https://www.jianshu.com/p/60132085a3c9
kvm points static and dynamic migration, migration of static is to shut down, relatively simple, live migration is not shut down the server migration.
Static migration:
determining the virtual machine shut down
https://mhl.xyz/Linux/kvm-static-migrate.html
What is static migration?
Static Migration: Migration, also known as conventional, offline migration (Offline Migration). In the case of migration is the virtual machine or machines suspended from one physical machine to another physical machine. Because the virtual machine file system built on a virtual machine image above, so in the case of the virtual machine machines, just simple migration of virtual machine images and the corresponding configuration file to another physical host; before if you need to save virtual machine migration state, before migrating a virtual machine suspend, then copy status to the destination host, and finally rebuild the virtual machine state at the destination host, resume execution. The migration process in this way requires an explicit stop running virtual machines. From the user's perspective, there are definite period of downtime, service on the virtual machine is not available. This method of migration is simple and suitable for service availability requirements are not strict occasions.
KVM virtual machine installation and static branch
https://cloud.tencent.com/developer/news/116278
KVM live migration
http://terenceli.github.io/%E6%8A%80%E6%9C%AF/2018/03/01/qemu-live-migration
https://www.ibm.com/developerworks/cn/linux/l-cn-mgrtvm2/index.html
https://blog.51cto.com/xiaoli110/1941777
https://github.com/huataihuang/cloud-atlas/blob/master/source/kvm/kvm_live_migration.rst
https://greeeenish.github.io/2018/10/30/2018-10-30.KVM%E5%9C%A8%E7%BA%BF%E8%BF%81%E7%A7%BB/