Hi.  This is an internal PowerPath Migration Enabler command.  It shouldn't be used.  What is your intent?

Thanks.

Thanks for your response. My intent is simple here. I needed to update the rc.shutdown file to stop some IBM WebSphere applications before the server shuts down. However, I found those existing lines in the rc.shutdown file. Nobody, in my team could answer the purpose of those lines in the rc.shutdown file. I googled, but could not find the real purpose of 'transition' when it's used with 'powermig' command.

It would be great, if you can point me any document/url that explains the purpose of '/usr/sbin/powermig transition -noprompt'.

Thanks again.

Hi.  There is no external document for this because it was not intended for use by customers.  Are you an EMC employee?

Thank you very much again, your feedback at least gave me some idea. It would be good, if you were able to high light more on the usage of 'powermig transtion'. In any case, you already helped me here.

    No, I am not EMC employee.

Thanks

It's a non-user command that is used at shutdown and startup.  At shutdown, it first recovers any migration in needsRecovery, then checks for device faults and performs the necessary transitions if any, then disallows all I/O to migration devices, then sets a flag that says the shutdown was successful.

Thank you very much Brion. I really appreciate your time and effort.