Virtualization software helps a single host computer to create and manage more than one virtual environments, at the same time. It is often used for emulating a complete computer system to successfully run a guest operating system. For instance, if you have to run Linux as a guest operating system on a computer that has the Microsoft Windows operating system. Virtualization software can prove helpful. With storage virtualization, it can abstract logical storage from physical storage.
It can further help in increasing IT agility, scalability and flexibility while cutting down on costs considerably. With faster deployment of workloads, performance and availability increases. It also enables disaster recovery with simplified data center management.
Application virtualization software is a technology, which encapsulates computer programs from the operating system from where it has been executed. It requires a virtualization layer that can repl Read More
Virtualization is a way to make more efficient use of today’s high-performance CPUs, by letting to run multiple servers on the same hardware. One or more virtual – guest servers share computing resources under the control of a hypervisor.
More servers on a machine reduces the need for physical servers, which reduces hardware, space and power costs. Virtual servers can also be moved across physical systems to further align available resources with demand.
The advantages of switching to a virtual environment are plentiful, saving the money and time while providing much greater business continuity and ability to recover from disaster.
There are 7 primary types of virtualization, and each one differs according to the element it is used on. Each type can also have a different effect on Network Security also.
1.OS Virtualization- Virtual Machines
Virtualizing an operating system environment is the most common form of virtualization. It involves putting a second instance or multiple instances of an operating system, like Windows, on a single machine. This empowers businesses to reduce the amount of physical hardware required to run their software by cutting down the number of actual machines. It saves companies cash on energy, cabling, hardware, rack space, and more, while still allowing them to run the same quantity of applications.
Application-server virtualization is another large presence in the virtualization space, and has been around since the inception of the concept. It is often referred to as ‘advanced load balancing,’ as it spreads applications across servers, and servers across applications. This enables IT departments to balance the workload of specific software in an agile way that doesn’t overload a specific server or underload a specific application in the event of a large project or change. Additionally, it gives way to greater network security, as only one server is visible to the public while the rest are hidden behind a reverse proxy network security appliance.
Application virtualization is often confused with application-server virtualization. Application Virtualization means applications operate on computers as if they reside naturally on the hard drive, but instead are running on a server. The ability to use RAM and CPU to run the programs while storing them centrally on a server, like through Microsoft Terminal Services and cloud-based software, improves how software security updates are pushed, and how software is rolled out.
Administrative virtualization is one of the least-known forms of virtualization, likely due to the fact that it’s primarily used in data centers. The concept of administration, or ‘management,’ virtualization means segmented admin roles through group and user policies. For example, certain groups may have access to read specific servers, infrastructure, application files, and rules, but not to change them.
Network Virtualization involves virtually managing IPs, and is accomplished through tools like routing tables, NICs, switches, and VLAN tags.
Hardware virtualization is one of the rarer forms of virtualization, and when simply explained it is similar to OS virtualization (it is, in fact, often required for OS virtualization). Except, instead of putting multiple software instances on a single machine, chunks of a machine are partitioned off to perform specific tasks.
Storage virtualization is an array of servers that are managed by a virtual storage system. The servers aren’t aware of exactly where their data is, and instead function more like worker bees in a hive.
Although enterprises gain incremental benefits from applying virtualization in one area, they gain much more by using it across every tier of the IT infrastructure. For example, when server virtualization is deployed with network and storage virtualization, servers gain the ability to boot in a different data center for disaster-recovery purposes.
Virtualization can increase IT agility, flexibility, and scalability while creating significant cost savings. Workloads get deployed faster, performance and availability increases and operations become automated, resulting in IT that's simpler to manage and less costly to own and operate. Additional benefits include:-