Hi all, Still relatively new to CloudStack and learning, testing etc.
I have created 1 management server with mysql on it and created 2 clusters with a nfs primary storage server in each and a number of hosts in each. I have been working through the servers, putting them in maintenance mode (noting the vm migrations), updating and rebooting them. All working fine I then wanted to update and reboot the server running the management and mysql. It is also a host, so I set it in maintenance mode so no vms running on it. I thought if I update it and reboot, all I would lose for a period of time was access to the management server, the vms should keep running on their various hosts The reboot, took longer than usual, it seemed to hang for 15-20mins before shutting down and rebooting. To my surprise though I lost contact to all the vms on the other hosts. They all shut down. Apologies, if I have missed something here, I thought I understood. All virtual routers and system vms appeared to be running on the other hosts. Is it because the management server took a while to reboot, the other hosts have lost contact and shutdown their vms? seems odd? Any suggestions, help welcome. As I say, still learning! Thanks Brian