{"id":1535,"date":"2017-07-05T16:29:57","date_gmt":"2017-07-05T08:29:57","guid":{"rendered":"http:\/\/nick.txtcc.com\/?p=1535"},"modified":"2022-05-12T18:25:57","modified_gmt":"2022-05-12T10:25:57","slug":"centos7-2%e9%83%a8%e7%bd%b2kvm%e8%99%9a%e6%8b%9f%e6%9c%ba","status":"publish","type":"post","link":"http:\/\/nick.txtcc.com\/index.php\/linux\/1535","title":{"rendered":"CentOS7.2\u90e8\u7f72KVM\u865a\u62df\u673a"},"content":{"rendered":"<p>\u5b66\u4e60\u4e86\u5173\u4e8ePostGis\u3001OSM\u6570\u636e\u4ee5\u53caMapnik\u76f8\u5173\u5185\u5bb9\uff0c\u63a5\u4e0b\u6765\u5c06\u5229\u7528\u5047\u671f\u91cd\u70b9\u5b66\u4e60PostgreSQL-XL\u548c\u74e6\u7247\u670d\u52a1\u5668\u96c6\u7fa4\u6280\u672f\uff0c\u56e0\u6b64\u5148\u628a\u73af\u5883\u642d\u597d\u3002\u8ba1\u5212\u91c7\u7528KVM\u6765\u5145\u5206\u5229\u7528\u5bb6\u91cc\u4e0d\u592a\u5bbd\u88d5\u7684\u201c\u670d\u52a1\u5668\u201d\u8d44\u6e90\uff0c\u4ee5\u4fbf\u5b9e\u73b0\u5f39\u6027\u8ba1\u7b97:)<\/p>\n<p><a title=\"CentOS\" href=\"http:\/\/www.linuxidc.com\/topicnews.aspx?tid=14\" target=\"_blank\" rel=\"noopener\">CentOS<\/a>\u7248\u672c\uff1a64\u4f4d 7.2 \u00a01511<\/p>\n<h2>\u4e00\u3001\u5b89\u88c5KVM<\/h2>\n<ol>\n<li>\n<p>\u9a8c\u8bc1CPU\u662f\u5426\u652f\u6301KVM\uff1b\u5982\u679c\u7ed3\u679c\u4e2d\u6709vmx\uff08Intel\uff09\u6216svm(AMD)\u5b57\u6837\uff0c\u5c31\u8bf4\u660eCPU\u7684\u652f\u6301\u7684\u3002<\/p>\n<div class=\"cnblogs_code\">\n<pre>egrep '(vmx|svm)' \/proc\/cpuinfo<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733741.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<\/li>\n<li>\n<p>\u5173\u95edSELinux\uff0c\u5c06\u00a0<span class=\"cnblogs_code\">\/etc\/sysconfig\/selinux<\/span>\u00a0\u4e2d\u7684\u00a0<span class=\"cnblogs_code\">SELinux=enforcing<\/span>\u00a0\u4fee\u6539\u4e3a\u00a0<span class=\"cnblogs_code\">SELinux=disabled<\/span><\/p>\n<\/li>\n<\/ol>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733742.png\" alt=\"\" \/>\n<p>3.\u00a0\u6700\u5c0f\u5b89\u88c5\u7684CentOS\u5b89\u88c5\u4e00\u4e9b\u6700\u57fa\u672c\u7684\u5305\uff08\u53ef\u9009\u9879\uff0c\u56e0\u4e3a\u6211\u662f\u521a\u5b89\u88c5\u597d\u7684CentOS\uff0c\u6240\u4ee5\u4e3a\u4e86\u4e0b\u9762\u65b9\u4fbf\u70b9\uff0c\u5148\u628a\u4e00\u4e9b\u5fc5\u8981\u7684\u5de5\u5177\u5b89\u88c5\u4e0b\uff09<\/p>\n<div class=\"cnblogs_code\">\n<pre>yum install epel-release net-tools vim unzip zip wget ftp -y<\/pre>\n<\/div>\n<ol start=\"4\">\n<li>\n<p>\u5b89\u88c5KVM\u53ca\u5176\u4f9d\u8d56\u9879<\/p>\n<div class=\"cnblogs_code\">\n<pre>yum install qemu-kvm libvirt virt-install bridge-utils -y<\/pre>\n<\/div>\n<\/li>\n<li>\n<p>\u9a8c\u8bc1\u5b89\u88c5\u7ed3\u679c\uff0c\u4e0b\u56fe\u8bf4\u660e\u5df2\u7ecf\u6210\u529f\u5b89\u88c5\u4e86<\/p>\n<div class=\"cnblogs_code\">\n<pre>lsmod | grep kvm<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733743.png\" alt=\"\" \/>\n<\/li>\n<li>\n<p>\u5f00\u542fkvm\u670d\u52a1\uff0c\u5e76\u4e14\u8bbe\u7f6e\u5176\u5f00\u673a\u81ea\u52a8\u542f\u52a8<\/p>\n<div class=\"cnblogs_code\">\n<pre>systemctl start libvirtd<\/pre><\/div>\n<\/li>\n<\/ol>\n<p>systemctl enable libvirtd<\/pre>\n<\/div><\/p>\n<ol start=\"7\">\n<li>\u67e5\u770b\u72b6\u6001\u64cd\u4f5c\u7ed3\u679c,\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u8bf4\u660e\u8fd0\u884c\u60c5\u51b5\u826f\u597d\n<div class=\"cnblogs_code\">\n<pre>systemctl status libvirtd<\/pre><\/div><\/li>\n<\/ol>\n<p>systemctl is-enabled libvirtd<\/pre>\n<\/div><\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733744.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<ol start=\"8\">\n<li>\u914d\u7f6e\u7f51\u6865\u6a21\u5f0f\uff0c\u5148\u5c06\u00a0<span class=\"cnblogs_code\">\/etc\/sysconfig\/network-scripts\/<\/span>\u00a0\u76ee\u5f55\u4e0b\u7684\u7f51\u5361\u914d\u7f6e\u6587\u4ef6\u5907\u4efd\u4e00\u4efd(<strong>\u4e0d\u8981\u5907\u5728\u5f53\u524d\u76ee\u5f55\u4ee5\u53ca\u5b50\u76ee\u5f55\u4e0b\uff0c\u5176\u4ed6\u76ee\u5f55\u968f\u610f<\/strong>)<\/li>\n<\/ol>\n<p>a. \u521b\u5efa\u00a0<span class=\"cnblogs_code\">ifcfg-br0<\/span>\u00a0\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre>BOOTPROTO=static\nDEVICE=br0\nTYPE=Bridge\nNM_CONTROLLED=no\nIPADDR=192.168.1.95\nNETMASK=255.255.255.0\nGATEWAY=192.168.1.1\nDNS1=61.177.7.1\nDNS2=8.8.8.8<\/pre>\n<\/div>\n<p>b. \u79fb\u9664\u6389\u539f\u6765\u7684\u00a0<span class=\"cnblogs_code\">ifcfg-enp0s25<\/span>\u00a0,\u91cd\u65b0\u521b\u5efa\u8be5\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre>BOOTPROTO=none\nDEVICE=enp0s25\nNM_CONTROLLED=no\nONBOOT=yes\nBRIDGE=br0<\/pre>\n<\/div>\n<p>c. \u91cd\u542f\u7f51\u7edc\u670d\u52a1<\/p>\n<div class=\"cnblogs_code\">\n<pre>systemctl restart network<\/pre>\n<\/div>\n<p>\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">ifconfig<\/span>\u00a0\u9a8c\u8bc1\u64cd\u4f5c\u7ed3\u679c,\u591a\u4e86\u4e00\u5757\u7f51\u5361br0\uff0c\u73b0\u5728\u8bbf\u95ee\u00a0<span class=\"cnblogs_code\">think8848-srv02<\/span>\u00a0\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">192.168.1.95<\/span>\u00a0\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733746.png\" alt=\"\" \/>\n<p>\u4e8c\u3001\u5b89\u88c5\u865a\u62df\u673a<\/p>\n<ol>\n<li>\u51c6\u5907\u64cd\u4f5c\u7cfb\u7edf\u5b89\u88c5\u955c\u50cf\u6587\u4ef6\uff0c\u5728\u672c\u6587\u4e2d\u5c06\u4f7f\u7528\u548c\u5bbf\u4e3b\u73af\u5883\u4e00\u6837\u7684CentOS7.2\uff0c\u628a\u8be5\u6587\u4ef6\u653e\u5230\u00a0<span class=\"cnblogs_code\">\/home\/iso<\/span>\u00a0\u76ee\u5f55\u4e0b<\/li>\n<\/ol>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733745.png\" alt=\"\" \/>\n<ol start=\"2\">\n<li>\u521b\u5efa\u865a\u62df\u673a\u6587\u4ef6\u5b58\u653e\u7684\u76ee\u5f55\n<div class=\"cnblogs_code\">\n<pre>mkdir -p \/home\/kvm-bak<\/pre>\n<\/div><\/li>\n<li>\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">virt-install<\/span>\u00a0\u521b\u5efa\u865a\u62df\u673a\n<div class=\"cnblogs_code\">\n<pre>virt-install -n think8848-kvmbase -r 2048 --disk \/home\/kvm-bak\/think8848-kvmbase.img,format=qcow2,size=20 --network bridge=br0 --os-type=linux --os-variant=rhel7.2 --cdrom \/home\/iso\/CentOS-7-x86_64-DVD-1511.iso --vnc --vncport=5910 --vnclisten=0.0.0.0<\/pre><\/div><\/li>\n<\/ol>\n<p><\/pre><\/p>\n<p class=\"p1\"><span class=\"s1\">virt-install &#8211;name=win2008-product &#8211;memory 4096 &#8211;vcpus=1 &#8211;os-type=windows &#8211;disk path=\/home\/bzstorage\/kvm\/win2008-product\/win2008.img,format=qcow2,bus=ide &#8211;network bridge=br0 &#8211;graphics vnc,listen=0.0.0.0,port=5901 &#8211;noautoconsole &#8211;autostart -c \/home\/bzstorage\/public\/OS\/cn_windows_server_2008_r2_standard_enterprise_datacenter_web_x64_dvd_x15-50360.iso<\/span><\/p>\n<p><\/div>\n\u64cd\u4f5c\u7ed3\u679c\u663e\u793a\uff1a<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733747.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u4e0d\u8981\u7406\u4f1a\u91cc\u9762\u63d0\u793a\u7684\u9519\u8bef\uff0c\u63a5\u7740\u5f80\u4e0b\u8d70<\/p>\n<ol start=\"4\">\n<li>\u6253\u5f00\u9632\u706b\u5899\u4e0a\u76845910\u7aef\u53e3\n<div class=\"cnblogs_code\">\n<pre>firewall-cmd --zone=public --add-port=5910\/tcp --permanent<\/pre><\/div><\/li>\n<\/ol>\n<p>firewall-cmd &#8211;reload<\/pre>\n<\/div><\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733748.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<ol start=\"5\">\n<li>\u4f7f\u7528VNC\u8fde\u63a5\u8be5\u865a\u62df\u673a\uff0c\u8fdb\u884c\u865a\u62df\u673a\u64cd\u4f5c\u7cfb\u7edf\u7684\u5b89\u88c5\uff0c\u76f4\u63a5\u5230VNC<a href=\"https:\/\/www.realvnc.com\/download\/vnc\/\" target=\"_blank\" rel=\"noopener\">\u5b98\u7f51\u4e0a\u4e0b\u8f7d<\/a>\u6700\u65b0\u7248\u7684VNC Viewer\u5373\u53ef<\/li>\n<\/ol>\n<p>a. VNC Viewer<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/170127153733749.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>b. \u65b0\u5efa\u8fde\u63a5\uff0c\u63d0\u4f9b\u5bbf\u4e3bIP\u3001\u7aef\u53e3\u53f7(\u5728virt-install\u521b\u5efa\u8fc7\u7a0b\u4e2d\u6307\u5b9a\u7684)\uff0c\u4ee5\u53ca\u540d\u79f0<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337410.png\" alt=\"\" \/>\n<p>c. \u5728Expert\u9875\u7b7e\u4e2d\uff0c\u5c06ColorLevel\u7684\u503c\u7531\u539f\u6765\u7684\u00a0<span class=\"cnblogs_code\">pal8<\/span>\u00a0\u4fee\u6539\u4e3a\u00a0<span class=\"cnblogs_code\">rgb222<\/span>\u00a0\uff0c\u70b9\u51fbOK\u6309\u94ae\u4fdd\u5b58<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337411.png\" alt=\"\" \/>\n<p>d. \u5982\u679c\u4f60\u50cf\u6211\u4e00\u6837\uff0c\u8fb9\u64cd\u4f5c\u8fb9\u8fd8\u5728\u505a\u7b14\u8bb0\uff0c\u7b49\u4f60\u53cc\u51fb\u8fde\u63a5\u7684\u540d\u79f0\u540e\uff0c\u5b89\u88c5\u754c\u9762\u90fd\u51c6\u5907\u597d\u4e86<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337412.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u63a5\u4e0b\u6765\u5c31\u5b89\u88c5CentOS\u5427\uff0c\u8fc7\u7a0b\u7565\u3002<\/p>\n<ol start=\"6\">\n<li>\n<p>\u5b89\u88c5\u5b8cCentOS\uff0c\u7cfb\u7edf\u8981\u6c42\u91cd\u542f\uff0c\u8fd9\u65f6\u5019\u865a\u62df\u673a\u6ca1\u6709\u91cd\u542f(\u4e5f\u4e0d\u77e5\u662f\u56e0\u4e3a\u4ec0\u4e48\u95ee\u9898)\uff0cVNC\u4e5f\u8fde\u4e0d\u4e0a\uff0c\u5148\u5728\u5bbf\u4e3b\u673a\u4e0a\u67e5\u770b\u865a\u62df\u673a\u72b6\u6001\uff0c\u663e\u793athink8848-kvmbase\u4e3a\u5173\u95ed\u72b6\u6001<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh list --all<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337413.png\" alt=\"\" \/>\n<\/li>\n<li>\n<p>\u624b\u52a8\u542f\u52a8\u865a\u62df\u673a<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh start think8848-kvmbase<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337414.png\" alt=\"\" \/>\n<\/li>\n<\/ol>\n<p>\u518d\u6b21\u4f7f\u7528VNC\u8fde\u63a5\uff0c\u53d1\u73b0\u5df2\u7ecf\u53ef\u4ee5\u8fde\u8fdb\u53bb\u4e86<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337415.png\" alt=\"\" \/>\n<h2>\u4e09\u3001\u7b80\u5355\u914d\u7f6eKVM\u865a\u62df\u673a<\/h2>\n<ol>\n<li>\u7f51\u6865\u914d\u7f6e\uff0c\u8fd9\u91cc\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0c\u5982\u679c\u4f60\u5728\u865a\u62df\u673a\u4e2d\u5b89\u88c5CentOS\u8fc7\u7a0b\u4e2d\uff0c\u914d\u7f6e\u4e86\u5408\u9002\u7684\u7f51\u683c\u53c2\u6570\uff0c\u90a3\u4e48\u8fd9\u65f6\u865a\u62df\u673a\u91cc\u5e94\u8be5\u5c31\u53ef\u4ee5\u4f7f\u7528\u7f51\u7edc\u4e86\u3002\u5982\u679c\u5f53\u65f6\u5c31\u91c7\u7528\u7cfb\u7edf\u5b89\u88c5\u5305\u7684\u9ed8\u8ba4\u53c2\u6570\uff0c\u672a\u542f\u7528\u7f51\u5361\uff0c\u90a3\u4e48\u6b64\u65f6\u4f60\u9700\u8981\u542f\u52a8\u865a\u62df\u673a\u7684\u7f51\u5361\uff0c\u5148\u770b\u4e0b\u865a\u62df\u673a\u7f51\u5361\u7684\u914d\u7f6e\u6587\u4ef6\u5217\u8868\uff0c\u8c8c\u4f3c\u548c\u666e\u901a\u7535\u8111\u5b89\u88c5\u6ca1\u5565\u533a\u522b\uff0c\u7f51\u5361\u7684\u914d\u7f6e\u6587\u4ef6\u662f\u00a0<span class=\"cnblogs_code\">ifcfg-eth0<\/span><\/li>\n<\/ol>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337416.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u518d\u67e5\u770b\u00a0<span class=\"cnblogs_code\">ifcfg-eth0<\/span>\u914d\u7f6e\u6587\u4ef6\uff0c\u548c\u666e\u901a\u7535\u8111\u5b89\u88c5\u7684\u4e5f\u6ca1\u5565\u533a\u522b\uff0c\u6309\u7167\u8981\u6c42\u5462\uff0c\u8c8c\u4f3c\u5728\u4e00\u4e9b\u6587\u7ae0\u4e2d\u4ecb\u7ecd\uff0c\u8bf4\u9700\u8981\u6dfb\u52a0\u4e00\u884c\u914d\u7f6e\u00a0<span class=\"cnblogs_code\">NM_CONTROLLED=no<\/span>\u00a0\uff0c\u6211\u6ca1\u6dfb\u52a0\u4e5f\u6ca1\u53d1\u73b0\u6709\u4ec0\u4e48\u95ee\u9898\u3002<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337417.png\" alt=\"\" \/>\n<ol start=\"2\">\n<li>\u914d\u7f6e\u5728\u5bbf\u4e3b\u7aef\u767b\u5f55\u865a\u62df\u673ashell\u3002\u5f53\u7136\u5728\u5bbf\u4e3b\u7aef\u4e5f\u662f\u53ef\u4ee5\u901a\u8fc7SSH\u767b\u5f55\uff0c\u4f46\u662f\u76f4\u63a5\u767b\u5f55\u8c8c\u4f3c\u4e5f\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u65b9\u5f0f\u3002\u8fd9\u4e2a\u914d\u7f6e\u4e3b\u8981\u6709\u4e24\u4e2a\u6b65\u9aa4\uff1a<\/li>\n<\/ol>\n<p>a. \u7f16\u8f91\u00a0<span class=\"cnblogs_code\">\/etc\/default\/grub<\/span>\u00a0\u6587\u4ef6\uff0c\u5bf9\u7167\u5982\u4e0b\uff1a<\/p>\n<p>\u7f16\u8f91\u524d\uff1a<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337418.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u7f16\u8f91\u540e\uff1a<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337419.png\" alt=\"\" \/>\n<p>\u6587\u672c\u5185\u5bb9\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre>GRUB_DISTRIBUTOR=\"$(sed 's, release .*$,,g' \/etc\/system-release)\"\nGRUB_DEFAULT=saved\nGRUB_DISABLE_SUBMENU=true\nGRUB_TERMINAL=\"console serial\"\nGRUB_SERIAL_COMMAND=\"serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1\"\nGRUB_CMDLINE_LINUX=\"rd.lvm.lv=centos\/root rd.lvm.lv=centos\/swap rhgb\"\nGRUB_CMDLINE_LINUX_DEFAULT=\"console=tty1 console=ttyS0,115200\"\nGRUB_DISABLE_RECOVERY=\"true\"<\/pre>\n<\/div>\n<p>b. \u8fd0\u884c\u4e0b\u9762\u4e00\u884c\u7684\u4ee3\u7801<\/p>\n<div class=\"cnblogs_code\">\n<pre>grub2-mkconfig -o \/boot\/grub2\/grub.cfg<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337420.png\" alt=\"\" \/>\n<p>c. \u91cd\u542f\u865a\u62df\u673a\u00a0<span class=\"cnblogs_code\">reboot<\/span><\/p>\n<p>d. \u5728\u5bbf\u4e3b\u673a\u4e0a\u8fdb\u5165\u865a\u62df\u673a\u63a7\u5236\u53f0\uff0c\u60f3\u9000\u51fa\u65f6\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">Ctrl<\/span>\u00a0\u952e+\u00a0<span class=\"cnblogs_code\">] <\/span>\u00a0\uff08\u5de6\u65b9\u62ec\u53f7\uff09\u952e\u9000\u51fa\u3002<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh console think8848-kvmbase<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337421.png\" alt=\"\" \/>\n<h2>\u56db\u3001\u8fc1\u79fb\u865a\u62df\u673a<\/h2>\n<p>\u865a\u62df\u673a\u5efa\u597d\u540e\uff0c\u6700\u5927\u7684\u597d\u5904\u5c31\u662f\u4efb\u7531\u6211\u4eec\u6298\u817e\uff0c\u800c\u4e0d\u7528\u62c5\u5fc3\u91cd\u88c5\u7cfb\u7edf\u7684\u9ebb\u70e6\u3002\u6240\u4ee5\u4e00\u5b9a\u8981\u77e5\u9053\u865a\u62df\u673a\u600e\u4e48\u590d\u5236\u8fc1\u79fb\uff0c\u8fd9\u91cc\u6709\u4e24\u79cd\u60c5\u51b5\uff0c\u4e00\u79cd\u662f\u672c\u673a\u4e0a\u955c\u50cf\u590d\u5236\uff0c\u53e6\u4e00\u79cd\u662f\u5c06\u672c\u673a\u955c\u50cf\u8fc1\u79fb\u5230\u5176\u4ed6\u670d\u52a1\u5668\u4e0a\uff0c\u672c\u8282\u53c2\u8003\u81ea<a href=\"http:\/\/koumm.blog.51cto.com\/703525\/1291793\" target=\"_blank\" rel=\"noopener\">\u8fd9\u91cc<\/a>\uff0c\u611f\u8c22koumm\u3002<\/p>\n<ol>\n<li>\u672c\u673a\u590d\u5236<\/li>\n<\/ol>\n<p>a. \u5148\u5173\u95ed\u865a\u62df\u673a<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh shutdown think8848-kvmbase<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337422.png\" alt=\"\" \/>\n<p>b. \u5728\u00a0<span class=\"cnblogs_code\">\/home<\/span>\u00a0\u4e0b\u65b0\u5efa\u6587\u4ef6\u5939\u00a0<span class=\"cnblogs_code\">\/home\/kvm-img<\/span><\/p>\n<div class=\"cnblogs_code\">\n<pre>mkdir -p \/home\/kvm-img<\/pre>\n<\/div>\n<p>c. \u4f7f\u7528\u00a0<span class=\"cnblogs_code\">virt-clone<\/span>\u00a0\u514b\u9686think8848-kvmbase\u4e3a\u65b0\u7684\u865a\u62df\u673a<\/p>\n<div class=\"cnblogs_code\">\n<pre>virt-clone -o think8848-kvmbase -n think8848-kvm01 -f \/home\/kvm-img\/think8848-kvm01.img<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337423.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u514b\u9686\u5b8c\u6210<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337424.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">virsh list &#8211;all<\/span>\u00a0\u67e5\u770b<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337425.png\" alt=\"\" \/>\n<p>d. \u5f00\u542fthink8848-kvm01\uff0c\u7136\u540e\u4fee\u6539IP\u5730\u5740\u3001\u4e3b\u673a\u540d<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh start think8848-kvm01\n\nvirsh console think8848-kvm01\n\n#\u7b49\u865a\u62df\u673a\u542f\u52a8\u597d\u540e\uff0c\u7528root\u767b\u5f55\n\nhostname think8848-kvm01\n\n#\u7f16\u8f91\/etc\/hostname\u6587\u4ef6\uff0c\u4fee\u6539\u4e3b\u673a\u540d\u4e3athink8848-kvm01\nvi \/etc\/hostname\n\n#\u7f16\u8f91\/etc\/sysconfig\/network-scripts\/ifcfg-eth0\uff0c\u4fee\u6539IPADDR<\/pre>\n<\/div>\n<p>e.\u00a0 <span class=\"cnblogs_code\">reboot<\/span>\u00a0\u91cd\u542f\u865a\u62df\u673a\uff0c\u91cd\u542f\u540e\u521a\u624d\u4fee\u6539\u7684\u5185\u5bb9\u5df2\u7ecf\u751f\u6548\u4e86\u3002<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337426.png\" alt=\"\" \/>\n<ol start=\"2\">\n<li>\u5c06\u865a\u62df\u673a\u955c\u50cf\u8fc1\u79fb\u5230\u5176\u4ed6\u670d\u52a1\u5668\u4e0a<\/li>\n<\/ol>\n<p>a. \u5148\u5c06\u865a\u62df\u673a\u7684\u914d\u7f6e\u6587\u4ef6\u548c\u955c\u50cf\u6587\u4ef6\u653e\u5230\u5408\u9002\u7684\u4f4d\u7f6e(\u6211\u642d\u4e86\u4e00\u53f0FTP\u670d\u52a1\u5668\uff0c\u65b9\u4fbf\u6d4b\u8bd5\u65f6\u6240\u6709\u7684\u6587\u4ef6\u4f20\u8f93\uff0c\u5982\u4e0b\u56fe\u6240\u793a)<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337427.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>b. \u73b0\u5728\u5230\u670d\u52a1\u5668\u8f6c\u6218\u5230think8848-srv01(IP:192.168.1.96)\uff0c\u521a\u624d\u865a\u62df\u673a\u662f\u5728think8848-srv02\uff08IP:192.168.1.95\uff09\u4e0a\u521b\u5efa\u7684\u3002<strong>\u4ee5\u4e0b\u6240\u6709\u64cd\u4f5c\u5747\u662f\u5728think8848-srv01\u4e0a\u8fdb\u884c\u7684<\/strong><\/p>\n<p>c. \u5c06ftp\u4e0a\u7684think8848-kvm01.img\u653e\u5230\/home\/kvm-img\u76ee\u5f55\uff0c\u5c06think8848-kvm01.xml\u653e\u5230\/etc\/libvirt\/qemu\u76ee\u5f55\u4e2d<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337428.png\" alt=\"\" width=\"705\" vspace=\"5\" \/>\n<p>d. \u7f16\u8f91think8848-kvm02.xml\uff0c\u5c06\u91cc\u9762\u6240\u6709think8848-kvm01\u66ff\u6362\u4e3athink8848-kvm02\uff0c\u7136\u540e\u628aUUID\u6362\u4e3a\u65b0\u7684(\u76f4\u63a5\u4f7f\u7528<a href=\"https:\/\/www.guidgen.com\/\" target=\"_blank\" rel=\"noopener\">\u8fd9\u4e2a<\/a>\u5728\u7ebf\u5de5\u5177\u751f\u6210\u5427)<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337429.png\" alt=\"\" \/>\n<p>e. \u5b9a\u4e49\u65b0\u865a\u62df\u673a<\/p>\n<div class=\"cnblogs_code\">\n<pre>virsh define \/etc\/libvirt\/qemu\/think8848-kvm02.xml<\/pre>\n<\/div>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337430.png\" alt=\"\" \/>\n<p>\u56fe\u4e2dthink8848-kvm01\u662f\u6211\u4e4b\u524d\u5728\u5bbf\u4e3b\u673a\u4e2d\u914d\u7f6e\u7684\u865a\u62df\u673a\uff0c\u6070\u597d\u540d\u79f0\u4e0e\u4e4b\u524d\u7684\u91cd\u590d\u4e86\u3002\u6211\u5728think8848-kvm01\u4e0a\u6ca1\u6709\u5b89\u88c5ftp\u5ba2\u6237\u7aef\uff0c\u5728\u65b0\u8fc1\u79fb\u7684\u865a\u62df\u673a\u91cc\u9762\u5b89\u88c5\u4e86ftp\uff0c\u53ef\u4ee5\u5229\u7528\u8fd9\u4e2a\u5305\u9a8c\u8bc1\u865a\u62df\u673a\u662f\u5426\u6b63\u786e<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337431.png\" alt=\"\" \/>\n<p>OK,\u8bf4\u660e\u6ca1\u6709\u95ee\u9898<\/p>\n<p>f. \u73b0\u5728\u662f\u65f6\u5019\u518d\u7ed9\u65b0\u7684\u865a\u62df\u673a\u6307\u5b9a\u65b0\u4e3b\u673a\u540d\u548cIP\u4e86\u3002\u521a\u624d\u662f\u6211\u4eec\u91cd\u542f\u751f\u6548\u7684\uff0c\u8fd9\u6b21\u6211\u4eec\u4e0d\u8981\u91cd\u542f\u4e86\uff0c\u5148\u4f7f\u7528\u00a0<span class=\"cnblogs_code\">systemctl restart network<\/span>\u00a0\u4f7f\u65b0IP\u751f\u6548\uff0c\u7136\u540e\u518d\u00a0<span class=\"cnblogs_code\">exit<\/span>\u00a0\u6ce8\u9500\u7528\u6237\u4f7f\u4e3b\u673a\u540d\u751f\u6548\uff0c\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337432.png\" alt=\"\" \/>\n<p>\u6700\u540e\u4e00\u4e2a\u95ee\u9898\uff0c\u5982\u679c\u5728\u514b\u9686\u6216\u8fc1\u79fb\u540e\u60f3\u4f7f\u7528VNC\u8fde\u63a5\uff0c\u90a3\u5c31\u9700\u8981\u91cd\u65b0\u6307\u5b9aVNC\u7684\u7aef\u53e3\u53f7\uff0c\u5c06\u00a0<span class=\"cnblogs_code\">\/etc\/libvirt\/qemu\/think8848-kvm02.xml<\/span>\u00a0\u4e2d\u7684VNC\u7aef\u53e3\u53f7\u4fee\u6539\u4f60\u9700\u8981\u7684\u503c\u5373\u53ef\u3002<\/p>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337434.png\" alt=\"\" \/>\n<img decoding=\"async\" src=\"http:\/\/www.linuxidc.com\/upload\/2017_01\/1701271537337433.png\" alt=\"\" \/>\n<p>\u589e\u52a0CDROM\u8bbe\u5907<\/p>\n<p><disk type='file' device='cdrom'><\/p>\n<p><driver name='file'\/><\/p>\n<p><source file='\/usr\/share\/xenpv-win-32bit\/xenpv-win-32bit.iso'\/><\/p>\n<p><target dev='hdb'\/><\/p>\n<p><readonly\/><\/p>\n<p><\/disk><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\"><vcpu><\/span>\n<span class=\"s2\">8<\/span>\n<span class=\"s1\"><\/vcpu><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 <\/span><\/span>\n<span class=\"s1\"><cputune><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;0&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;16&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;1&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;17&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;2&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;18&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;3&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;19&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;4&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;20&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;5&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;21&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;6&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;22&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><vcpupin <\/span>\n<span class=\"s3\">vcpu<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8216;7&#8217;<\/span> <span class=\"s3\">cpuset<\/span>\n<span class=\"s2\">=<\/span>\n<span class=\"s4\">&#8217;23&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p class=\"p1\"><span class=\"s2\"><span class=\"Apple-converted-space\">\u00a0 <\/span><\/span>\n<span class=\"s1\"><\/cputune><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\"><cpu <\/span>\n<span class=\"s2\">match<\/span>\n<span class=\"s3\">=<\/span>\n<span class=\"s4\">&#8216;exact&#8217;<\/span>\n<span class=\"s1\">><\/span><\/p>\n<p class=\"p2\"><span class=\"s3\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s4\"><model><\/span>\n<span class=\"s3\">Westmere<\/span>\n<span class=\"s4\"><\/model><\/span><\/p>\n<p class=\"p2\"><span class=\"s3\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s4\"><vendor><\/span>\n<span class=\"s3\">Intel<\/span>\n<span class=\"s4\"><\/vendor><\/span><\/p>\n<p class=\"p3\"><span class=\"s3\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\n<span class=\"s1\"><topology <\/span>\n<span class=\"s4\">sockets<\/span>\n<span class=\"s3\">=<\/span>\n<span class=\"s5\">&#8216;2&#8217;<\/span> <span class=\"s4\">cores<\/span>\n<span class=\"s3\">=<\/span>\n<span class=\"s5\">&#8216;6&#8217;<\/span> <span class=\"s4\">threads<\/span>\n<span class=\"s3\">=<\/span>\n<span class=\"s5\">&#8216;2&#8217;<\/span>\n<span class=\"s1\">\/><\/span><\/p>\n<p><\/cpu><\/p>\n<h1><strong>qemu-kvm\u78c1\u76d8\u8bfb\u5199\u7684\u7f13\u51b2(cache)\u6a21\u5f0f<\/strong><\/h1>\n<p>\u4e00\u5171\u6709\u4e94\u79cd\uff0c\u5206\u522b\u662f\u00a0writethrough, wirteback, none, unsafe, directsync\n\u5f53\u4f60\u5bf9VM\u8bfb\u5199\u78c1\u76d8\u7684\u6027\u80fd\u6709\u4e0d\u540c\u7684\u8981\u6c42\u7684\u65f6\u5019\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u542f\u52a8\u7684\u53c2\u6570(cache=xxxx)\u91cc\u9762\u8fdb\u884c\u4e00\u4e2a\u5408\u7406\u7684\u9009\u62e9.<\/p>\n<p>\u73b0\u5728\u6765\u7b80\u5355\u8bf4\u4e00\u8bf4\u8fd9\u4e94\u79cd\u6a21\u5f0f\u7684\u5404\u81ea\u7684\u7279\u70b9(\u9ed8\u8ba4\u7684\u662fwriteback)<\/p>\n<p>cache=writethrough:\n\u8be5\u6a21\u5f0f\u5bf9\u5e94\u7684\u6807\u5fd7\u4f4d\u662fO_DSYNC\uff0c\u4ec5\u5f53\u6570\u636e\u88ab\u63d0\u4ea4\u5230\u4e86\u5b58\u50a8\u8bbe\u5907\u91cc\u9762\u7684\u65f6\u5019\uff0c\u5199\u64cd\u4f5c\n\u624d\u4f1a\u88ab\u5b8c\u6574\u7684\u901a\u544a\u3002\u6b64\u65f6host\u7684\u9875\u7f13\u5b58\u53ef\u4ee5\u88ab\u7528\u5728\u4e00\u79cd\u88ab\u79f0\u4e3awritethrough\u7f13\u5b58\u7684\u6a21\u5f0f\u3002\nguest\u7684\u865a\u62df\u5b58\u50a8\u8bbe\u5907\u88ab\u544a\u77e5\u6ca1\u6709\u56de\u5199\u7f13\u5b58(writeback cache)\uff0c\u56e0\u6b64guest\u4e0d\u9700\u8981\u4e3a\u4e86\n\u64cd\u7eb5\u6574\u5757\u6570\u636e\u800c\u53d1\u9001\u5237\u65b0\u7f13\u5b58\u7684\u6307\u4ee4\u4e86\u3002\u6b64\u65f6\u7684\u5b58\u50a8\u529f\u80fd\u5982\u540c\u6709\u4e00\u4e2a\u76f4\u5199\u7f13\u5b58(writethrough cache)\u4e00\u6837<\/p>\n<p>cache=none:\n\u6240\u5bf9\u5e94\u7684\u6807\u5fd7\u4f4d\u662fO_DIRECT,\u5728 none \u6a21\u5f0f\u4e0b\uff0cVM\u7684IO\u64cd\u4f5c\u76f4\u63a5\n\u5728qemu-kvm\u7684userspace\u7f13\u51b2\u548c\u5b58\u50a8\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\uff0c\u7ed5\u5f00\u4e86host\u7684\u9875\u7f13\u51b2\u3002\n\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u76f8\u5f53\u4e8e\u8ba9vm\u76f4\u63a5\u8bbf\u95ee\u4e86\u4f60\u7684host\u7684\u78c1\u76d8\uff0c\u4ece\u800c\u6027\u80fd\u5f97\u5230\u4e86\u63d0\u5347\u3002<\/p>\n<p>cache=writeback:\n\u5bf9\u5e94\u7684\u6807\u5fd7\u4f4d\u65e2\u4e0d\u662f O_DSYNC \u4e5f\u4e0d\u662f O_DIRECT ,\u5728writeback\u6a21\u5f0f\u4e0b\uff0cIO\u64cd\u4f5c\u4f1a\u7ecf\u8fc7\nhost\u7684\u9875\u7f13\u51b2\uff0c\u5b58\u653e\u5728host\u9875\u7f13\u51b2\u91cc\u7684\u5199\u64cd\u4f5c\u4f1a\u5b8c\u6574\u5730\u901a\u77e5\u7ed9guest.\n\u9664\u6b64\u4e4b\u5916,guest\u7684\u865a\u62df\u5b58\u8d2e\u9002\u914d\u5668\u4f1a\u88ab\u544a\u77e5\u6709\u56de\u5199\u7f13\u5b58(writeback cache),\u6240\u4ee5\u4e3a\u4e86\u80fd\u591f\n\u6574\u4f53\u5730\u7ba1\u7406\u6570\u636e\uff0cguest\u5c06\u4f1a\u53d1\u9001\u5237\u65b0\u7f13\u5b58\u7684\u6307\u4ee4.\u7c7b\u4f3c\u4e8e\u5e26\u6709RAM\u7f13\u5b58\u7684\u78c1\u76d8\u9635\u5217(RAID)\u7ba1\u7406\u5668.<\/p>\n<p>cache=unsafe:\n\u8be5\u6a21\u5f0f\u4e0ewriteback\u5dee\u4e0d\u591a\uff0c\u4e0d\u8fc7\u4eceguest\u53d1\u51fa\u7684\u5237\u65b0\u7f13\u5b58\u6307\u4ee4\u5c06\u4f1a\u88ab\u5ffd\u89c6\u6389\uff0c\u8fd9\u610f\u5473\u7740\u4f7f\u7528\u8005\n\u5c06\u4f1a\u4ee5\u727a\u7272\u6570\u636e\u7684\u5b8c\u6574\u6027\u6765\u6362\u53d6\u6027\u80fd\u7684\u63d0\u5347\u3002<\/p>\n<p>cache=directsync:\n\u8be5\u6a21\u5f0f\u6240\u5bf9\u5e94\u7684\u6807\u5fd7\u4f4d\u662fO_DSYNC\u548cO_DIRECT,\u4ec5\u5f53\u6570\u636e\u88ab\u63d0\u4ea4\u5230\u4e86\u5b58\u50a8\u8bbe\u5907\u7684\u65f6\u5019\uff0c\u5199\n\u64cd\u4f5c\u624d\u4f1a\u88ab\u5b8c\u6574\u5730\u901a\u544a,\u5e76\u4e14\u53ef\u4ee5\u653e\u5fc3\u5730\u7ed5\u8fc7host\u7684\u9875\u7f13\u5b58\u3002\n\u5c31\u50cfwritethrough\u6a21\u5f0f,\u6709\u65f6\u5019\u4e0d\u53d1\u9001\u5237\u65b0\u7f13\u5b58\u7684\u6307\u4ee4\u65f6\u5f88\u6709\u7528\u7684.\u8be5\u6a21\u5f0f\u662f\u6700\u65b0\u6dfb\u52a0\u7684\u4e00\u79cdcache\u6a21\u5f0f\uff0c\n\u4f7f\u5f97\u7f13\u5b58\u4e0e\u76f4\u63a5\u8bbf\u95ee\u7684\u7ed3\u5408\u6210\u4e3a\u4e86\u53ef\u80fd.<\/p>\n<img decoding=\"async\" src=\"https:\/\/forum.huawei.com\/enterprise\/zh\/data\/attachment\/forum\/202109\/06\/201204lz2wt9uh517bs0wz.png\" alt=\"qemu-kvm\u78c1\u76d8\u8bfb\u5199\u7684\u7f13\u51b2(cache)\u7684\u4e94\u79cd\u6a21\u5f0f-4121401-1\" data-src=\"https:\/\/forum.huawei.com\/enterprise\/zh\/data\/attachment\/forum\/202109\/06\/201204lz2wt9uh517bs0wz.png\" data-is-lazy=\"1\" data-is-loaded=\"1\" \/>\n<p>&nbsp;<\/p>\n<h2>\u00a0\u4e94\u3001KVM\u7ba1\u7406<\/h2>\n<p>\u53ef\u4ee5\u53c2\u8003\uff1a\u865a\u62df\u5316\u4e4bKVM virsh\u5e38\u7528\u547d\u4ee4\u7bc7\u00a0 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2017-01\/139993.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2017-01\/139993.htm\">http:\/\/www.linuxidc.com\/Linux\/2017-01\/139993.htm<\/a><\/a><\/p>\n<p>\u5728<a title=\"Ubuntu\" href=\"http:\/\/www.linuxidc.com\/topicnews.aspx?tid=2\" target=\"_blank\" rel=\"noopener\">Ubuntu<\/a>\u4e0a\u5b89\u88c5KVM\u5e76\u642d\u5efa\u865a\u62df\u73af\u5883 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2015-10\/123788.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2015-10\/123788.htm\">http:\/\/www.linuxidc.com\/Linux\/2015-10\/123788.htm<\/a><\/a><\/p>\n<p>KVM\u4e2dLinux\u865a\u62df\u673a\u7684\u786c\u76d8\u6dfb\u52a0\u65b9\u6cd5 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-02\/80067.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-02\/80067.htm\">http:\/\/www.linuxidc.com\/Linux\/2013-02\/80067.htm<\/a><\/a><\/p>\n<p>Linux\u5165\u95e8\u5b66\u4e60\u6559\u7a0b\uff1a\u865a\u62df\u673a\u4f53\u9a8c\u4e4bKVM\u7bc7\u00a0 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2015-03\/114462.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2015-03\/114462.htm\">http:\/\/www.linuxidc.com\/Linux\/2015-03\/114462.htm<\/a><\/a><\/p>\n<p>RHEL6 KVM\u865a\u62df\u5316\u521b\u5efa\u6865\u63a5\u7f51\u5361-\u7f51\u6865 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-08\/88517.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-08\/88517.htm\">http:\/\/www.linuxidc.com\/Linux\/2013-08\/88517.htm<\/a><\/a><\/p>\n<p><a title=\"RedHat\" href=\"http:\/\/www.linuxidc.com\/topicnews.aspx?tid=10\" target=\"_blank\" rel=\"noopener\">RedHat<\/a> Linux KVM\u865a\u62df\u673a\u6865\u63a5 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-02\/79934.htmCentOS\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-02\/79934.htm\">http:\/\/www.linuxidc.com\/Linux\/2013-02\/79934.htm<\/a><\/a><\/p>\n<p>CentOS 5.6\u4e0bKVM\u7684\u5b89\u88c5\/\u6865\u63a5\u8bbe\u7f6e\/\u865a\u62df\u673a\u521b\u5efa\u53ca\u8fd0\u884c <a href=\"http:\/\/www.linuxidc.com\/Linux\/2012-12\/76883.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2012-12\/76883.htm\">http:\/\/www.linuxidc.com\/Linux\/2012-12\/76883.htm<\/a><\/a><\/p>\n<p>Ubuntu\u4e0b\u7528libvirt\u5b89\u88c5KVM\u865a\u62df\u673a\u65f6\u627e\u4e0d\u5230\/bin\/qemu-kvm\u95ee\u9898\u89e3\u51b3 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-08\/88985.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2013-08\/88985.htm\">http:\/\/www.linuxidc.com\/Linux\/2013-08\/88985.htm<\/a><\/a><\/p>\n<p>RedHat6.5\u4e0b\u5b89\u88c5\u914d\u7f6eKVM\u865a\u62df\u673a <a href=\"http:\/\/www.linuxidc.com\/Linux\/2014-10\/107972.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2014-10\/107972.htm\">http:\/\/www.linuxidc.com\/Linux\/2014-10\/107972.htm<\/a><\/a><\/p>\n<p>KVM\u865a\u62df\u5316\u5e73\u53f0\u90e8\u7f72\u00a0 <a href=\"http:\/\/www.linuxidc.com\/Linux\/2016-10\/136164.htm\"><a href=\"http:\/\/www.linuxidc.com\/Linux\/2016-10\/136164.htm\">http:\/\/www.linuxidc.com\/Linux\/2016-10\/136164.htm<\/a><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u4e86\u5173\u4e8ePostGis\u3001OSM\u6570\u636e\u4ee5\u53caMapnik\u76f8\u5173\u5185\u5bb9\uff0c\u63a5\u4e0b\u6765\u5c06\u5229\u7528\u5047\u671f\u91cd\u70b9\u5b66\u4e60PostgreSQL-XL\u548c\u74e6\u7247\u670d\u52a1\u5668\u96c6\u7fa4\u6280\u672f\uff0c\u56e0\u6b64\u5148\u628a\u73af\u5883\u642d\u597d\u3002\u8ba1\u5212\u91c7\u7528KVM\u6765\u5145\u5206\u5229\u7528\u5bb6\u91cc\u4e0d\u592a\u5bbd\u88d5\u7684\u201c\u670d\u52a1\u5668\u201d&#46;&#46;&#46;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[356,462],"class_list":["post-1535","post","type-post","status-publish","format-standard","hentry","category-linux","tag-centos","tag-kvm"],"_links":{"self":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/comments?post=1535"}],"version-history":[{"count":5,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1535\/revisions"}],"predecessor-version":[{"id":2438,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1535\/revisions\/2438"}],"wp:attachment":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/media?parent=1535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/categories?post=1535"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/tags?post=1535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}