I am new here,

      Any one would know, what "powermig transition" would do? I looked the EMC® PowerPath® Family - CLI and System Messages Reference Guide, but could not find anything about the 'transition' argument for powermig command. I need to do some update in the rc.shutdown script for the AIX server and found an existing script as follows and trying to understand, what it does. Below, I have pasted lines from rc.shutdown, which I am trying to understand.

#! /bin/ksh
lsdev -Cl powerpath0 | grep Available > /dev/null
if [ $? -eq 0 -a -x /usr/sbin/powermig ]; then
  /usr/sbin/powermig transition -noprompt 2>/dev/null; fi

Any help would be appreciated.

Thanks.