What is the xenserver virtual infrastructure?
XenServer virtual infrastructure includes the following main components:
Xen Hypervisor (Xen kernel): The core component of Bare metal virtualization technology is responsible for creating and managing virtual machines directly on physical hardware.
Dom0 (Domain 0): Also known as the control domain, it is a special virtual machine running on Xen Hypervisor. It is responsible for managing other virtual machines and the entire virtualized environment, providing primary control and management functions.
DomU (Domain U): Also known as the guest domain, it is an ordinary virtual machine running on the Xen Hypervisor. Each DomU can be an independent operating system instance in which applications and services can run.
XenCenter (Xen Management Center): is a graphical management tool used to remotely manage and monitor the XenServer environment. Through XenCenter, administrators can easily create, configure, and manage virtual machines, storage resources, network settings, and more.
Resource Pool: Multiple XenServer hosts can form a resource pool to share computing, storage and network resources. Resource pools provide high availability and load balancing capabilities, and administrators can manage and deploy virtual machines in resource pools.
Storage management: XenServer supports a variety of storage options, including local storage, network storage (such as iSCSI and NFS), and storage area network (SAN) integration. Administrators can select the appropriate storage configuration based on their needs.
Network management: XenServer provides flexible network management functions, supporting the creation of virtual networks and VLANs, and configuring network connections for virtual machines. Administrators can isolate and restrict networks to ensure security and performance between virtual machines.
These components together constitute the virtual infrastructure of XenServer, providing users with powerful virtualization capabilities and flexible management functions.
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