Document URL: Enabling multipathing with kernel arguments on RHCOS https://docs.openshift.com/container-platform/4.7/post_installation_configuration/machine-configuration-tasks.html#rhcos-enabling-multipath_post-install-machine-configuration-tasks Describe the issue: In the following BZ, the engineering team commented that multipath cannot be used in environments upgraded from 4.6 or earlier. Bug 2091467 - Does bare-metal support multi-path configuration of the boot area? >We do not support turning on multipath day-2 on nodes that have been upgraded from 4.6 or earlier. However, the documentation says the following in the prerequisites, which is incorrect. ``` Prerequisites You have a running OpenShift Container Platform cluster that uses version 4.7 or later. You are logged in to the cluster as a user with administrative privileges. ``` Suggestions for improvement: It should state that environments upgraded from 4.6 or earlier are not supported and the machine must be rebuilt.
Ryoji -- Does this PR meet your expectations? The multipathing as a day-2 activity module in 4.7 is different than the module in 4.8+. When we settle on the wording here, I can add the note to the 4.8+ docs in a separate PR. I am assuming we need the note in 4.8+ also. https://github.com/openshift/openshift-docs/pull/49439 Thank you for catching this, Michael
Hi Michael Confirmed. Yes, I think it is concise and clear. Thank you for the fix.
Ryoji -- Do you think we need this note in all versions 4.8+? Or just 4.7? Michael
Jonathan -- Can you PTAL at my PR? Do you know if we need this note in all versions 4.8+? Or just 4.7? Michael https://github.com/openshift/openshift-docs/pull/49439
Hi Michael I think all versions 4.8+ are better. I believe there are many cases of repeated use of upgrades from older versions.
@mike-nguyen can you review my PR? Is this something in your area? Thank you. Michael
Changes are live: https://docs.openshift.com/container-platform/4.11/installing/installing_bare_metal/installing-bare-metal.html#rhcos-enabling-multipath_installing-bare-metal
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days