-V

Hyper-V, the latest generation of technology-based server virtualization hypervisor for Windows Server 2008 allows you to solve many of the current challenges that arise in companies around virtualization of IT environments. You can now create virtual machines that take full advantage of available hardware, run multiple operating systems and manage both virtual and the physical resources using the same industry-standard tools.

Among the main features of Hyper-V include:

• A new architecture new, much improved: The new hypervisor architecture microprocessor-based 64-bit kernel enables Hyper-V support a wide range of devices and get better performance and enhanced security.
• Support for many different operating systems: Includes support for concurrent execution of different types of operating systems, both 32 and 64 bit server on different platforms like Windows and Linux.
• Support for SMP: architecture is capable of supporting up to 4 processors SMP in virtual machine environments, which can maximize the benefits of multi-threaded applications in VM.
• Memory Support: Supports the routing of large amount of memory for each virtual machine, enabling virtualized execution of virtually any task, with Hyper-V becomes the ideal platform for both large companies and small and medium enterprises.
• Improved access to the storage system: With disk access on a "pass-through" and broad support for SAN and internal disk access, Hyper-V offers a great flexibility to configure and optimize the use of environments and storage resources.
• New hardware sharing architecture: The new architecture of virtual service provider / virtual service client (VSP / VSC) Hyper-V enables better performance and a higher level of use of basic resources such as hard drives, network, video, etc..
• Quick Migration Hyper-V quick migration makes to a virtual machine from any physical host to another with minimal downtime, leveraging the capabilities of well-known high availability Windows Server and System Center management tools.
• Linux Integration Components: The Linux Integration Components (Beta) Now Available for x86 and x64 editions of SUSE Linux Enterprise Server 10 SP1. These integration components enable benefit from Xen Linux supports all the advantages of the architecture VSP / VSC and get better performance. The Beta Linux integration components and can be downloaded from the website connect.microsoft.com .
• Virtual Machine Snapshot: Hyper-V is capable of taking snapshots of a running virtual machine, thanks to which you can revert to a previous state and improve the chances of backup solutions and disaster recovery.
• Scalability: With support for multiple processors and cores at the host level and improved memory access within virtual machines, virtualization environments can scale up to support more virtual machines on the same physical machine, and facilities continue to use quick migration for scalability in multi hosts.
• Extensible: The APIs and interfaces WMI (Windows Management Instrumentation), based on industry standards Hyper-V make it possible for manufacturers and independent software developers can create their own tools, utilities and enhancements for the virtualization platform.

VMware vSphere 4.1: the new virtualisation tool

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The following opinion article we will explain the new tool Vmware virtualization company, known as vSphere 4.1.

In previous articles of this blog have talked about virtualization, operation, and we also talked about a particular product VMware. You can refresh memory in the following items:

Clear concepts: Virtualization of servers and / or services

Virtualization products: VMware

A practical example of Virtualization with VMWare

The company VMware has announced that for the month of August will release the new version of the well known vSphere, version 4.1. This new version has some significant improvements, mainly in the following diagram we can see how it distributed the following versions:

If we analyze this new scheme we noted that the services of High Availibility (HA) and VMotion are located now in the standard version, while Tolerence Fault (FT) is now part of the Advanced version. Without any doubt this change in versions of great benefit to users with a license can take advantage of lower cost two services very good. We recall that serves vMotion for moving virtual machines between different physical nodes hot and HA is a feature that continuously monitors all physical servers and in case of failure, affected virtual machines restarted on another physical server.

According to the company VMware, vSphere 4.1 features improvements in the management of virtual machine resources and performance of the network also announced the entry into force of a new licensing system virtual machine, so far was for hardware.

vSphere 4.1 includes several significant changes to come closer to SMEs. It incorporates a new memory compression technology that enables a throughput of up to 25% higher than the previous version (data demonstrate outstanding). It also incorporates an improved management of resources, this version allows over the previous, double computing resources in each network. We also noticed that it has substantially improved the speed of migration of virtual machines from one physical node to another, up to 5 times faster than the previous version. Now each physical server can be able to manage up to 10,000 virtual machines, three times more than in the previous version. For SMEs VMware released a product called VmwareGo that facilitates the introduction to the world of virtualization, to make it easier to adapt to this new technology.

VMware is also introducing two new products:

• VMware vCenter Configuration Manager, which allows operating enforce policies and prevent configuration errors by automating manual processes on all servers and workstations, both virtual and physical.

• VMware vCenter Application Discovery Manager, which maps accurate and fast way dependencies between applications to speed up movement within the data center, also plans to consolidate infrastructure and virtualize business-critical applications.

Prices vary according to the needs of customers and hardware versions. Prices range from 65 € to more than 3,000 € of some licenses, but the two previous products is priced at $ 50,000 per virtual machine.

More info: VMware Web

Virtualization products: VMware

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In a previous article we explained in a "simple" what was the virtualization and what it did. In this article we will try to dig a little deeper into the issue and present a product: VMWare and an example: an area of ​​virtualization systems with 3 servers.

What is VMWare?

VMWare is a virtualization system software company VMware Inc. subsidiary of EMC Corporation. A virtual system is a software program that simulates a physical system (a computer, hardware) with a certain hardware features. When you run the program (simulator), provides a runtime environment similar to all effects a physical computer (except pure physical access to hardware simulation), CPU (can be more than one), BIOS, graphics card, RAM, network card, sound system, USB, hard drive (can be more than one), etc..

A virtualized software lets you run (simulate) multiple computers (operating systems) within the same hardware simultaneously, thus allowing better use of resources. Nevertheless, being an intermediate layer between the physical system and operating system running on the emulated hardware, the execution speed of the latter is smaller, but in most cases sufficient for use in production environments.

VMware Approach to Virtualization  

VMware directly inserted a layer of software (VMWare ESX Server) in the computer hardware or the host operating system. This software layer creates virtual machines and contains a virtual machine monitor or "hypervisor" that allocates hardware resources dynamically and transparently to run multiple operating systems simultaneously on a single physical computer without even realizing it.

However, virtualizing single physical computer is just the beginning. VMware offers a robust virtualization platform that can extend for hundreds of storage devices and interconnected physical computers to form a virtual infrastructure complete.

What issues / licensing exists for VMWare Server?  

VMWare provides a variety of licensing its server versions.

- VMWare ESXi: free version operating limitations

- VMWare ESX: paid version with limited licensing operation according to chosen

For those readers who want to try the tool just download the free server virtualization VMWare ESXi. Click here .

The different types of licenses that VMWare are as follows and we have classified by type of company:

- For medium and large companies:

• VMware vSphere Enterprise Plus, which includes the full range of vSphere features for transforming datacenters into cloud computing environments incredibly simplified pave the way for the new generation of flexible IT services and reliable.
• VMware vSphere Enterprise provides key capabilities to minimize downtime, protect data and automate the management of resources.
• VMware vSphere Advanced is a strategic consolidation solution that protects all applications against planned downtime and unplanned, resulting in high availability applications.
• VMware vSphere Standard is an entry-level solution for basic consolidation of applications that can reduce hardware costs significantly and accelerate the deployment of applications.

- For small businesses:

• VMware vSphere Essentials is a solution "all inclusive" which allows small offices to virtualize three physical servers to consolidate and manage applications, reducing hardware and operating costs and a low initial investment.
• VMware vSphere Essentials Plus is a solution "all inclusive" which allows small offices to virtualize three physical servers, reducing hardware costs and ensuring high application availability and data protection.

You can view all products with VMWare on this link. Click here

Definition of the main features of VMWare

In the following table we summarize the main features of VMWare licensing and what we need:

- VMware ESX: allows multiple virtual machines share physical resources

- VMware vCenter Server, VMware vCenter Server allows centralized management, automate operations, optimize resources and high availability to IT environments.

- VMware Update Manager: This product manages the distribution of patches and VMware ESX virtual machines unattended. This ensures infrastructure from vulnerabilities.

- VMware High Availability (HA), VMware HA is a feature that continuously monitors all physical servers and in case of failure, affected virtual machines restarted on another physical server.

- VMware Distributed Resource Scheduler (DRS) + (DPM): VMware DRS monitors resource utilization and dynamically shared among virtual machines.

- VMware VMotion, VMware VMotion allows hot move virtual machines from one physical server to another. This allows maintenance of HW without cutting the service or an instant.

- VMware Storage Vmotion: if the machines did not share physical storage, Storage VMotion lets you move virtual machines hot local storage of a physical server to another.

- Fault Tolerance (Fault Tolerance), an innovative application service, provides availability without downtime or data loss to all applications against hardware failures without the cost and complexity of clustered solutions hardware or software.

- VMsafe-provides X-ray vision into virtual machines to detect and stop viruses, rootkits and malware previously undetectable before they can infect the system.

- Adding hot (Hot Add) of virtual CPUs, memory and network devices in virtual machines allows applications to fit perfectly without disruption or downtime.

- VMware Data Recovery provides a backup and recovery features simple, cost, agent of virtual machines for smaller environments.  

- VMware Consolidated Backup: allows hot backups of the systems directly from the files that make up the virtual machine. This product integrates with most backup products like Symantec Backup Exec.  

I hope you liked this article about the product such as VMware virtualization solution. You can get more information on www.vmware.com/es/

The next article will explain a practical example of how to virtualize a system area with an existing structure.

Clear concepts: Virtualization of servers and / or services

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What is virtualization?

Virtualization is a software technology that is rapidly changing environment of information technologies and radically transforming the way people use information systems.

The powerful current x86 hardware was originally designed to run a single operating system and a single application, but virtualization has done away with these limitations by enabling simultaneous execution of multiple operating systems and multiple applications on the same computer, thus increasing the use and flexibility of hardware.

You can see a more specific definition but more difficult to understand in wikipedia, click here .

How does virtualization?

Basically, virtualization lets you transform hardware into software. Use software to transform or "virtualize" the hardware resources of an x86 computer, including CPU, RAM, hard disk and network controller, to create a fully functional virtual machine that can run its own operating system and applications just as a computer does "real".

Several virtual machines share hardware resources without interfering with each other so that you can run simultaneously on multiple operating systems safely and applications on a single computer.

What can be virtualized?

In the next picture we see what we can virtualize red, and black, are the necessary software to virtualize.

What are the advantages we get with virtualization?

• Rapid incorporation of new resources for virtualized servers.
• Reduced space and power costs in proportion to necessary consolidation ratio achieved (mean estimate 10:1).
• Global centralized and simplified management.
• It allows us to manage our CPD (data processing center) as a resource pool or group of all the processing power, memory, network and storage available on our infrastructure
• Improved cloning processes and systems backup: Easier to create test environments that allow implementing new applications without impacting production, speeding up the testing process.
• Insulation system to crash a virtual machine does not affect other virtual machines.
• Improving TCO and ROI
• Not only brings direct benefit in reducing the required hardware and their associated costs
• Reduce downtime.
• Live migration of virtual machines (without loss of service) from one physical server to another, eliminating the need for planned outages for maintenance of the physical servers.
• Dynamic balancing of virtual machines between physical servers that make up the pool of resources, ensuring that each virtual machine running on the most appropriate physical server and providing a uniform resource consumption and optimal in the entire infrastructure.
• High overall satisfaction

Types of virtualization software

- VMWare

- Microsoft HyperV

- Xen (Citrix)

- Virtual Box (Sun)

- OpenVZ

The software on the market is consolidated at the same time VMWare is offering the best guarantees of success of a project, while providing for the future evolution and growth.

Functional diagram of virtualization