RabbieBurns Posted June 28, 2012 Posted June 28, 2012 My HA hyperV cluster hosts need to have windows updates done on them and to be rebooted etc. I have started to live migrate the guests from one to the others so i can then do the updates and restarts etc. However rather than do this all manually is there an easier way to do it? If i just install the updates and then hit reboot will the guests automatically live migrate? Or was my initial thought correct and I need to move them off first? Cheers
strawberry Posted June 28, 2012 Posted June 28, 2012 Need to move them first otherwise they just shutdown and reopen on the other node. 1
bart21 Posted June 28, 2012 Posted June 28, 2012 should use esx - up on entering maintenance mode on the host it will move all the guests to other hosts in the cluster automatically! nick
ascott2 Posted June 28, 2012 Posted June 28, 2012 System Centre Virtual Machine Manager can put a host into maintenance mode and live migrate to the best possible host. 1
RabbieBurns Posted June 28, 2012 Author Posted June 28, 2012 If i put it into maintenance mode will it live migrate automatically?
RabbieBurns Posted June 30, 2012 Author Posted June 30, 2012 If i put it into maintenance mode will it live migrate automatically? Yes they do I manually migrated them all first time round, and then after doing updates and restarts on host 1 i put host 2 into maintenance mode and they all migtrated automatically to host 1. However Ive now done updates on host 2 and went to restart but it seems to have hung when restarting at "shutting down cluster service service" Is it safe to cold reboot or should i leave it for a while longer?
RabbieBurns Posted June 30, 2012 Author Posted June 30, 2012 found this page and a fix which has saved a cold reboot Hyper-V Cluster with 2 CSVs hangs on service shutdown of Cluster I just had the same issue today. All virtual machines were stopped before trying to reboot. But instead of cutting the power I tried something a little less drastic. I tried to kill tasks until the initiated shutdown process could continue. This one worked since I still had ping responses from the server: taskkill /S vhost2 /IM c* (but you could just try all letters in the alphabet until you get lucky) Result: SUCCESS: The process "cimlistener.exe" with PID 1592 has been terminated. SUCCESS: The process "conhost.exe" with PID 1864 has been terminated. SUCCESS: The process "clussvc.exe" with PID 2148 has been terminated. And then the shutdown completed! Although Im not sure if a subsequent reboot will have the same problem.
Arthur Posted June 30, 2012 Posted June 30, 2012 Although I'm not sure if a subsequent reboot will have the same problem. Do you have any VMs which are configured to use dynamic memory? Hyper-V Host Freezes When Dynamic Memory VM’s Use All RAM
RabbieBurns Posted June 30, 2012 Author Posted June 30, 2012 all of them except the linux guests use dynamic ram. The problem happened exactly as described in the scenario i posted tho rather than any sudden lockup. It was after a maintenance mode reboot after live migrating all the vms from one host to the other.
RabbieBurns Posted August 31, 2012 Author Posted August 31, 2012 this is still happening when I reboot, the cluster service service doesn't stop and i need to use the aforementioned fix to remotely kill the process and then it will shutdown / reboot successfully. Theres a load of posts on technet about this too but none seem to offer a solution... Ive attached the output of cluster.log which is what a lot of the technet articles talk about but not sure if anyone can help... Cluster.zip
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