Today i attended a case about VIO servers AIX is not a system you touch every day either VIO servers if you don’t know what VIO server are here is an extract about them from the IBM site:
VIO technology is based on the idea of having special LPARs that manage the disk and network resources that other LPARs use on the same pSeries or IBM System p servers. Instead of the individual network and disk resources being carved out on an LPAR-by-LPAR basis (especially in cases where there wouldn’t be sufficient resources for all the LPARs to possess what they require to function), one or two VIO servers are given control of these resources and share them out to the other LPARs (VIO client LPARs).