virsh查看所有虚拟机，KVM虚拟化环境下使用virsh命令查看和管理已启动虚拟机的详细指南
virsh命令用于在KVM虚拟化环境下查看和管理已启动虚拟机，本指南详细介绍了如何使用virsh命令查看所有虚拟机及其详细信息。...
virsh命令用于在KVM虚拟化环境下查看和管理已启动虚拟机，本指南详细介绍了如何使用virsh命令查看所有虚拟机及其详细信息。
随着云计算和虚拟化技术的不断发展，KVM（Kernel-based Virtual Machine）作为一种开源的虚拟化技术，在服务器虚拟化领域得到了广泛应用，在KVM环境中，virsh命令是管理虚拟机的重要工具之一，本文将详细介绍如何使用virsh命令查看和管理已启动的虚拟机，旨在帮助读者更好地掌握KVM虚拟化技术。
virsh命令简介
virsh是KVM虚拟化环境中一个强大的命令行工具，用于管理虚拟机，它提供了查看、启动、停止、备份和恢复虚拟机等功能，通过virsh命令，用户可以轻松地管理KVM虚拟机，提高服务器资源利用率。
查看已启动的虚拟机
1、使用virsh list命令
virsh list命令用于列出所有正在运行的虚拟机，以下是一个示例：
[root@server ~]# virsh list Id Name State 1 vm1 running 2 vm2 running 3 vm3 running
在上面的示例中，我们可以看到虚拟机vm1、vm2和vm3正在运行。
2、使用virsh list --all命令
virsh list --all命令用于列出所有虚拟机，包括已启动、已停止和已禁用的虚拟机，以下是一个示例：
[root@server ~]# virsh list --all Id Name State 1 vm1 running 2 vm2 running 3 vm3 running 4 vm4 shutdown 5 vm5 poweredOff
在上面的示例中，我们可以看到虚拟机vm1、vm2、vm3、vm4和vm5的状态。
3、使用virsh domname命令
virsh domname命令用于获取虚拟机的名称，以下是一个示例：
[root@server ~]# virsh domname 1 vm1
在上面的示例中，我们通过虚拟机的ID（1）获取了虚拟机的名称（vm1）。
管理已启动的虚拟机
1、查看虚拟机详细信息
使用virsh dominfo命令可以查看虚拟机的详细信息，包括CPU、内存、磁盘、网络等，以下是一个示例：
[root@server ~]# virsh dominfo vm1 Id: 1 Name: vm1 UUID: 12345678-1234-5678-1234-567812345678 OS Type: hvm OS Version: CentOS Linux 7 (Core) Host OS Type: linux Host OS Version: 3.10.0-514.26.2.el7.x86_64 Memory Size: 4096 Current Memory: 4096 Max Memory: -1 Number of CPUs: 2 CPU(s) model: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz CPU(s) speed: 2499.99 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 0.00s CPU(s) max speed: 2500.00 MHz CPU(s) min speed: 500.00 MHz CPU(s) time: 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