You can do staged upgrade if you wish.
Running prolonged time with a multi-version cluster is not recommended and not supported. Especially so for major release difference.
Such configurations are not tested for longevity. Certain functions will not work as expected, due to to configuration support differences. These situations are not well documented because they are not officially supported. You can find examples in the forum.
You'd be likely better off running the latest 7.x version first.
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Running prolonged time with a multi-version cluster is not recommended and not supported. Especially so for major release difference.
Such configurations are not tested for longevity. Certain functions will not work as expected, due to to configuration support differences. These situations are not well documented because they are not officially supported. You can find examples in the forum.
You'd be likely better off running the latest 7.x version first.
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Hello, yes, you can upgrade a single node, but there are a few things to keep in mind, for example:
- It is possible that you won't be able see the updated node in the webui of a non-updated node
- Migrating a guest from a node using a old qemu version to one using a newer version does work, but the other way around might not
among other things. As long as it is done for a well-defined testing period it is ok, but I would advice against it as a medium-term solution.
- It is possible that you won't be able see the updated node in the webui of a non-updated node
- Migrating a guest from a node using a old qemu version to one using a newer version does work, but the other way around might not
among other things. As long as it is done for a well-defined testing period it is ok, but I would advice against it as a medium-term solution.