I have a confusion between the role played by foundation and phoenix, during a LCM firmware upgrade, moreover I am not finding a deep dive article explaining this end to end:
1. Once the phoenix iso is created and mounted to the host along with the upgrade bundle, Can phoenix run independently and complete the upgrades or needs help from foundation for performing some tasks like host reboot ?
2. During LCM upgrade, since the node undergoing upgrades, will have all VMs powered off including the CVM, will it take help from a remote CVM foundation to orchestrate the upgrades on this host ?
3. Putting host in maintenance mode is taken care by LCM or foundation service?
4. Can you please give a high level working of the phoenix mechanism, since the hypervisor installer itself is a separate iso, which needs to be mounted, just wondering how phoenix handles multiple iso, does it mount simultaneously with the upgrade iso?
Best answer by Nupur.SakhalkarView original