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Server virtualization tools reduce the need for physical hardware systems. The resulting increase in resource utilization lowers server costs. Containerization however, popular since the emergence of Docker, supplies an alternative to server virtualization. Containerization achieves greater efficiency than server virtualization by eliminating the hypervisor and its multiple virtual machines. Each application shares a single instance of the operating system and runs on the “bare metal” of the server.
Server virtualization products provide these common features:
Run multiple virtual machines using different OS on same server
Automated virtual machine provisioning
Manage remote physical locations, branch locations with rapid provisioning
Server health monitoring, performance bottleneck, workload rebalancing
Centrally control and optimize virtual machine environment
Patch or backup virtual machines without interrupting service
Migrate live virtual machines between hosts during scheduled maintenance
Hypervisor-level security, including antivirus and anti-malware
Secure apps and infrastructure with guest operating system lockdown
Auditable activity, performance log
Server virtualization inherently reduces data center costs by improving resource utilization. Virtualization subscriptions are available at a monthly or (more common) annual cost, with reduction in cost for up-front multi-year commitments. Subscriptions are priced according to managed hypervisor socket pairs, or per number of physical processors featuring virtualization. Free trials ranging from 30 to 60 days are available from some vendors. Server virtualization is also sometimes offered with on-demand pricing (e.g. compute capacity per hour).
Amazon Elastic Compute Cloud (or EC2) from Amazon Web Services offers scalable cloud capacity for setting up a virtual server.
VMware ESXi is a popular hypervisor, from VMware.
Oracle VM VIrtualBox is Oracle's cross-platform virtualization offering, acquired with Sun Microsystems in early 2010. The software was originally developed by Innotek GmbH.
VMware Workstation is virtualization software which allows running multiple x86-based operating systems on one PC.
Red Hat Virtualization (formerly Red Hat Enterprise Virtualization, broadly known as RHEV) is an enterprise level server and desktop virtualization solution. Red Hat Virtualization also contains the functionality of Red Hat Enterprise Virtualization for Desktop in later editions of the platform.
Citrix Hypervisor (formerly XenServer) is a virtualization management platform optimized for application, desktop and server virtualization infrastructures.
Nerdio provides streaming IT services over the Internet by virtualizing hardware and software. Companies using Nerdio no longer have to maintain servers, desktops and software, but instead plug into virtual services in the cloud.
Nutanix Acropolis is a platform supporting server virtualization.
Kernel-based Virtual Machine (KVM) is a virtualization solution developed by small Israeli software company Qumranet and supported by Red Hat since that company's acquisition in 2008.
Oracle VM Server is Oracle's server virtualization offering for enterprises.
IBM PowerVM provides a server virtualization environment.
Proxmox VE is an open source server virtualization program.
VSOM from VMware delivers vSphere server virtualization but also adds capacity management and performance monitoring features.
Virtuozzo, formerly Parallels Cloud Server is a container based server virtualization technology.
OpenVZ is container-based virtualization for Linux supported by Odin and fundamental to that company's commercial offering, Virtuozzo.
The Evolve IP Virtual Data Center is a Virtual Private Cloud Computing Service that is designed to enable customers to leverage guaranteed resource reservation pools (processor, memory and disk resources) at Evolve IP’s data centers. The vendor says that by using the Virtual Private Cloud (VPC) c...
HostSailor’s Netherlands VPS Servers is virtual service provider solution (VSP). This solution includes free DDoS protection for all VPS plans in Romania as well as free technical support.
VMware Cloud Foundation on IBM Cloud brings together VMware vSphere, vSAN, and NSX into a natively-integrated stack of virtual compute, virtual storage, and virtual networking built upon IBM Bluemix bare metal servers.
VMware vCenter Server on IBM Cloud automates deployment of the underlying vSphere and vCenter layers needed to build a flexible and customizable VMware solution.
VMware vSphere on IBM Cloud is a customizable virtualization service that combines VMware-compatible bare metal servers, hardware components, and licenses.
IBM Cloud for VMware Solutions makes cloud adoption fast and easy, allowing you to optimize the value of existing on-premises infrastructure, while confidently leveraging the same tools, technologies and skills in the cloud. Gain rapid scalability, deployment in 60+ global data centers and access...