virsh help domain命令内容解析

最新推荐文章于 2022-03-18 09:00:00 发布

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最新推荐文章于 2022-03-18 09:00:00 发布

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分类专栏： KVM / DevOps

本文链接：https://blog.youkuaiyun.com/dongfei2033/article/details/81485130

本文主要介绍了virsh命令中的domain相关操作，包括虚拟机的创建、启动、销毁、管理，XML配置处理，CPU与内存调整，块设备管理，设备的附加与分离，迁移操作，QEMU来宾代理的使用，以及网络和其他相关功能。通过这些命令，可以全面地管理和控制虚拟机。

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简介

这段时间学习热迁移，要不断的在qemu monitor和libvirt中调转使用命令，故整理virsh命令，这篇是第一篇，整理virsh help domain相关内容

<span style="color:#656565"><span style="color:#333333"><code><span style="color:#ffffff">virsh </span><span style="color:#87ceeb"># help domain</span>
<span style="color:#98fb98">Domain</span> <span style="color:#98fb98">Management</span> <span style="color:#ffffff">(</span><span style="color:#ffffff">help keyword </span><span style="color:#ffa0a0">'domain'</span><span style="color:#ffffff">):</span><span style="color:#ffffff">
attach</span><span style="color:#ffffff">-</span><span style="color:#ffffff">device                  attach device </span><span style="color:#f0e68c"><strong>from</strong></span><span style="color:#ffffff"> an XML file</span><span style="color:#ffffff">(通过</span><span style="color:#ffffff">XML</span><span style="color:#ffffff">配置给虚拟机添加设备)</span><span style="color:#ffffff">
attach</span><span style="color:#ffffff">-</span><span style="color:#ffffff">disk                    attach disk device</span><span style="color:#ffffff">(添加磁盘设备）</span><span style="color:#ffffff">
attach</span><span style="color:#ffffff">-</span><span style="color:#f0e68c"><strong>interface</strong></span><span style="color:#ffffff">               attach network </span><span style="color:#f0e68c"><strong>interface</strong></span><span style="color:#ffffff">（添加网络设备）</span>
<span style="color:#ffffff">**</span><span style="color:#ffffff">autostart</span><span style="color:#ffffff">**</span><span style="color:#ffffff">  
autostart a domain</span><span style="color:#ffffff">（给虚拟机添加自动启动配置，当</span><span style="color:#ffffff">libvirtd</span><span style="color:#ffffff">服务被拉起的时候，自动启动）</span><span style="color:#ffffff">
blkdeviotune                   </span><span style="color:#98fb98">Set</span> <span style="color:#f0e68c"><strong>or</strong></span><span style="color:#ffffff"> query a block device I</span><span style="color:#ffffff">/</span><span style="color:#ffffff">O tuning parameters</span><span style="color:#ffffff">.（设置或查询磁盘</span><span style="color:#ffffff">I</span><span style="color:#ffffff">/</span><span style="color:#ffffff"> O</span><span style="color:#ffffff">参数）</span><span style="color:#ffffff">
blkiotune                      </span><span style="color:#98fb98">Get</span> <span style="color:#f0e68c"><strong>or</strong></span> <span style="color:#f0e68c"><strong>set</strong></span><span style="color:#ffffff"> blkio parameters</span><span style="color:#ffffff">（获取或设置</span><span style="color:#ffffff">blkio</span><span style="color:#ffffff">参数）</span><span style="color:#ffffff">
blockcommit                    </span><span style="color:#98fb98">Start</span><span style="color:#ffffff"> a block commit operation</span><span style="color:#ffffff">.（将磁盘文件的变化保存到备份文件中）</span><span style="color:#ffffff">
blockcopy                      </span><span style="color:#98fb98">Start</span><span style="color:#ffffff"> a block copy operation</span><span style="color:#ffffff">.（拷贝磁盘备份镜像到目的地）</span><span style="color:#ffffff">
blockjob                       </span><span style="color:#98fb98">Manage</span><span style="color:#ffffff"> active block operations</span><span style="color:#ffffff">（管理</span><span style="color:#ffffff">active</span><span style="color:#ffffff">状态的磁盘任务）</span><span style="color:#ffffff">
blockpull                      </span><span style="color:#98fb98">Populate</span><span style="color:#ffffff"> a disk </span><span style="color:#f0e68c"><strong>from</strong></span><span style="color:#ffffff"> its backing image</span><span style="color:#ffffff">.（从</span><span style="color:#ffffff">backing file</span><span style="color:#ffffff">中拷贝数据到磁盘）</span><span style="color:#ffffff">
blockresize                    </span><span style="color:#98fb98">Resize</span><span style="color:#ffffff"> block device of domain</span><span style="color:#ffffff">.（给虚拟机的块设备扩容）</span><span style="color:#ffffff">
change</span><span style="color:#ffffff">-</span><span style="color:#ffffff">media                   </span><span style="color:#98fb98">Change</span><span style="color:#ffffff"> media of CD </span><span style="color:#f0e68c"><strong>or</strong></span><span style="color:#ffffff"> floppy drive</span><span style="color:#ffffff">（更新</span><span style="color:#ffffff">cdrom</span><span style="color:#ffffff">或</span><span style="color:#ffffff">floppy</span><span style="color:#ffffff">设备）</span><span style="color:#ffffff">
console                        connect to the guest console</span><span style="color:#ffffff">（通过控制连接虚拟机）</span><span style="color:#ffffff">
cpu</span><span style="color:#ffffff">-</span><span style="color:#ffffff">baseline                   compute baseline CPU</span><span style="color:#ffffff">（计算基准</span><span style="color:#ffffff">CPU</span><span style="color:#ffffff">）</span><span style="color:#ffffff">
cpu</span><span style="color:#ffffff">-</span><span style="color:#ffffff">compare                    compare host CPU </span><span style="color:#f0e68c"><strong>with</strong></span><span style="color:#ffffff"> a CPU described </span><span style="color:#f0e68c"><strong>by</strong></span><span style="color:#ffffff"> an XML file</span><span style="color:#ffffff">（将</span><span style="color:#ffffff">XML</span><span style="color:#ffffff">中配置的</span><span style="color:#ffffff">CPU</span><span style="color:#ffffff">与</span><span style="color:#98fb98">HostCPU</span><span style="color:#ffffff">进行对比）</span><span style="color:#ffffff">
cpu</span><span style="color:#ffffff">-</span><span style="color:#ffffff">stats                      show domain cpu statistics</span><span style="color:#ffffff">（显示</span><span style="color:#ffffff">CPU</span><span style="color:#ffffff">统计信息）</span><span style="color:#ffffff">
create                         create a domain </span><span sty