【修改kvm虚拟机的资源大小cpu、内存、硬盘】
# virsh list --all
Id Name State-------------------------------------------------- bbotte shut off # virsh setvcpus bbotte --maximum 4 --config# virsh setmaxmem bbotte 1048576 --config
# virsh dominfo bbotteId: 2Name: bbotteUUID: bd22f444-ee7f-7f00-3d1b-1bb0d0857e43OS Type: hvmState: runningCPU(s): 4CPU time: 152.3sMax memory: 1048576 KiBUsed memory: 524288 KiBPersistent: yesAutostart: disableManaged save: noSecurity model: noneSecurity DOI: 0 ####修改xml配置文件###
1、virsh edit centos73 （更改前要将virsh shutdown centos73 ） 找到“memory”和“vcpu”标签，将 <name>centos73</name> <uuid>2220a6d1-a36a-4fbb-8523-e078b3dfe795</uuid> <memory unit='KiB'>2097152</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>1</vcpu> 改为： <name>centos73</name> <uuid>2220a6d1-a36a-4fbb-8523-e078b3dfe795</uuid> <memory unit='KiB'>3145728</memory> <currentMemory unit='KiB'>3145728</currentMemory> <vcpu placement='static'>2</vcpu> virsh define /etc/libvirt/qemu/centos73.xml 重定义使配置生效 重启虚拟机 virsh start centos73 --console 查看原配置信息 [root@localhost kvm]# virsh dominfo centos734 Id: - Name: centos73 UUID: 2220a6d1-a36a-4fbb-8523-e078b3dfe795 OS Type: hvm State: shut off CPU(s): 1 Max memory: 2097152 KiB Used memory: 2097152 KiB Persistent: yes Autostart: disable Managed save: no Security model: none Security DOI: 0 调整后信息： [root@localhost kvm]# virsh dominfo centos73 Id: - Name: centos73 UUID: 2220a6d1-a36a-4fbb-8523-e078b3dfe795 OS Type: hvm State: shut off CPU(s): 2 Max memory: 3145728 KiB Used memory: 3145728 KiB Persistent: yes Autostart: disable Managed save: no Security model: none Security DOI: 0参考连接：
https://blog.csdn.net/hnhuangyiyang/article/details/50902223
转载于:https://www.cnblogs.com/huanglinxin/p/10145529.html
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