if you use VIO Server and need to share CD or TAP UNIT or Disks from VIO to LPAR, and after finishing from Mapping Configuration and try to run “cfgmgr on the LPAR,
you may see the following Error :
#cfgmgr cfgmgr: 0514-621 WARNING: The following device packages are required for device support but are not currently installed. devices.vdevice.v-scsi:devices.vdevice.IBM.v-scsi
This just till you that you need to Install the Virtual Device on this LPAR.
you can search on the following links to find the compatible package with your AIX Level :
http://www-01.ibm.com/support/docview.wss?uid=isg1fileset390648959
http://www-01.ibm.com/support/docview.wss?uid=isg1fileset1151397248