不重启虚拟机在线增加网卡 [iyunv@daixuan qemu]# virsh domiflist daixuan2 //查看daixuan2子机的网卡列表 Interface Type Source Model MAC ------------------------------------------------------- vnet2 bridge br1 virtio 52:54:00:3a:2a:71
命令行增加一块网卡: [iyunv@daixuan qemu]# virsh attach-interface daixuan2 --type bridge --source br1 成功附加接口
命令行增加的网卡只保存在内存中,重启就失效,所以需要保存到配置文件中,其中 /etc/libvirsh/qemu/daixuan2.xml 为daixuan2子机的配置文件 [iyunv@daixuan qemu]# virsh dumpxml daixuan2 > /etc/libvirt/qemu/daixuan2.xml [iyunv@daixuan qemu]# virsh console daixuan2 连接到域 daixuan2
在线增加了eth3网卡 [iyunv@localhost ~]# ifconfig -a eth3 Link encap:Ethernet HWaddr 52:54:00:3A:2A:71 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
eth4 Link encap:Ethernet HWaddr 52:54:00:A6:C7:6A BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:11 Base address:0x8000
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) 调整cpu和内存查看子机配置:
virsh dominfo daixuan1
[iyunv@daixuan ~]# virsh edit daixuan1
修改:
<memory unit='KiB'>524288</memory> //最大可用内存
<currentMemory unit='KiB'>524288</currentMemory> //现在的内存
<vcpu placement='static'>1</vcpu> //cpu核数
为:
<memory unit='KiB'>624288</memory>
<currentMemory unit='KiB'>624288</currentMemory>
<vcpu placement='static'>2</vcpu>
重启虚拟机:
virsh destroy daixuan1
virsh start daixuan1
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