with virt-manager
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1. Hypervisors and Virtual Machine Management Gone are the days when only a single operating system was installed on
a server, and a single server could run different operating systems by installing multiple virtual machines. The heavy use of virtual machines reduces the hardware required to service their servers and reduces the power consumption of servers, but brings another problem, the increase in the number of multiple virtual machines makes management more complex.
Virtualization creates new challenges for managing virtual machines and their resources, as well as the underlying resources of physical hosts. Multiple operating systems now share the resources of a physical host in the form of virtual machines, and there is no longer a one-to-one mapping relationship between operating systems and physical hosts. Each virtual machine is represented by a container that holds one or more virtual disks and other metadata that describe the virtual machine's configuration and constraints. Each virtual machine shares the resources of the physical host, and the host needs to not only configure, but also understand the utilization of those resources (to ensure that the virtual machines have the right density to optimally use the host without overburdening the available resources, won't waste them either).
2. Introduction to
Virtual Machine Manager Virtual Machine Manager (virt-manager) is an open source solution for virtual machine management, developed by Red-Hat. The advantages of Virtual Machine Manager are obvious, it significantly simplifies the ability to manage virtual machines, while providing the ability to measure virtual machine performance and monitor resource utilization.
Virtual Machine Manager (virt-manager) is a lightweight application suite in the form of a command line or graphical user interface (GUI) for managing virtual machines. In addition to providing management capabilities for virtual machines, virt-manager provides a full graphical console for guest virtual machines through an embedded Virtual Network Computing (VNC) client viewer.
3. Introduction to the virtualization management tool suite
virt-manager is a primary user of the libvirt virtualization API, but there is a growing ecosystem of tools using this interface for virtualization management. The virt-manager package provides a convenient GUI for creating and managing virtual machines on multiple hypervisors and hosts. If you prefer the command line, there are many tools that give you the power and control that only the command line can provide.
The virt-install tool provides the ability to configure new virtual machines. virt-manager provides a small number of configuration options for virtual machine creation, while virt-install provides rich configuration options, including installation method, storage configuration, network configuration, graphics configuration, virtualization options, and a large virtualized device option list.
The virt-image tool is similar to the virt-install tool, but allows you to define the details of the virtual machine creation process in XML. This XML descriptor file specifies general metadata for the virtual machine, domain properties (CPU, memory, etc.), and storage configuration.
The virt-clone tool provides a way to clone an existing virtual machine image. By cloning, I mean duplicating an existing virtual machine with updated parameters to ensure that the new virtual machine is unique to avoid conflicts (such as MAC address conflicts).
The virt-viewer tool provides a graphical console for a given virtual machine using the VNC protocol. virt-viewer can be attached to a virtual machine running on the local host or a remote host.
Finally, the most powerful tool for managing guest domains is the virtualized shell, or virsh. virsh can be used to list, start and stop virtual machines, and create virtual machines. In short, you can use virsh to perform comprehensive management across hypervisors by exposing virtualization features not available in other tools.
virt-manager installation:
①For debian system
sudo apt-get install virt-manager ②Verify
whether the installation is successful
ps ax | grep libvirtd ③Use
the which command to confirm whether the virt-manager package has been installed, and to know the location of the virt-manager file.
which virt-manager
④Use QEMU as the hypervisor, this is because QEMU can run
sudo apt-get install qemu on any hardware
a server, and a single server could run different operating systems by installing multiple virtual machines. The heavy use of virtual machines reduces the hardware required to service their servers and reduces the power consumption of servers, but brings another problem, the increase in the number of multiple virtual machines makes management more complex.
Virtualization creates new challenges for managing virtual machines and their resources, as well as the underlying resources of physical hosts. Multiple operating systems now share the resources of a physical host in the form of virtual machines, and there is no longer a one-to-one mapping relationship between operating systems and physical hosts. Each virtual machine is represented by a container that holds one or more virtual disks and other metadata that describe the virtual machine's configuration and constraints. Each virtual machine shares the resources of the physical host, and the host needs to not only configure, but also understand the utilization of those resources (to ensure that the virtual machines have the right density to optimally use the host without overburdening the available resources, won't waste them either).
2. Introduction to
Virtual Machine Manager Virtual Machine Manager (virt-manager) is an open source solution for virtual machine management, developed by Red-Hat. The advantages of Virtual Machine Manager are obvious, it significantly simplifies the ability to manage virtual machines, while providing the ability to measure virtual machine performance and monitor resource utilization.
Virtual Machine Manager (virt-manager) is a lightweight application suite in the form of a command line or graphical user interface (GUI) for managing virtual machines. In addition to providing management capabilities for virtual machines, virt-manager provides a full graphical console for guest virtual machines through an embedded Virtual Network Computing (VNC) client viewer.
3. Introduction to the virtualization management tool suite
virt-manager is a primary user of the libvirt virtualization API, but there is a growing ecosystem of tools using this interface for virtualization management. The virt-manager package provides a convenient GUI for creating and managing virtual machines on multiple hypervisors and hosts. If you prefer the command line, there are many tools that give you the power and control that only the command line can provide.
The virt-install tool provides the ability to configure new virtual machines. virt-manager provides a small number of configuration options for virtual machine creation, while virt-install provides rich configuration options, including installation method, storage configuration, network configuration, graphics configuration, virtualization options, and a large virtualized device option list.
The virt-image tool is similar to the virt-install tool, but allows you to define the details of the virtual machine creation process in XML. This XML descriptor file specifies general metadata for the virtual machine, domain properties (CPU, memory, etc.), and storage configuration.
The virt-clone tool provides a way to clone an existing virtual machine image. By cloning, I mean duplicating an existing virtual machine with updated parameters to ensure that the new virtual machine is unique to avoid conflicts (such as MAC address conflicts).
The virt-viewer tool provides a graphical console for a given virtual machine using the VNC protocol. virt-viewer can be attached to a virtual machine running on the local host or a remote host.
Finally, the most powerful tool for managing guest domains is the virtualized shell, or virsh. virsh can be used to list, start and stop virtual machines, and create virtual machines. In short, you can use virsh to perform comprehensive management across hypervisors by exposing virtualization features not available in other tools.
virt-manager installation:
①For debian system
sudo apt-get install virt-manager ②Verify
whether the installation is successful
ps ax | grep libvirtd ③Use
the which command to confirm whether the virt-manager package has been installed, and to know the location of the virt-manager file.
which virt-manager
④Use QEMU as the hypervisor, this is because QEMU can run
sudo apt-get install qemu on any hardware