Accessing Virtual Server using Visual C#:
To use the Virtual Server object in Visual C#, select Project/Add Reference from the menu, select the COM tab in the dialog box, then scroll down the list and select Virtual Server 2005 Type Library. Once the type library is added as a reference, the VirtualServer object can be referenced in the program.
The limitations of Microsoft Virtual server includes:
The virtual server provided by Microsoft and physical server has few things common in between them and these are as follows:
Microsoft Virtual Server 2005:
Microsoft Virtual Server 2005 allows system administrators to consolidate separate hardware servers on to a single server running Microsoft Windows Server 2003 as the host operating system.
Each of the hosted servers runs in its own separate and isolated virtual machine environment. This allows the administrator to easily manage, provide for, and maintain large numbers of servers, and reduces the need to run multiple hardware servers in order to utilize various server products and operating systems.
Another advantage of the virtual machine environment is in test and disaster recovery. Each virtual machine session running under Virtual Server is maintained as a file, which is easily archived or trferred to another hardware server in the event of a failure. New server and system configurations can be deployed and tested in parallel with the existing system without requiring costly downtime during the rollout phase.
Virtual Server
Virtual networks in Microsoft Virtual Server allow virtual machines running in the same Virtual Server session to communicate with each other at data rates which are not limited by physical hardware. A virtual network can be configured with a basic DHCP server which is not dependent on any of the virtual machine sessions operating systems.
A new virtual network is initialized when an IVMVirtualNetwork object is created using IVMVirtualServer::CreateVirtualNetwork. The IVMVirtualNetwork object is the equivalent to a multi-port Ethernet switching hub and the IVMVirtualNetwork's properties allow software monitoring of the virtual network's data trmission statistics.
Each virtual network is automatically equipped with a basic virtual DHCP server. This server is implemented via the IVMDHCPVirtualNetworkServer COM object and can be accessed through the virtual network's DHCPVirtualNetworkServer property value. Since a virtual machine can be attached to multiple virtual networks, a virtual network's associated IVMDHCPVirtualNetworkServer object should be initialized before any virtual machine sessions are attached to that virtual network.
Attaching a virtual machine to a virtual network is a two-step process. First, the virtual machine must have an open virtual network adapter, which is created using IVMVirtualMachine::AddNetworkAdapter. Second, the adapter is attached to the virtual network with IVMNetworkAdapter::AttachToVirtualNetwork. Previously existing network adapters in a virtual machine can be freely connected to and disconnected from any virtual network using IVMNetworkAdapter::AttachToVirtualNetwork and IVMNetworkAdapter::DetachFromVirtualNetwork.
When a virtual network is deleted or unregistered, any virtual network cards connected to the virtual network are logically detached before the IVMVirtualNetwork object is deleted. This is the equivalent of unplugging network cables from a physical switching hub and can result in incomplete data trmission if any virtual machine sessions were trferring data across the virtual network while the network object was being deleted.
Accessing Virtual Server using Visual Basic:
To use the Virtual Server object in Visual Basic, select Project/Add Reference from the menu, select the COM tab in the dialog box, then scroll down the list and select Virtual Server 2005 Type Library. Once the type library is added as a reference, the VirtualServer object can be referenced and used in the program.
Kerberos is the authentication protocol that is being used by virtual servers. It maintains an active directory computer object that is involved in clustering. This provides the client security and easy to use features. It provides the provision of message queuing on a virtual server and allows the clients to publish the information to other computer systems. It provides clustering as well and by configuring its properties more options can be found out to be used.
Accessing Virtual Server using Visual C++:
Accessing the Virtual Server COM object using VC++ requires a few manual steps to set up the development environment properly. Two files are included with Virtual Server: "VSComInterfaces.h" and "VSComInterfaces.lib". These two files are located in the "Program FilesMicrosoft Virtual ServerDocumentation" directory after installation.
The benefits that are involved in virtual server host clustering are as follows:
Microsoft Virtual server includes the following features:
Remote site virtualization provides server virtualization and need for remote management for the virtual machines. It is provided due to limited resources that might not exist. The main challenge is to apply the server consolidations. Each server is using dedicative service functions and small servers and not using multiple servers. If single server approach is being given then there will be less power requirements, space requirements and only one server to manage and backup that will make it prone to fail and reduce the efficiency.
Virtual Server
The benefits that are involved in virtual server host clustering are as follows:
Microsoft virtual server provides virtualization platform that allows the creation of virtual machine using a windows operating system. It is developed by Connectix. This platform provides the provision to create and manage the virtual machines using IIS web based interface that keeps all the settings and configuration at one place. It also allows the management of network configuration for communicating with host operating system or other guest operating systems.
Microsoft Virtual server is used to access the network application resource that is in a non-clustered environment. In this clients connected to network must remain connected in case of any failure in network access to the application and resources get lost or the connection becomes unavailable. Microsoft Virtual server allows creation of virtual servers. These virtual servers don’t belong to any particular computer and can be damaged within a group too. The server is used to identify a group that belongs or communicating with each other in the form of IP addresses.
The limitations of Kerberos protocol that is being used by the Microsoft virtual server are as follows:
To secure Microsoft the virtual server the steps that are required are as follows:
Virtual server consists of virtual network that in turn consists of virtual machines. It allows traffic to be isolated in virtual network while communicating with the host operating system. It allows the handling of network devices by virtual machine network service driver. This virtual machine network service driver come with the virtual server setup that is being performed on the host operating system. The main function of the network driver is to monitor the traffic and the routing packets. The virtual network can have several options defined like:
Hyper-V server is a hypervisor that doesn't require any other operating system to run on. It is a good platform for organizations that needs one consolidated single server. This is used where the infrastructure work load is not high. It provides host clustering to produce high availability for virtual machines. Hyper-V server provides added functionalities like managing, creating and distributing the virtual machines. It provides flexible and cost effective solutions for enterprise organizations.