KVM (ii) Managing operating virtual machines

Cont.: KVM (i) Installation configuration

Client Host Name: VM1

[[Email protected] ~]# hostnamevm1[[email protected] ~]# ifconfig eth0eth0       Link encap:Ethernet  HWaddr 52:54:00:44:70:00           inet addr:192.168.100.134  bcast :192.168.100.255  mask:255.255.255.0           inet6 addr: fe80::5054:ff:fe44:7000/64 scope:link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:268 errors:0 dropped:0  overruns:0 frame:0          tx packets:66  errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000          RX bytes:21071  (20.5 kib)    TX bytes:7997  (7.8 kib) [[email protected] ~]# cat /etc/sysconfig/ Network-scripts/ifcfg-eth0device=eth0ipaddr=192.168.100.134netmask=255.255.255.0gateway=192.168.100.2hwaddr= 52:54:00:44:70:00type=ethernetuuid=ef9bdb2d-b13a-453a-81ee-03c7e2b93883onboot=yesnm_controlled=nobootproto= Static

1. Install power Management Services to clients

[[email protected] ~]# yum install acpid-y[[email protected] ~]#/etc/init.d/acpid start[[email protected] ~]# chkconfig Acpid on

2. Managing VMS

List all the VMS now

[Email protected] ~]# Virsh list--all

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Shutdown operation on the VM

[Email protected] ~]# Virsh shutdown VM1

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Restart operation on this VM

[Email protected] ~]# Virsh start VM1

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Power down the VM (this operation must be active in the VM running state)

[Email protected] ~]# Virsh destroy VM1

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A start operation can also be performed on the host after a power outage

Set the VM as a host to boot up

[Email protected] ~]# Virsh autostart vm1

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Start the VM as a configuration file

[Email protected] qemu]# Virsh create/etc/libvirt/qemu/vm1.xml

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Manage the configuration files for exporting VMS,

Virsh dumpxml vm2 >/etc/libvirt/qemu/vm2bak.xml

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Delete VMS (you need to shut down the VM beforehand, the operation will only delete the VM's profile and not delete the disk file)

Virsh undefine vm2

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Use a backup VM configuration file to redefine

Virsh Define Vm2.xml

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Temporarily Hang VM

Virsh Suspend VM2

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To re-enable a suspended VM

Virsh Resume VM2

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Get CPU information for a VM

Virsh Vcpuinfo vm2

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Get the status of a VM

Virsh domstate vm2

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This article is from the "Big Wind" blog, please be sure to keep this source http://lansgg.blog.51cto.com/5675165/1672077

KVM (ii) Managing operating virtual machines