Rakesh, No magic exists. Migrate forth, reboot, and migrate back. What I'm really wondering about is why you upgrade every time, Ubuntu releases a new kernel... There are a pretty small amount of fixes related to KVM and hosts are located in the private networks, they are single-tenant. Maybe you just have to change to policy for that?
чт, 13 дек. 2018 г. в 16:54, Rakesh v <www.rakeshv....@gmail.com>: > Hello Folks > > I have a question regarding upgrading OS on hypervisor. We have few > platforms with around 200 hypervisors in each platforms. Every time a new > Ubuntu kernel comes in with new security patch like L1TF fix or other , we > need to upgrade kernel on all hypervisors. Before rebooting hypervisor we > enable maintenance on it so that all vm's are migrated away. During this > maintenance we always see some Network interruptions because of live > migrations. > > How are you guys handling such situations and how are doing the OS > upgrades? If you have some suggestions or using some automation tools then > please let know > > I want to reduce time taken to upgrade all hypervisors without any impact > to Networks or VM's > > Sent from my iPhone -- With best regards, Ivan Kudryavtsev Bitworks LLC Cell RU: +7-923-414-1515 Cell USA: +1-201-257-1512 WWW: http://bitworks.software/ <http://bw-sw.com/>
