you must have ODM and PowerPath. There is a section that discusses MPIO  [URL]
Hello and Good Afternoon All!  Setup: AIX 6.1 LPAR running on Power 7 PowerPath 6.0SP1 VNX 5600 FLARE Block 05.33.008.5.119 (we are doing ONLY block)       We are in the process of migrating from a DMX-4 to a VNX-5600 and we just started a test with an AIX LPAR.  We were expecting to see the drives show up like the DMX-4 drives did and list themselves as hdiskpowerX (where X is the number of the drive).  However, what we are seeing has given us pause as it appears the AIX server thinks these are MPIO devices and not hdiskpower devices?  Here is what we are seeing: # lsdev -Cc disk hdisk77     Available C3-T1-01 MPIO Other FC SCSI Disk Drive hdisk78     Available C3-T1-01 MPIO Other FC SCSI Disk Drive hdiskpower0 Available C6-T1-01 PowerPath Device  Here is our INQ output as well: /dev/rhdisk77     :DGC     :VRAID           :0533  :0B56C5ED   : 134217728  /dev/rhdisk78     :DGC     :VRAID           :0533  :0A56C5EA   : 134217728  The hdisk77 and 78 are the VNX devices and the hdiskpower is from the DMX.  My question is should these new VNX devices show up as hdiskpower devices as well or is it due to the fact that I have set the failover mode to "3" for AIX that they show up as MPIO/Other?  I have seen reference to ODM drivers, but we never needed those with PowerPath on our AIX with the DMX and I even saw a post where it said you cannot have both the ODM and PowerPath together.  Again, it could be that they just show up as MPIO, but I suspect that a nob on our end might need to be turned possibly.  Thank you for any feedback!  Cheers, Travis
AIX server not listing VNX LUNs as hdiskpower devices but as MPIO???